A Pew Research Center Poll of 1060 teens aged 13 to 17 showed that 57% of them have made new friends online. Use a 0.01 significance level to test the claim that half of all teens have made new friends online.
Q: According to a survey of 5041 Star Trek fans conducted in 2010, 2873 are females. Use this data to…
A: Null Hypothesis: H0: p<=0.5 Alternative Hypothesis: H1:p>0.5 Given that x=2873 and n=5041…
Q: 61.3% of all Americanslike pepperoni on their pizza. Is this a parameter or statistic? Why?
A: Parameter is a numerical measurement that describing a characteristic of a population.
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The sample size of people above age 55(n1) =The sample size of people under the age 25 (n2) =…
Q: A research study wishes to examine if there is a relationship between type of exercise (marathon,…
A: Steps to Determine the Critical Value:1. **Set up the Hypotheses:** - **Null Hypothesis (H0):**…
Q: A survey of 2255 randomly selected US adults found that 51% said they know all or most of their…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Confidence interval are used to determine the range where the true parameter lies. It calculated…
Q: The Australian sheep dog is a breed renowned for its intelligence and work ethic. It is estimated…
A:
Q: In 2014, the Pew Research Centers American Trends Panel sought to better understand what Americans…
A: Solution: Let X be the number of adults correctly interpret a scatterplot and n be the sample number…
Q: According to online resources, about 8% of all males have some color perception defect, most…
A: Given,8% of all males have the same color perception defect, most commonly red-green…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Claim: The proportion of people over 55 who dream in black and white is greater than the proportion…
Q: Approximately 20.5% of the U.S. population 5 years old and older speaks a language other than…
A: sample size is 400 & Population Proportion =0.205
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Denote p1, p2 as the true population proportions of people, who dream in black and white over the…
Q: It is believed that 10% of the children enrolled in the elementary schools are left-handed. Suppose…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: We have given that x1 = 71 , n1 = 323 x2 = 14, n2 = 288 Significance level (α) = 0.05
Q: According to the 2018 General Social Survey (GSS), 60% of all U.S. households have at least one pet.…
A: Here one proportion Z - test stats is applicable
Q: Construct a sample (with at least two different values in the set) of 55 measurements whose mean is…
A: We will have to keep 55 measurements in the set. And the mean has to be equal to the median. Let…
Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…
A: Let x1=The number of male internet users. And x2=The number of female internet users. With the usual…
Q: 10 years ago, a Gallop Poll reported that 79% of people reported that they enjoy driving their car.…
A: Given: Population proportionp=0.79Number of trials(n)=1048Number of successes (x)=734
Q: According to the U.S. Census Bureau, 11% of children in the United States lived with at least one…
A:
Q: A new soft drink is being market tested. A sample of 400 individuals participated in the taste test…
A: a)Rules to construct hypothesis :- we know that null hypothesis always contain sign ≤, ≥,=and…
Q: Assume that 1500 births are randomly selected and 760 of the births are girls. Use subjective…
A: Given Information: 1500 births are randomly selected and 760 of the births are girls. Use…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Among 274 people over the age of 55, 76 dream in black and white, and among 323 people under the age…
Q: as conducted to determine the proportion of people who dream in black and white instead of color.…
A: Sample size n1=297 , n2=311
Q: Based on a sample of 80 men, 35% owned cats Based on a sample of 40 women, 50% owned cats The test…
A:
Q: According to the Pew Research Center,on the propotion of the American population who use only a…
A: A)Verifying the conditions:It is given that, the proportion of the American population who use only…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: According to the U.S. Census Bureau, 11% of children in the United States lived with at least one…
A: It is given that p=0.11.
