We wish to estimate what percent of adult residents in a certain county are parents. Out of 300 adult residents sampled, 36 had kids. Based on this , construct a 99% confidence interval for the proportion p of adult residents who are parents in this county. Express your answer in tri-inequality form. Give your answers as decimals to three places.

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 400…

A: The objective of this question is to construct a 95% confidence interval for the proportion of adult…

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 300…

A: Critical Value: In test of hypotheses, Critical Values are the cut-off values that provide with the…

Q: 3. A survey of 2,950 Filipinos showed that 2,655 trust the Supreme Court decisions on legal issues.…

A: Let X be the number of trust the supreme court decision on legal issues  n be the sample size  Given…

Q: A national polling organization surveyed 1000 Americans and found that 350 admitted to being guilty…

A: Given: x=350 n=1000 p^=xn=3501000=0.35

Q: he confidence interval was (73, 83) What was the point estimate? What was the margin of error?

A: Given: Lower limit =73 Upper limit =83 The point estimate can be calculated as: Point estimate…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 300…

A: It is given that sample size (n) is 300 and x is 15.

Q: According to a recent survey of 1479 voters, 39% feel that the president is doing an acceptable job.…

A: A recent survey of 1479 voters are taken of which 39% feel the president is doing an acceptable job.…

Q: A new fertilizer was applied to the soil of 276 bean plants. 24% showed increased growth. Find the…

A: Given Data: p=0.24 n=276   z-value corresponding to 95% Confidence level=1.96

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 400…

A: Solution: It is given here:

Q: e confidence interval for a population mean is (240.53, 240.79). What are the sample mean and the…

A: The confidence interval for a population mean is (240.53, 240.79)WE HAVE TO FIND OUT THE MEAN AND…

Q: The FDA claims that the mean nicotine content exceeds 31.0 milligrams for this brand of cigarette,…

A: It is given that that the confidence interval at a 90% level of significance is (26.79, 30.10). And…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 300…

A: Given data,n=300x=75p=xn=75300=0.25z-value at 95% confidence is Zc=1.96

Q: n a recent poll, 290 people were asked if they liked dogs, and 85% said they did. Find the Margin of…

A: It is given that the sample size (n) is 290 and the p hat is 0.85.

Q: What type of educational background do CEOs have? In one survey, 344 CEOs of medium and large…

A:

Q: A poll of 1785 U.S. adults found that 900 U.S. adults, or 50.42% regularly used Facebook as a news…

A: Given that: Sample proportion, p^=0.5042 sample size (n) =900

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: In a study conducted to estimate the true proportion of people that have been to a music festival,…

A: A sample of 114 out of 385 people randomly sampled have been to the music festival.

Q: An epidemiologist wants to estimate the proportion of residents in her city that carry the Hepatatis…

A:

Q: Express the confidence interval 85.8 % ± 3 % in interval form. Write you answer in DECIMAL form.…

A: From the provided information, Confidence interval is 85.8% ± 3%

Q: Express the confidence interval (77.4 % , 89.2 % ) in the form of p ± ME.

A: GivenConfidence Interval(77.4% , 89.2%)

Q: lculating the confidence interval.

A: x Freq 1 3 2 5 3 19 4 7 5 6 Total 40

Q: The confidence interval for a population porportion is (0.57, 0.73). What the the sample proportion…

A: Given the confidence interval for a population porportion is (0.57, 0.73).That is, lower confidence…

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 600…

A: Solution

Q: A researcher wanted to compare the percentages of men and women who play the lottery.  They randomly…

A:

Q: In a survey of 3361 adults in a country, 44% believe the economy is getting better. Three weeks…

A: Given Information: In a survey of 3361 adults in a country, 44% believe the economy is getting…

Q: 9. A survey of 280 homeless persons showed that 63 were veterans. Construct a 90% confidence…

A: In a survey of 280 homeless persons showed that 63 were veterans.

Q: For a confidence level of 99% with a sample size of 22, find the t-score. Did not see how to work…

A: The provided information is:

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 100…

A: Solution a)  0.156<p<0.324 b)  p=0.240±0.084

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 600…

A: Number of adult residents (n) = 600 Number of adults that has kids (x) = 102 Find z-critical value:…

Q: Use the confidence interval to find the margin of error and the sample mean. (1.59,1.89)

A: Given data,Lower limit=1.59Upper limit=1.89Margin of error=?

Q: A Pew Research Center survey of 1,857 internet users found that 1,124 people agreed that online…

A: Given: CI=95% p^=11241875=0.599 n=1875

Q: A poll showed that 385 out of 700 adults said they would be interested in traveling to outer space…

A: This question requires accurate results, Hence I will use excel to solve this question.…

Q: A national polling organization surveyed 1000 Americans and found that 350 admitted to being guilty…

A: Given values, n = 1000 x = 350 Significance level = 0.10 Calculate z

Q: You want to estimate the percentage of statistics students who get grades of C or better. How many…

A: Obtain the sample size. The formula of sample size is, Obtain the area of probability in the right…