Select one answer 10 points Suppose we take two different

Last updated: 3/22/2024

Select one answer 10 points Suppose we take two different random samples from the same population of test scores The population mean and standard deviation are unknown The first sample has 25 data values The second sample has 64 data values Then we construct a 95 confidence interval for each sample to estimate the population mean Which confidence interval will have greater precision smaller width for estimating the population mean A O The confidence interval based on the sample of 64 data values will be more precise B Both confidence intervals will have the same precision C O The confidence interval based on the sample of 25 data values will be more precise Question 8 Students in a statistics class take a random sample of 100 students at their college and record how many units each student is enrolled in The students compute a 90 confidence interval for the mean number of units for students at their college and get 11 93 12 47 Select one answer 10 points Next the students calculate a 95 confidence interval As the confidence level increases which of the following will happen to the interval width A O Decrease B Increase C Stay the same