A certain department store is interested in estimating the average amountits credit card customers spent on their first visit. Fifteen credit cardaccounts were randomly sampled and analyzed with the following results:x= 2,525 pesos and s? =20,000Construct a 95% confidence interval for the average amount its credit cardcustomers spent in the store.A2,384.58 What is the margin of error for the estimation of the population meanwhen o=20, n= 49, x = 50.3 at 95% confidence level?(A 5.50в 5.605.70D) 5.80Question 10Determine the required sample size if you want to be 99% confident thatthe sample mean is within 2 units of the population mean given thepopulation standard deviation of 5.8. Assume the population is normallydistributed.A) at most 56B at least 56at most 65at most 65

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A certain department store is interested in estimating the average amount its credit card customers spent on their first visit. Fifteen credit card accounts were randomly sampled and analyzed with the following results: x= 2,525 pesos and s? =20,000 Construct a 95% confidence interval for the average amount its credit card customers spent in the store. A 2,384.58

A certain department store is interested in estimating the average amount its credit card customers spent on their first visit. Fifteen credit card accounts were randomly sampled and analyzed with the following results: x= 2,525 pesos and s? =20,000 Construct a 95% confidence interval for the average amount its credit card customers spent in the store. A 2,384.58

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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