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 |
40 | 41 |
45 | 50 |
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 0.1 level of significance?
Select the [Alternative Hypothesis, Value of the Test Statistic].
(Hint: the samples are dependent)
a) [A < B, 1.976]
b) [μD = 0, 1.976]
c) [μD < 0, 1.976]
d) [μD < μ1, 1.976]
e) [μD ≤ 0, 1.976]
f) None of the above
Part 2
Solid fats are more likely to raise blood cholesterol levels than liquid fats. Suppose a nutritionist analyzed the percentage of saturated fat for a sample of 6 brands of stick margarine (solid fat) and for a sample of 6 brands of liquid margarine and obtained the following results:
We want to determine if there a significant difference in the average amount of saturated fat in solid and liquid fats. What is the test statistic? (assume the population data is normally distributed)
a) z = 37.765
b) z = 37.265
c) t = 37.265
d) t = 37.765
e) t = 24.951
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; 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 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: Errors in A Errors in B 27 13 30 19 28 21 30 19 34 36 32 27 31 31...
The smallest chemical units of matter are atoms b) molecules c) protons d) neutrons e) electrons . Which of the following would have the largest size? a) an atom b) a molecule c) a proton d) a neutron e) an electron 3. Isotopes of an element differ in the number of a) protons in the nucleus b) electrons in the nucleus © neutrons in the nucleus d) electron clouds e) energy levels they contain 4. VO The atomic number represents...