TABLE 5-8
Two different designs on a new line of winter jackets for the coming winter are
available for your manufacturing plants. Your profit (in thousands of dollars) will
depend on the taste of the consumers when winter arrives. The probability of the three
possible different tastes of the consumers and the corresponding profits are presented in
the following table.
Referring to Table 5-8, what is the total standard deviation of the profit if you increase
the shift of your production lines and choose to produce both designs?
TABLE 12-5
Four surgical procedures currently are used to install pacemakers. If the patient does not
need to return for follow-up surgery, the operation is called a “clear” operation. A heart
center wants to compare the proportion of clear operations for the 4 procedures, and
collects the following numbers of patients from their own records:
They will use this information to test for a difference among the proportion of clear
operations using a chi-square test with a level of significance of 0.05.
Referring to Table 12-5, what is the value of the critical range for the Marascuilo
procedure to test for the difference in proportions between procedure A and procedure
D using a 0.05 level of significance?
TABLE 16-4
The number of cases of merlot wine sold by a Paso Robles winery in an 8-year period
follows.
Referring to Table 16-4, exponential smoothing with a weight or smoothing constant of
0.2 will be used to smooth the wine sales. The value of E4, the smoothed value for 2008
is ________.
TABLE 2-12
The table below contains the opinions of a sample of 200 people broken down by
gender about the latest congressional plan to eliminate anti-trust exemptions for
professional baseball.
Referring to Table 2-12, ________ percent of the 200 were not neutral.
Suppose Z has a standard normal distribution with a mean of 0 and standard deviation
of 1. The probability that Z values are larger than ________ is 0.6985.
TABLE 8-10
A sales and marketing management magazine conducted a survey on salespeople
cheating on their expense reports and other unethical conduct. In the survey on 200
managers, 58% of the managers have caught salespeople cheating on an expense report,
50% have caught salespeople working a second job on company time, 22% have caught
salespeople listing a ‘strip bar” as a restaurant on an expense report, and 19% have
caught salespeople giving a kickback to a customer.
Referring to Table 8-10, construct a 95% confidence interval estimate of the population
proportion of managers who have caught salespeople listing a ‘strip bar” as a restaurant
on an expense report.
In a game called Taxation and Evasion, a player rolls a pair of dice. If on any turn the
sum is 7, 11, or 12, the player gets audited. Otherwise, she avoids taxes. Suppose a
player takes 5 turns at rolling the dice. The probability that she gets audited at least
once is ________.