Statistics Homework Solutions
#8139
Null and Alternative Hypothesis
Multiple Choice:
All of the following are possible hypotheses surrounding nominal data except:
a. The percentage of people favoring brand A is greater than the percentage favoring brand B.
b. The average income of electricians exceeds the average income of carpenters.
c. The number of households with term life insurance exceeds the number with auto insurance.
d. There are more mountains over 20,000 feet high in Peru than there are in India.
If the cost to the company of making a Type I error is nearly the same as the cost of making a Type II error, then the value of a should be
a. small, 0.01 or less.
b. large, 0.10 or greater.
c. at or near 0.05.
d. anything that is convenient.
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