A large airline company called Absolute Airways monitors customer satisfaction by asking customers to rate their experience as a 1, 2, 3, 4, or 5, where a rating of 1 means "very poor" and 5 means "very good". The customers' ratings have a population mean of u = 4.17, with a population standard deviation of o = 1.18, Suppose that we will take a random sample of n= 6 customers' ratings. Let x represent the sample mean of the 6 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). H- = | (b) Find o- (the standard deviation of the sampling distribution of the sample mean).
A large airline company called Absolute Airways monitors customer satisfaction by asking customers to rate their experience as a 1, 2, 3, 4, or 5, where a rating of 1 means "very poor" and 5 means "very good". The customers' ratings have a population mean of u = 4.17, with a population standard deviation of o = 1.18, Suppose that we will take a random sample of n= 6 customers' ratings. Let x represent the sample mean of the 6 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). H- = | (b) Find o- (the standard deviation of the sampling distribution of the sample mean).
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:A large airline company called Absolute Airways monitors customer satisfaction by asking customers to rate their experience as a 1, 2, 3, 4, or 5, where a rating
of 1 means "very poor" and 5 means "very good". The customers' ratings have a population mean of u = 4.17, with a population standard deviation of o = 1.18.
Suppose that we will take a random sample of n = 6 customers' ratings. Let x represent the sample mean of the 6 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 u- (the mean of the sampling distribution of the sample mean).
= 0
(b) Find o- (the standard deviation of the sampling distribution of the sample mean).
?
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