A spreadsheet is an example of an electronic matrix.

Which situation identifies when to use pie charts and/or bar charts?

A) You want to describe a single set of data.
B) Your data is nominal.
C) You want to show the number or the percentage of individuals in each category.
D) All of these choices are true.

A random sample of 64 SAT scores of students applying for merit scholarships showed an average of 1400 with a standard deviation of 240.If we want to provide a 95% confidence interval for the population mean SAT score, the degrees of freedom for reading the t value is

A) 60.
B) 61.
C) 62.
D) 63.

If a single fair die is rolled,find the probability of a 5 given that the number rolled is odd.

A) $\frac{1}{6}$
B) $\frac{1}{3}$
C) $\frac{2}{3}$
D) $\frac{1}{2}$
E) 1

Solve the following multiplication and division problems by moving the decimal point to the right or left.
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a.$23.00 ¸ 100 = ________________
b.7.45 yards ´ 1,000 = ________________
c.6,391 pints ¸ 1,000 = ________________
d.$26.53 ´ 10,000 = ________________
e.8.58 gallons ´ 100 = ________________

Murphy's annual income has increased by 10% per year for the last 8 years. If Murphy's annual income is now $72,596, what was it 8 years ago?

A) $14,519
B) $33,867
C) $41,587
D) $51,922
E) $58,077

The general manager of a chain of fast food chicken restaurants wants to determine how effective their promotional campaigns are. In these campaigns "20% off" coupons are widely distributed. These coupons are only valid for one week. To examine their effectiveness, the executive records the daily gross sales (in $1,000s) in one restaurant during the campaign and during the week after the campaign ends. The data is shown below. Can they infer at the 5% significance level that sales increase during the campaign?
Use the Data Analysis software if you prefer.
Test statistic = ______________
Critical Value(s) = ______________
Conclusion: ______________
Interpretation: __________________________________________
Estimate with 95% confidence the mean difference.
______________

Marketing segmentation separates consumers of a product into different groups in such a way that members of each group are ____________________ and there are differences between ____________________.