A sample of 500 luxury hotels in the Northeast had an average room rate of $325 per night. Contruct a 99% confidence interval to estimate the mean room rate of luxury hotels in the Northeast assuming that the population standard deviation is $35. In the answer box below, enter the upper limit of the interval. Round your answer to the nearest cent (two decimal places.) Type your answer here

A successful basketball player has a height of 6 feet 11 ​inches, or 211 cm. Based on statistics from a data​ set, his height converts to the z score of 5.17. How many standard deviations is his height above the​ mean?

USA Today reported that about 20% of all people In the United States are Illiterate. Suppose you take eleven people at random off a city street. P USE SALT (a) Make a histogram showing the probability distribution of the number of illiterate people out of the eleven people in the sample. 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 2 3 4 5 7. 8 9 10 11 0 1 2 3 4 5 6 78 9 10 11 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 0. 0 1 2 3 4 5 6 7 8 9 10 11 0 1 2 3 45 6 7 8 9 10 11 (b) Find the mean and standard deviation of this probability distribution. (Round your standard deviation to two decimal places.) people people Find the expected number of people in this sample who are illiterate. people

An engineer wishes to determine the width of a particular electronic component. If she knows that the standard deviation is 1.3 mm, how many of these components should she consider to be 90% sure of knowing the mean will be within +0.4 mm? O 18 O 13 29 49

A survey was conducted that asked 1013 people how many books they had read in the past year. Results indicated that x=10.3 books and s=16.6books. Construct a 90​% confidence interval for the mean number of books people read. Interpret the interval.   Construct a 90​% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice. ​(Use ascending order. Round to two decimal places as​ needed.)   A. There is a 90​% probability that the true mean number of books read is between ___ and ____   B. There is 90​% confidence that the population mean number of books read is between ___ and ____.   C. If repeated samples are​ taken, 90​% of them will have a sample mean between ___ and ___.

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write your answers legibly and follow the formulas indicated on the picture. thank you !

A random sample of 800 home owners in a particular city found 208 home owners who had a swimming pool in their backyard. Find a 95% confidence interval for the true percent of home owners in this city who have a swimming pool in their backyard. Express your results to the nearest hundredth of a percent. Answer: ☐ t to %

A survey was conducted that asked 963 people how many books they had read in the past year. Results indicated that x=14.7 books and s=17.8  books. Construct a 90​% confidence interval for the mean number of books people read. Interpret the interval.Construct a 90​% confidence interval for the mean number of books people read and interpret the result. Select the correct choice below and fill in the answer boxes to complete your choice.​(Use ascending order. Round to two decimal places as​ needed.)A. If repeated samples are​ taken, 90​% of them will have a sample mean between ___ and ____                                B. There is a 90​% probability that the true mean number of books read is between ____ and ___                             C. There is a 90​% confidence that the population mean number of books read is between ___ and ___