If n = 230 and X = 184, construct a 99% confidence interval for the population proportion, p.Give your answers to three decimals

Q: Ninety-four percent of students said that cash is their top choice for a graduation gift. If 75…

A: It is given that sample size (n) is 75and the sample proportion value is 0.94.

Q: f n=450 and X = 360, construct a 99% confidence interval.

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Q: A poll of n = 500 randomly selected elementary school students resulted in 110 of them stating…

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Q: Two different surveys will be conducted to estimate the mean salary of employees who have taken a…

A: The confidence interval inversely depends on the sample size. The formula for the confidence…

Q: Police Department A and Department B each use the same set of data about the number of safety…

A: Given that  Department A calculates an interval of 12% to 15%, Department B calculates an interval…

Q: If you are told only that you scored in the 80th percentile, do you know from that description…

A: p-th percentile means that there are p% of the values are less than that value. Here, you scored in…

Q: A poll of 1060 adults in a country was conducted by telephone. Of those surveyed, 169 had…

A: The sample size is 1060 and number of success is 169.

Q: You have a dataset with a mean of 2, median of 3 and variance of 9.  What is the skewness?

A: Given that  Mean = 2 , Median = 3 , Variance = 9

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: If [330, 610] is a confidence interval for the population mean. Find the margin of eror. Select one:…

A: The upper limit of the confidence interval is (U) = 610 The lower limit of the confidence interval…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Here are summary statistics for randomly selected weights of newborn girls: n = 250, x= 32.4 hg, s=…

A: The following information has been provided: The sample size is n=20. The sample mean is x¯=32.5.…

Q: Kindly tell what is confidence interval in stats thanks.

A: An essential idea in statistics is a confidence interval (CI), which provides a range that, with a…

Q: If n = 41, ã=30, and s = 6, construct a confidence interval at a 80% confidence level.

A: It is given that Sample size n = 41 Sample mean = 30 Sample SD s = 6 The critical value of t at df =…

Q: If n = 530 and X = 424, construct a 99% confidence interval for the population proportion, p. Give…

A:

Q: If n = 220 and X = 176, construct a 95% confidence interval for the population proportion, p. Give…

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Q: Mark each statement TRUE or FALSE. For these problems, assume that to estimate average time spent…

A: It is given that the sample size is 10.

Q: If n=400 and X=100​, construct a 99​% confidence interval estimate for the population proportion

A: According to the given information, we have n = 400 X = 100 Confidence level = 99%

Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a survey…

A: The confidence interval proportion is obtained below: From the given information, the proportion…

Q: Use the given data to construct a confidence interval of the requested level. x = 98, n = 223,…

A: Given information: x=98, n=223Confidence level=99% p^=xn=98223=0.4395 α2=1-0.992=0.005 Use the excel…

Q: find tc for a 95% confidence level when the sample size is 6.

A: level of significance, alpha = 0.05from standard normal table, two tailed t alpha/2 with n-1 = 6 d.f…

Q: Out of 57 high school female athletes, data was collected on how much they were able to bench press.…

A: Given data Mean = 79.9 Q1=70 Q2=80 Q3=90

Q: If n=470 and p̂ (p-hat) = 0.65, construct a 95% confidence interval.

A: From the provided information, Sample size (n) = 470  p̂ (p-hat) = 0.65 Confidence level = 95%

Q: If a 95% Confidence for the Population Proportion is (0.56, 0.78), fınd its Margin of Error.

A: