Comment on appropriateness of t procedures for given data

Reference no: EM131423689

Drive-thru speaker clarity. QSRMagazine.com surveyed 689 adults on their drive-thru window experiences at quick-service restaurants.24 One question was "Thinking about your most recent drive-thru experience, please rate how satisfied you were with the clarity of communication through the speaker." Responses ranged from "Very Dissatisfied (1)" to "Very Satisfied (5)." The following table breaks down the responses according to gender:

	Ratings
Gender	1	2	3	4	5
Female	5	44	48	183	188
Male	5	29	30	91	66

(a) Report the means and standard deviations of the rating for the male and female participants separately.

(b) Comment on the appropriateness of t procedures for these data.

(c) Test whether males and females are, on average, equally satisfied with speaker clarity. Use a two-sided alternative hypothesis and a significance level of 5%.

(d) Construct a 95% confidence interval for the difference in average satisfaction.

(e) Given the coarseness of the rating, the owner of the Sir Beef-a-lot chain considers only a difference in the means of at least 0.25 units as meaningful. Based on your results in parts (c) and (d), what would you tell this owner?

Reference no: EM131423689

Questions Cloud

Wisconsin sued adidas over the severance pay issue, : The University of Wisconsin sued Adidas over the severance pay issue, and in March 2013 Penn State turned up the heat by suspending its contract with the firm, giving it 60 days to rectify the situation. What happened?

Management of foods in maintaining safe environment : Edie is more likely to win a negligence case as Foods is responsible for duty of care towards its customers. Here, Foods had violated the duty of care by not maintaining proper tiles which would sustain water flow. In the above case, the plaintiff Ed..

How do you account for the appeal and spread of christianity : How do you account for the appeal and spread of Christianity and Islam?

What is the goal for collaborating with the leader : What is the goal for collaborating with the leader to interpret his or her learning needs? How will you help the leader evaluate his or her learning needs (or performance gaps) by applying the "use of self" framework

Comment on appropriateness of t procedures for given data : Given the coarseness of the rating, the owner of the Sir Beef-a-lot chain considers only a difference in the means of at least 0.25 units as meaningful.

Issues in the natural human world based on articulating : How does this reference for a journal article need to be changed to be properly formatted according to APA style - issues in the natural human world based on articulating one's identity in a global context.

Problem regarding the monopolistic market : Consider the market for scooters. Suppose it is a (single-price)monopolistic market. The market demand for scooters is given by the equation PD(Q) = 100-8Q. The firm faces costs given by the total cost function TC(Q)=3Q² + 34Q +10 and marginal co..

Describe the checks and balances in the design process : What is included in the establishment of a "functional" baseline? "allocated" baseline? "product" baseline? Why is baseline management important?

Marginal revenue and marginal cost curves : Suppose that a monopoly faces a demand curve P=30-2Q and its marginal cost curve is MC=Q. (a) Plot the average revenue, marginal revenue and marginal cost curves for this monopoly.

User Account

All Pages