Q: Test whether a majority of Kansas residents planned to set off fireworks on July 4th. In other…
A: Testing of population proportion is used here which is a binomial test that compare a proportion of…
Q: In a recent Gallup poll, 507 adults age 18 and older were surveyed and 269 said they believed they…
A:
Q: According to the Pew Research Center,on the propotion of the American population who use only a…
A: Solution:Part(D):Finding the test statistic value for the hypothesis test for…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: Most adults would erase all of their personal information online if they could. A software firm…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Given n1=295 n2=292 X1=74 X2=14
Q: -0.000 d to three decimal places as needed.) is the conclusion based on the hypothesis test? value…
A: Given P1= x1/n1 =66/323 P2= x2/n2 =16/313
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Assume that p1, p2 are the population proportion of people who dream in black and white, over the…
Q: In June 2012 the Gallup organization conducted a pollusing a random sample of 1004 adults, aged 18…
A: From the given information, we have confidence Interval is 95% Sampling error is 4 percentage…
Q: In a study of brand recognition, 821 of the 849 subjects recognized the Campbell’s soup brand. Use…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: a. Denote p1, p2 as the true population proportions of people, who dream in black and white over…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: Astudy was conduccled to determine the proportion of people who dream in black and white instead of…
A: Given , People over age 55 : Sample size = n1 = 317 Number of people who dream in black and white =…
Q: A national study report indicated that 20.5% of Americans were identified as having medical bill…
A: Given: n= 400 ,x= 95.0 p= 0.205 p̂= 95 / 400
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The question is about hypo. testing Given : No. of people over age 55 under study ( n1 ) = 321 No.…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: The National Association of Home Builders reported that 57 % of young people ages 18-24 wereliving…
A: According to the provided information, 57% (p) of young people ages 18-24 were living with their…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The question is about hypo. testing Given : No. of people over the age 55 ( n1 ) = 303 No. of people…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 4 images
- By a small margin, Facebook remains the top choice of social media over all ages, with 29% using Facebook most often among those using social media sites. However, more visually oriented social networks such as Snapchat and Instagram continue to draw in younger audiences. When asked "Which one social networking brand do you use most often?" the results in the table show the top brands chosen by Americans aged 12-34 who currently use any social networking site or service. Social M edia Site Faceboo k Snapchat Instagra m Twitter Percentage That Use Most Often 29 28 26 6 20 (a) What is the sum of the percentages for these top social media sites? Give your answer as an exact number. Macmillan Learning top social media sites: What percent of Americans aged 12-34 use other social media sites most often? Give your answer as an exact number. other social media sites: do %A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 314 people over the age of 55, 73 dream in black and white, and among 291 people under the age of 25, 12 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. The 98% confidence interval isAssume that 800 births are randomly selected and 39 of the births are girls. Use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high.
- A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 285 people over the age of 55, 68 dream in black and white, and among 307 people under the age of 25, 14 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. An explanation for the results is that those over the age of 55 grew up exposed to media that was displayed in black and white. Can these results be used to verify that explanation? A. Yes. The results can be used to verify the given explanation because the difference in proportions is practically significant. B. Yes. The results can be used to verify the given explanation because the difference in proportions is statistically significant. C. No. The results speak to a possible difference between the proportions of people over 55 and under 25 who dream in…Because the confidence interval limits v 0, it appears that the two proportions are V Because the confidence interval limits include V values, it appears that the proportion of people over 55 who dream in black and white is V the proportion for those under 25. c. An explanation for the results is that those over the age of 55 grew up exposed to media that was displayed in black and white. Can these results be used to verify that explanation? O A. No. The results speak to a possible difference between the proportions of people over 55 and under 25 who dream in black and white, but the results cannot be used to verify the cause of such a difference. O B. No. The results speak to a possible difference between the proportions of people over 55 and under 25 who dream in black and white, but the results are not statistically significant enough to verify the cause of such a difference. O C. Yes. The results can be used to verify the given explanation because difference in proportions is…A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 303 people over the age of 55, 79 dream in black and white, and among 300 people under the age of 25, 18 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P₁ = P₂ H₁: P₁ P2 O D. Ho: P₁ #P₂ H₁: P₁ = P2 Identify the test statistic. z=0 Z= (Round to two decimal places as needed.) Identify the P-value. P-value= (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? the significance level of a = 0.01, so…
- About 7% of the popular has a mutation. 100 people are randomly selected. What is the mean for the number of people with a mutation?A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 318 people over the age of 55, 77 dream in black and white, and among 298 people under the age of 25, 16 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. H4: P1 P2 H: P1 #P2 O D. Ho: P1 SP2 H1: P1#P2 O E. Ho: P1 P2 H1: P1 = P2 O F. Ho: P1 =P2 H1: P1 #P2 Identify the test statistic. z= 6.52 (Round to two decimal places as needed.) Identify the P-value. P-value = 0.000 (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? The P-value is less than the significance level of a = 0.05, so reject the null hypothesis. There is sufficient evidence to support the claim that the proportion of people over 55 who dream in black and white is greater than the proportion…A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 300 people over the age of 55,80 dream in black and white, and among 287 people under the age of 25, 14 dreams in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. An explanation for the results is that those over the age of 55 grew up exposed to media that was displayed in black and white. Can these results be used to verify that explanation?
- Assume that 900 births are randomly selected and 443 of the births are girls. Use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high.A survey of 2255 randomly selected US adults found that 51% said they know all or most of their neighbors. Does this provide evidence that more than half of US adults know most or all of their neighbors? Use 5% significance level.A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 320 people over the age of 55, 72 dream in black and white, and among 313 people under the age of 25, 15 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? A. H0: p1=p2 H1: p1≠p2 B. H0: p1=p2 H1: p1>p2 C. H0: p1≥p2 H1: p1≠p2 D. H0: p1≠p2 H1: p1=p2 E. H0: p1≤p2 H1: p1≠p2 F. H0: p1=p2 H1:p1<p2 Identify the test statistic. z=_____ (Round to…
