Ch8 Sec1: Problem 4 Previous Problem List Next 1 point) Cora wants to determine a 99...
Cora wants to determine a 80 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.03? [To find n, use the value p* = 1/2 for the sample proportion and the values for z* from a z-table or t-table.] [Round to the smallest integer that works.] n =
Kim wants to determine a 80 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.03? [To find n, use the value p* = 1/2 for the sample proportion and the values for z* from a z-table or t-table.] [Round to the smallest integer that works.] n =
Cora wants to determine a 95% confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.03?
Kim wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.02? [Note that you don't have an estimate for p*!] [Round to the smallest integer that works.] n =
WBWK5-Ch6: Problem 13 PrevUp Next (1 pt) Kim wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.02? (To find n, use the value p = 12 as an estimate.) Round to the smallest integer that works.] n = Preview Answers Submit Answers You have attempted this problem...
Kim wants to determine a 80 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must she have to get a margin of error less than 0.02? [If no estimate is known for p, let p^p^ = 0.5]
a)A university planner wants to determine the proportion of spring semester students who will attend summer school. Suppose the university would like a 0.90 probability that the sample proportion is within 0.195 or less of the population proportion.What is the smallest sample size to meet the required precision? (There is no estimation for the sample proportion.) (Enter an integer number.) b)A university planner wants to determine the proportion of spring semester students who will attend summer school. She surveys 31 current...
Previous Problem List Nex (1 point) Pedro wants to determine a 95 percent confidence interval for the true proportion of times he rols a 5 (using a fair, 6-sided die) How many rolls must Pedro make to get a margin of error within 05? [To find n use the guessed valuep 1/6 for the sample proportion and the values forrom a z-table or Hable] Preview My AnswersSubmit Answers You have amempted this problem 0 times You have 3 attempts remaining...
Confidence Interval Problem 18 Confidence Intervals: Problem 18 Previous Problem Problem List Next Problem (1 point) Chuck wants to determine a 98% confidence interval for the true proportion of times he rolls a 5 (using a fair, 6-sided die). How many rolls must Chuck make to get a margin of error less than or equal to .05? Chuck assumes that pis 1/6. n =
Find the smallest required sample size for the following problem. Assume p (with caret) is unknown. A manufacturer of kitchen utensils wishes to estimate the proportion of left handed people in the population. Obtain a sample size that will ensure a margin of error of at most 0.05 for a 99% confidence interval estimate of the proportion of left handed people in the population. n=______ (Round up to the nearest integer.)