Erin H.

A company's customer service department monitors the time it takes to resolve customer complaints. The resolution times are distributed with a mean of 35 minutes and a standard deviation of 8... more

Concerning two events A and B, the following probabilities are specified:P(A) = .4. P(B) = .3, and P(A [ B)  (this is to be a union symbol between A and B, the one that looks like a U) = .6. What... more

You have to purchase some kitchen cabinets. You realize that Cabinet X expenses $10 for every unit, obliges six square feet of floor space, and holds eight cubic feet of records. Cabinet Y costs... more

1)Rejecting the null hypothesis when the research hypothesis is false is a. effect size. b. power. c. a Type I error. d. a Type II error 2)Failing to reject the null hypothesis when the... more

A sports psychologist gave a questionnaire about healthy eating habits to randomly selected professional athletes. The results are displayed below. Using the α =.05 significance level, is there a... more

I have taken two samples of distance learners from two universities. the online survey was sent to all second year students (convenient sampling/census) Purpose is to assess their usage of learner... more