A(n) ________ in ANOVA describes a category within the factor of interest.
A) error rate
B) level
C) block
D) factor
Q. 2With systematic sampling, there is the risk that the person selecting the next member for the sample from the population may be biased in his or her choice.
Indicate whether the statement is true or false
Q. 3You have been assigned to test the hypothesis that the average number of hours per week that an American works is higher than the average number of hours per week that a Swede works.
The following data summarizes the sample statistics for the number of hours worked per week for workers in each country. Assume that the population variances are unequal. American SwedeSample mean 32.7 hours 28.2 hoursSample size 15 12Sample standard deviation 5.1 hours 6.0 hoursIf Population 1 is defined as American workers and Population 2 is defined as Swedish workers, the degrees of freedom for this hypothesis test are ________.A) 21
B) 25
C) 26
D) 27
Q. 4The values of the coefficient of determination range between -1.0 and +1.0.
Indicate whether the statement is true or false
Q. 5Excel's random sampling tool uses sampling with replacement.
Indicate whether the statement is true or false
Q. 6Zappos is an online retailer based in Nevada and employs 1,300 employees. One of their competitors, Amazon.com, would like to test the hypothesis that the average age of a Zappos employee is less than 36 years old.
A random sample of 22 Zappos employees was found to have an average age of 33.9 years. The standard deviation for this sample was 4.1 years. Amazon would like to set = 0.025. The critical value for this hypothesis test would be ________.A) 1.282
B) 1.771
C) 2.080
D) 2.977
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