Answered step by step
Verified Expert Solution
Question
1 Approved Answer
Suppose the condence interval [0.6358, 0.?532) represents the proportion of Skyline College students who say math is their favorite subject. a. Based on the confidence
Suppose the condence interval [0.6358, 0.?532) represents the proportion of Skyline College students who say math is their favorite subject. a. Based on the confidence interval, is it likely 605-5 of Skyline College students sayr math is their favorite subject? '12:? Yes, 0.60 is not contained in the interval C3 No, 0.60 is not contained in the interval '3' Yes, all the interval values are greater than 0.60 b. Based on the confidence interval, does it appear that more than 6035 of Skyline College students say math is their favorite subject? '12:? Yes, 0.60 is not contained in the interval '3' No, 0.60 is not contained in the interval '3' Yes, all the interval values are greater than 0.60 c. Based on the confidence interval, does it appear that fewer than 605:\" of Skyline College students say.' math is their favorite subject? '12:? Yes, all the interval values are greater than 0.60 '12:? No, 0.60 is not contained in the interval '3' No, all the interval values are greater than 0.60 44 A smart phone manufacturer is interested in constructing a 90% confidence interval for the proportion of smart phones that break before the warranty expires. 93 of the 1620 randomly selected smart phones broke before the warranty expired. Round answers to 4 decimal places where possible. a. With 90% confidence the proportion of all smart phones that break before the warranty expires is between and b. If many groups of 1620 randomly selected smart phones are selected, then a different confidence interval would be produced for each group. About percent of these confidence intervals will contain the true population proportion of all smart phones that break before the warranty expires and about percent will not contain the true population proportion. Hints45 > Assume that a sample is used to estimate a population proportion p. Find the 95% confidence interval for a sample of size 275 with 73 successes. Enter your answer as an open-interval (i.e., parentheses) using decimals (not percents) accurate to three decimal places. C.I. =You want to obtain a sample to estimate a population proportion. At this point in time, you have no reasonable preliminary estimation for the population proportion. You would like to be 95% confident that you estimate is within 3.59% of the true population proportion. How large of a sample size is required? Video E' [+] n: 47 You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 41.4 dollars. You would like to be 98% confident that your estimate is within 1 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? Video ' [+] n=
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started