You are the auditor of Jexel, an auto air-conditioner service and repair company, and you have decided to use the mean-per-unit method to test the existence and gross valuation of recorded accounts receivable. The client's records include 9700 accounts with a total book value of $1210,000. You decide to use tolerable misstatement of $147000, an incorrect acceptance risk of 10 percent and an incorrect rejection risk of 50 percent. Using Excel, you estimated the standard deviation of the population as $32 Use Egue 9:8 to obtain the incorrect acceptance and rejection coefficients Required: a. Determine the sample size b. Assume you tested the sample and got the following results. The mean audited value of the accounts sampled was $116. Assuming that the standard deviation of the sample's audited dye is also $32, what is the projected misstatement for the population? c. Assuming that the standard deviation of the samples audited value is $27 what is the projected misstatement for the population Assume you tested the sample and got the following results: The mean audited value of the accounts sampled was $122. Assuming that the standard deviation of the sample's audited value is also $25, what is the projected misstatement for the population? What is the confidence interval? Is the account materially misstated? Projected miststatement Confidence interval Materially misstated? Will you accept the account? 5 90.986 ($57802 to $124496) INo Yes