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Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinner. During the summer beach season, they do not take reservationhs or accept "call ahead" seating. Management of the restaurant is concerned with the time a patron must wait before being seated for dinner. Listed below is the wait time in minutes for the 25 tables seated last Saturday night.
28 39 23 67 37 28 56 40 28 5051 45 44 65 61 27 24 61 34 4464 25 24 27 29 A A A A A A A
Explain why the times are a population?Find the mean and median of the times.Find the range and the standard deviation of the time?
Can we conclude a difference in voting patterns for men vs. women? YES or NO (circle one)
A geological study indicates that wells drilled in a certain area should strike water with probability 0.2. Find the probability that:
Half of the 1000 emloyees were involved in some type of exercise. What is the probability that an employee will have a cold next year?
Test whether there is a difference in the mean of times men and women and determine the p-value.
Suppose we have the following information from a single regression: What is the coefficient of determination? What is the correlation coefficient?
Computing from a large sample, one finds the 95% confidence interval for 956; to be {6.8, 14.2}. Based on this information alone, determine the 90% confidence interval for 956
We wish to compare the average sales in two shops, to see if the population mean of the first one is higher than the second one. One shop had 100 sales averaging $94, with a standard deviation of $40.
For each lettered part, a through c, examine the two given sets of numbers. Without doing any calculations, decide which set has the larger standard deviation and explain why. Then check by finding the standard deviation by hand .
Discuss how a t test for a dependent variable can be of great value in applying a new approach to the treatment of aggressive behavior to a small group of students.
Lets say a business has account receivables per customer of $60.54. There was a random sampling of 19 accounts that revealed a sample mean of $73.55 and a sample standard deviation of $19.29.
The probability that the daily demand at this store is at least one and at most three is:
According to the regional bar assoc., 60% of people who take the bar exam pass. Find the approximate probability that at least 61% of 200 randomly selected people taking the bar will pass. Round to three decimal places as needed.
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