Test the claim that the proportion of men who own cats is significantly different than 80% at the 0.1 significance level. Based on a sample of 500 people, 75% owned cats The test statistic is:  (to 2 decimals) The positive critical value is:  (to 2 decimals)

Q: A College Alcohol Study believes that there is a difference in the percentage of women and men that…

A: Given that, n1=1000,n2=1000 The type of test is two tailed test The value of test statistic is, z =…

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: n₁= 317 x₁= 69 n₂= 296 x₂= 15 α = 0.05

Q: From past experience, a teacher believes. score on an exam is 75. A sample of 20 follows: 78, 75,…

A:

Q: A software company is interested in improving customer satisfaction rate from the 69% currently…

A: Given Hypothesized pop. proportion, p0=0.69Favorable cases,x=146Sample size,n=193Sample…

Q: Which of these best describes the conclusion we could make using a 5% level of significance? Select…

A: The decision in the hypothesis testing can be made using two important methods. They are the p-value…

Q: A Michigan study concerning preference for outdoor activities used a questionnaire with a six-point…

A: Given: The provided data is: The sample number of adults that were asked about fishing as an outdoor…

Q: In 2011, a U.S. Census report determined that 62% of college students are working students. A…

A: The given values are:Proportion of working students according to the U.S. Census report,…

Q: Test the claim that the proportion of people who own cats is significantly different than 20% at the…

A: Given that  Sample size: n =400 Sample proportion: p^=0.12 Population proportion: P=0.20 Level of…

Q: n the samples that have been taken, the highest weighing item is paper waste with an average weight…

A: Hypothesis testing

Q: The z for a sample mean hypothesis test compares a sample mean to another mean. In these situations,…

A: From the above data We are given that the The z for a sample mean hypothesis test compares a…

Q: Using a 5% significance level, determine the p - value if Ha: H 26, x = 28, n=28, and s= 3.6. A…

A:

Q: In a sample of 500 students from statistics courses in the fall semester, 312 earned a grade of C or…

A: Given information: The data represents the number of students and the number of students earned C…

Q: A national health survey weighed a sample of 260 boys aged 6-11 and found that 45 of them were…

A: Hypothesis Testing

Q: The type of household for the U.S. population and for a random sample of 411 households from a…

A: Given data  N=411 α=0.05 Type of Household Percent of U.S.Households Observed Numberof Households…

Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.01…

A: Given: Sample size (n) = 500 The hypotheses are as follow: H0: p = 0.70 H1: p < 0.70 Sample…

Q: Test the claim that the proportion of men who own cats is significantly different than 45% at the…

A: Solution: Let X be number of men owned cats and n be the sample number of men. From the given…

Q: Three composition instructors recorded the number of spelling errors which their students made on a…

A:

Q: Is the mean level in the sample significantly different from the population mean?   b. What…

A: Hypotheses can be constructed as: H0: µ=4.5 H1: µ≠4.5 Data collected from 5 college students is: 7,…

Q: 2. 10% of all college students volunteer their time. Is the percentage of college students who are…

A: As per our guidelines, we can solve only the first three subparts, Kindly repost the others for…

Q: e null and altermative hypothesis would be: • Ho:p 0.7 H:p 0.7 O Ho:p2 0.7 H:p 0.7

A: The null and alternative hypotheses are: Ho: p = 0.70Ho:p=0.70 Ha: p =\not 0.70Ha:p≠​0.70 This…

Q: Test the claim that the proportion of people who own cats is larger than 80% at the 0.025…

A:

Q: A researcher is trying to determine if nurses who complete a 12-week social activity program have…

A: Given that, A researcher is trying to determine if nurses who complete a 12-week social activity…

Q: a claim is made that the height of a police officer is 5 feet 11 inches. to test whether this claim…

A: Let us take the null hypothesis that the height of a police officer is 5 feet 11 inches H0:μ = 5'11…

Q: You intend to conduct an ANOVA with 7 groups in which each group will have the same number of…

A: There are 7 groups in which each group would have the sample number of subjects n=10, then the total…

Q: reporter has claimed that the majority of Colleges in the United States are Private For-Profit…

A:

Q: Would you favor spending more federal tax money on the arts? Of a random sample of n1 = 236 women,…

A: From the provided information,

Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.01…

A: Hypothesis  Ho: p=0.70 vs H1: p< 0.70 Given  Alpha= 0.01, pcap= 0.64, n=500

Q: Is there a difference in the proportion of individuals with food allergies between young children…

A: Denote p1 is true proportion of young children have food allergy and p2 is the true proportion of…

Q: A sample consists of the following n = 6 scores: 5, 5, 5, 8, 8, 8 What is the Z-score for the raw…

A:

Q: A software company is interested in improving customer satisfaction rate from the 50% currently…

A: The null and alternative hypothesis is defined as:

Q: A software company is interested in improving customer satisfaction rate from the 55% currently…

A: From the given information, The population proportion is, p=55%=0.55 The company sponsored a survey…

Q: in october 1947 the gallup organization surveyed 1000 adult americans and asked are you a total…

A: We have given thatn1 = 1000 , x1 = 378n2 = 1000 , x2 = 333Significance level (α) = 0.05Now,p̂1 =…

Q: A researcher investigates whether children exhibit aggressive acts after watching violent television…

A:

Q: Test the claim that the proportion of people who own cats is smaller than 70% at the 0.10…

A: The value of z-test statistic is,

Q: In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern pike over 20…

A: Given that, In a fishing lodge brochure, the lodge advertises that 75% of its guests catch northern…

Q: A software company is interested in improving customer satisfaction rate from the 75% currently…

A: Hypotheses: The null and the alternative hypotheses are, H0:p=0.75H1:p>0.75

Q: You are testing a claim about a population proportion of 0.23. Find the test statistic given the…

A: Given that, You are testing a claim about a population proportion of 0.23.  The sample results are…

Q: A software company is interested in improving customer satisfaction rate from the 62% currently…

A: Population proportion is 0.62 Sample proportion is 90/135 =0.6667

Q: The mayoral challenger claims that less than 30% of residents over the age of 25 have bachelor’s…

A:

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: There are two independent samples which are over 55 and under 25. We have to test whether the…

Q: The goals scored per game by a soccer team represent the first quartile for all teams in a league.…

A: The goals per game by a soccer team represents the first quartile for all teams in a league.

Q: A software company is interested in improving customer satisfaction rate from the 55% currently…

A:

Q: atistic? (Test the difference p1 − p2. Do not use rounded values. Round your final answer to two…

A: Let r1 be the number of women who responded yes in favor of spending more federal tax money on the…

Q: A software company is interested in improving customer satisfaction rate from the 75% currently…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.