A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Grand Sun Buffet is a large restaurant chain. After paying for a meal at Grand Sun Buffet, customers are asked to rate the quality of the food as a
1, 2, 3, 4, or 5, where a rating of 1 means "not good" and 5 means "excellent". The customers' ratings have a population mean of µ=3.88, with
a standard deviation of o=1.38. Suppose that we will take a random sample of n=8 customers' ratings. Let x represent the sample mean of the
8 customers' ratings. Consider the sampling distribution of the sample mean x.
Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, rounding if needed.
(a) Find H-
(the mean of the sampling distribution of the sample mean).
(b) Find o- (the standard deviation of the sampling distribution of the sample mean).
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Transcribed Image Text:Grand Sun Buffet is a large restaurant chain. After paying for a meal at Grand Sun Buffet, customers are asked to rate the quality of the food as a 1, 2, 3, 4, or 5, where a rating of 1 means "not good" and 5 means "excellent". The customers' ratings have a population mean of µ=3.88, with a standard deviation of o=1.38. Suppose that we will take a random sample of n=8 customers' ratings. Let x represent the sample mean of the 8 customers' ratings. Consider the sampling distribution of the sample mean x. Complete the following. Do not round any intermediate computations. Write your answers with two decimal places, rounding if needed. (a) Find H- (the mean of the sampling distribution of the sample mean). (b) Find o- (the standard deviation of the sampling distribution of the sample mean). Submit Assignment Continue O 2022 McGraw Hill LLC. Al Rights Reserved. Terms of Use | Privacy Center | Accessibility ? ? étv 6 MacBook Alr DII %23 80 F7 FB F9 F10 F11 F3 F5 24 4. 5 7 8. 9. * C0
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