The marketing director of FireStone. com was concerned about the performance of their call center employees. He found that average call times were higher than industry average. The manager decides to invest in a program to train his call center employees i techniques to resolve customer concerns in a timely fashion. With the new training, the manager hoped that the call waiting times would reduce. In order to test if this had in fac happened, the manager randomly chose 15 call center employees and recorded the average call length (average time spent on a single customer call) for a one-week period before and after each of the 15 employees received training. Required:
State the appropriate hypothesis, run the appropriate test using SPSS and provide interpretation. Use α0 = 0.05

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step-by-step explanation:

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.