The credit manager of a large department store claims that the mean balance for the store’s charge account customers is R3,280. An independent auditor selects a random sample of 18 accounts and finds a mean balance of R4,090.64 and a standard deviation of R1,470. If the manager’s claim is not supported by these data, the auditor intends to examine all charge account balances. If the population of account balances is assumed to be approximately normally distributed, what action should the auditor take?
The credit manager of a large department store claims that the mean balance for the store’s charge account customers is R3,280. An independent auditor selects a random sample of 18 accounts and finds a mean balance of R4,090.64 and a standard deviation of R1,470. If the manager’s claim is not supported by these data, the auditor intends to examine all charge account balances. If the population of account balances is assumed to be approximately normally distributed, what action should the auditor take?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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