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Homework 24: Problem 1 Previous Problem Problem List Next Problem (1 point) A random sample of 19 size AA batteries for toys yield a mean of 3.56 hours with standard deviation, 0.57 hours. (a) Find the critical value, t, for a 99% Cl. t* = (b) Find the margin of error for a 99% CI. Note: You can earn partial credit on this problem. Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining.
Homework 24: Problem 2 Previous Problem Problem List Next Problem (1 point) How much money do winners go home with from the television quiz show Jeopardy? To determine an answer, a random sample of winners was drawn and the amount of money each won was recorded and listed below. Estimate with 94% confidence the mean winning's for all the show's players. 18103 20596 31528 27606 28232 24323 27047 17198 18332 23104 25338 18287 16038 17850 19547 Upper confidence limit= Lower confidence limit= Note: In order to get credit for this problem all answers must be correct.
Homework 25: Problem 3 Previous Problem Problem List Next Problem (1 point) Dylan wants to determine a 95 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 he have to get a margin of error less than 0.04? Assume we have no prior estimate of the proportion and want a conservative choice for the sample size. [Round to the smallest integer that works.] n = Preview My Answers Submit Answers You have attempted this problem 0 times. You have unlimited attempts remaining. Email Professor