An auditor for a hardware store chain wished to compare the
efficiency of two different auditing techniques. To do this he
selected a sample of nine store accounts and applied auditing
techniques A and B to each of the nine accounts selected. The
number of errors found in each of techniques A and B is listed in
the table below:
Errors in A | Errors in B |
27 | 13 |
30 | 19 |
28 | 21 |
30 | 19 |
34 | 36 |
32 | 27 |
31 | 31 |
22 | 23 |
27 | 32 |
Does the data provide sufficient evidence to conclude that the
number of errors in auditing technique A is fewer than the number
of errors in auditing technique B at the 0.01 level of
significance? Select the [Rejection Region, Decision of Reject
(RH0) or Failure to Reject (FRH0)]. (Hint:
the samples are dependent)
a) [z < -2.9 and -z < -2.9, FRH0]
b) [t < -2.9, FRH0]
c) [-t < 2.9 and t < 2.9, RH0]
d) [t > 2.9, FRH0]
e) [t < -2.9 or -t < -2.9, RH0]
f) None of the above
The statistical software output for this problem is:
Hence,
[t < -2.9, FRH0]
Option B is correct.
An auditor for a hardware store chain wished to compare the efficiency of two different auditing...
An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below: Errors in A Errors in B 27 13 30 19 28 21 30 19 34 36 32 27 31 31...
An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below; ors in A Errors in B 45 48 46 48 52 50 49 40 45 31 37 39 37 54...
An auditor for a hardware store chain wished to compare the efficiency of two different auditing techniques. To do this he selected a sample of nine store accounts and applied auditing techniques A and B to each of the nine accounts selected. The number of errors found in each of techniques A and B is listed in the table below: Errors in A Errors in B 45 31 48 37 46 39 48 37 52 54 50 45 49 49...
1. A random sample of 30 boxes of bolts was purchased at a local hardware store and the average number of bolts per box was 52. It is known that the population standard deviation of bolts per box is 6 bolts. a Is this a z or t-distribution? Why? b. Find and interpret a 95% confidence interval to estimate the average number of bolts per box for all boxes in the population. Round to 3 decimal places. C What would...
The accounts manager of a large retail store is investigating the number of days that customers take to pay their invoices, the normal period being 30 days. An inspection of the payment records of 30 randomly- selected customers, revealed the following payment pattern. 35 42 34 27 32 30 24 33 27 36 30 38 26 32 28 28 39 23 17 20 31 29 30 24 25 29 31 30 19 34 1.1 Using 7 classes, each of width...
Pina Colada Hardware Store Inc. completed the following merchandising transactions in the month of May 2018. At the beginning of May, Pina Colada’s ledger showed Cash of $8,800 and Common Shares of $8,800. May 1 Purchased merchandise on account from Hilton Wholesale Supply for $8,800, terms 2/10, n/30. 2 Sold merchandise on account for $4,400, terms 3/10, n/30. The cost of the merchandise sold was $3,030. 5 Received credit from Hilton Wholesale Supply for merchandise returned $300. 9 Received collections...
Bridgeport Hardware Store Inc. completed the following merchandising transactions in the month of May 2018. At the beginning of May, Bridgeport’s ledger showed Cash of $7,500 and Common Shares of $7,500. Post the transactions to T accounts. (Post entries in the order of journal entries presented in the question.) May 1 Purchased merchandise on account from Hilton Wholesale Supply for $7,500, terms 2/10, n/30. 2 Sold merchandise on account for $4,300, terms 3/10, n/30. The cost of the merchandise sold...
show work plz ruckload of 5000 electric drills. Exercise 7.2: The warehouse for a hardware store chain has just received a t Before accepting the shipment, the purchasing manager in for testing. He intend if the mean consumption for the sample is greater than 300 watts as listed on the product sists that a sample of the drills be randomly selected s to measure the maximum power consumption of each drill. He will reject the shipment ipment is the manufacturer's...
Ayayai Hardware Store Inc. completed the following merchandising transactions in the month of May 2018. At the beginning of May, Ayayai's ledger showed Cash of $7,600 and Common Shares of $7,600. May 1 Purchased merchandise on account from Hilton Wholesale Supply for $7,600, terms 2/10, n/30. 2 Sold merchandise on account for $4,800, terms 3/10, n/30. The cost of the merchandise sold was $3,100. 5 Received credit from Hilton Wholesale Supply for merchandise returned $200. 9 Received collections in full,...
Crane Hardware Store completed the following merchandising transactions in the month of May. At the beginning of May, Cranes’ ledger showed Cash of $8,300 and Common Stock of $8,300. A. Journalize the above May transactions using a perpetual system. B. Post the transactions to T-accounts. Be sure to enter the beginning cash and common stock balances. C. Prepare an income statement, through Gross Profit for the month of May. D. Calculate the Profit Margin and Gross Profit Rate. May 1...