Question 12 of 17
1.0/ 1.0 Points
Accepted characters
: numbers, decimal point markers (period or comma), sign indicators (-), spaces
(e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).
NOTE:
For scientific
notation, a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
Are America's top chief executive officers (CEOs) really worth all that money? One way to answer this
question is to look at the annual company percentage increase in revenue versus the CEO's annual
percentage salary increase in that same company. Suppose that a random sample of companies yielded
the following data:
Do these data indicate that the population mean percentage increase in corporate revenue is greater
than the population mean percentage increase in CEO salary? Use a 5% level of significance. What is
the test value that you would use to conduct this test of hypothesis? Place your answer, rounded to 3
decimal places, in the blank. For example, 2.345 would be a legitimate entry.
1.010

Question 13 of 17
0.0/ 1.0 Points
Accepted characters
: numbers, decimal point markers (period or comma), sign indicators (-), spaces
(e.g., as thousands separator, 5 000), "E" or "e" (used in scientific notation).
NOTE:
For scientific notation,
a period MUST be used as the decimal point marker.
Complex numbers should be in the form (a + bi) where "a" and "b" need to have explicitly stated values.
For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
Q-Mart is interested in comparing its male and female customers. Q-Mart would like to know if the amount
of money spent by its female charge customers differs, on average, from the amount spent by its male
charge customers. To answer this question, an analyst collected random samples of 25 female customers
and 22 male customers.
Based on these samples, on average, the 25 women charge customers spent $102.23 and the 22 men
charge customers spent $86.46. Moreover, the sample standard deviation of the amount charged by the
25 women was $93.393, and the sample standard deviation of the amount charged by the 22 men was
$59.695.
Suppose, using a 10% level of significance, you wish to know if there is sufficient evidence for Q-Mart to
conclude that, on average, the amount spent by women charge customers differs from the amount spent
by men charge customers. That is suppose you wish to test
H
0
:
versus H
1
Assuming that the amounts spent by male and female charge customers at Q-Mart are normally
distributed, based on the procedure advocated by Bluman, what is the test value that you would use to
conduct this test of hypothesis? Place your answer, rounded to 3 decimal places, in the blank. For
example, 0.123 would be a legitimate entry.
0.679
:

Part 6 of 8 -
3.0/ 3.0 Points