The data in the accompanying table gives the food segment (burger, chicken, pizza, or sandwich) and average sales per unit ($ thousands) for each of 28 quick-service brands. Complete (a) through (d) below. Click here to view the data table a. At the 0.05 level of significance, is there evidence of a difference in the mean U.S. average sales per unit ($ thousands) among the food segments? Determine the hypotheses. Choose the correct answer below. O A. Ho H= H2 =... =H4 H;: Not all , are equal (where j = 1,2,.4) O B. Ho H =H2 =.. = 28 H,: Not all u, are equal (where j= 1,2,.28) OC. Ho H1 = 2= H4 O D. Ho H = 2=. 28 b. Find the test statistic. FSTAT = (Round to two decimal places as needed.) c. Determine the critical value. F = (Round to two decimal places as needed.) d. Reach a decision. V Ho. There is V evidence of a difference in the mean U.S. average sales per unit among the food segments.

In a typical set of numerical data, what fraction of the data values lie above Q3?

What is the difference between relative frequency and cumulative frequency? Choose the correct answer below. A. Relative frequency of a class is the number of observations in that class, while cumulative frequency of a class is the sum of all the frequencies. B. Relative frequency of a class is the proportion of the data in that class, while cumulative frequency of a class is the number of observations in that class. C. Relative frequency of a class is the percentage of the data that falls in that class, while cumulative frequency of a class is the sum of the frequencies of that class and all previous classes. O D. There is no difference between the two.

Why the number of days spent in hospital is a data measured at an interval and not ordinal level?