- Construct a 99% confidence interval for the population mean using the t-distribution c=.99, x=14.9, s=2.0, n=7
- In a survey of 649 males ages 18-64, 395 say they have gone to the dentist in the past year. Construct 90% & and 95% confidence intervals for the population proportion.
- People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with99?%?confidence? Initial survey results indicate that? =11.2books.
- Use the normal distribution of fish lengths for which the mean is 99 inches and the standard deviation is 55 inches. Assume the variable x is normally distributed.
(a) What percent of the fish are longer than 10 ?inches?
(b) If 500 fish are randomly? selected, about how many would you expect to be shorter than 66 ?inches?
5. Construct the confidence interval for the population mean ?. c=0.950.95?, x equals 15.9, ?=4.04.0?, and n=75
ScholarMatic: Explanation & Answer
Your ready answer from a verified tutor is just a click away for as little as $14.99
Click Order Now to get 100% Original Answer Customized to your instructions!
