Acclaim or Attack. In the article “A
- a. Find P(S2).
- b. Find P(S2 & P1).
- c. Obtain P(P1 | S2) directly from the table.
- d. Obtain P(P1 | S2) by using the conditional probability rule and your answers from parts (a) and (b).
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- The owner of a restaurant in Bloomington, Indianna, has recorded sales data for the past 10 years. He has also recorded data on potentially relevant variables. The following table gives data on sales and other potentially relevant variables for that particular restaurant. Sales (thousands of dollars) Year Population Advertising (thousands of dollars) Previous advertising (thousands of dollars) $15713 1 102558 $20 $30 $12937 2 101792 $15 $20 $12872 3 104347 $25 $15 $16227 4 106180 $30 $25 $15388 5 106562 $15 $30 $13180 6 105209 $25 $15 $17199 7 109185 $35 $25 $20674 8 109976 $40 $35 $20350 9 110659 $20 $40 $14444 10 111844 $25 $20 Consider the model: salest = 0 + 1t + 2popt + 3advt + 4advt-1 + t where salest = sales in year t, popt = size of the population residing within 10 kilometres of the restaurant, advt =…arrow_forwardThe article ``Work-Related Attitudes" (Psychological Reports, 1991:443-450) reports the results of a survey of 395 elementary school teachers and 266 high school teachers. Of the elementary school teachers, 224 said they were very satisfied with their jobs, whereas 126 of the high school high school teachers were very satisfied with their jobs. Consider the elementary school teachers and the high school teachers that were interviewed as two independent groups. Test the claim that the proportion of elementary teachers who are satisfied (p1) is LARGER THAN the proportion of high school teachers who are satisfied (p2), using α=0.05.arrow_forwardEcologists conducted a study to investigate the potential ecological impact of golf courses. Investigators monitored the reproductive success of bluebirds in birdhouses at nine golf courses and ten similar birdhouses at nongolf sites. Data on nests in birdhouses occupied only by bluebirds are shown in the table. Observed Number of Nests per Birdhouse by Location 0 nests 1 nest 2 or 3 nests Total Golf 30 42 8 80 Nongolf 40 58 22 120 Total 70 100 30 200 40 A 42 B 50 C 58 D 60 Earrow_forward
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