16. A movie producer is bringing out a new movie, In order to map out his advertising, he wants to determine whether the movie will appeal most to a particular age group or whether it will appeal equally to all age groups. The producer takes a random sample from persons attending a pre-reviewing showing of the new movie and obtains the following result. Use x'-test to derive the conclusion. Age-groups Persons Under-20 20-39 40-59 60 and over Total Liked the movie 110 200 710 320 80 Disliked the movie 70 60 195 50 15 Indifferent 30 20 40 95 Total 400 100 200 300 1,000
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- 10 Suppose that in a particular state a standardized test is given to all graduating se- niors. Let score denote a student's score on the test. Someone discovers that perfor- mance on the test is related to the size of the student's graduating high school class. The relationship is quadratic: score = 45.6+ .082 class .000147 class², where class is the number of students in the graduating class. (i) How do you literally interpret the value 45.6 in the equation? By itself, is it of much interest? Explain. (ii) From the equation, what is the optimal size of the graduating class (the size that maximizes the test score)? (Round your answer to the nearest integer.) What is the highest achievable test score? (iii) Sketch a graph that illustrates your solution in part (ii). (iv) Does it seem likely that score and class would have a deterministic relationship? That is, is it realistic to think that once you know the size of a student's graduating class you know, with certainty, his or her test…Has the researcher tested for representativeness: comparing the sex distribution ofthe population and of respondents, for example, or their ages, ethnicity, education, orincome?New Lottery (Continue): Select an appropriate response What is the best pricing approach for the entity that sells this lottery tickets. O Let people bid on the tickets. O Price the ticket to be sightly more than the mean winning amount OStop seling people are alvays winning. O Price the ticket to be slightly less than the mean winning amount.
- MCQ 7 A firm is considering whether to adjust the price it charges for units of output, but it first needs to know how the quantity of output sold and total revenue will be affected. The firm employs a statistician to examine the structure of demand and she estimates that the price elasticity of demand for the firm's product lies somewhere between - 0.25 and -0.75. If this estimate is correct, we can deduce that: A an increase in price will generate a reduction in the quantity of output sold and a fall in total revenue a reduction in price will generate an increase in the quantity of output sold and a rise in total revenue an increase in price will generate a reduction in the quantity of output sold, but the uncertainty connected with the estimate of price elasticity implies that it is C not possible to determine whether total revenue will rise or fall D a reduction in price will generate an increase in the quantity of output sold and a fall in total revenue E a reduction in price will…Ee 133.Pls without plagiarism please....
- 1. The following table shows three age-groups of boys and girls, (a) the number of children affected by a non-infectious disease, and (b) the total number of children exposed to risk. Giris Вoys II III I II III (a) 60 25 48 96 18 42 (b) 240 470 350 530 200 210 (i) Test whether there are differences between the incidence rates in the three age-groups of boys. (ii) Test whether the boys and girls are equally susceptible or not.In question 11 there is a typo its referencing figure 20.1 NOT 19.1Question: 18 short answer Five Years Ago Today 82 88 112.5 54 45 36 The test statistic for the difference between the two population means is Select one: O a. -.47 O b. -3 O c. -.65 O d. -1.5 please
- 60 In order to price discriminate, a seller must be able to tell the difference between buyers who are willing to pay a higher price and those who are only willing to pay a lower price. I of Select one: OTrue False18. Car and Taxi Ages When the author visited Dublin, Ireland (home of Guinness Breweryemployee William Gosset, who first developed the t distribution), he recorded the ages of randomlyselected passenger cars and randomly selected taxis. The ages can be found from thelicense plates. (There is no end to the fun of traveling with the author.) The ages (in years) arelisted below. We might expect that taxis would be newer, so test the claim that the mean age ofcars is greater than the mean age of taxis.10:30 AM 0.0KB/s O 10ll ll 46 40+ Percentage Assessmen... Percentage 40Assessment Questions 1. In a College there are 1800 students. Last day except 4% of the boys all the students were present in the college. Today except 5% of the girls all the students are present in the college, but in both the days number of students preserit in the college, were same. The number of girls in the college is? A. 1000 B. 400 C. 800 D. 600 E. 1200 2. In a library 60% of the books are in Hindi, 60% of the remaining books are in English rest of the books are in Malayalam. If there are 4800 books in English, then the total number of books in Malayalam are? A. 3400 B. 3500 C. 3100 D. 3200 ENone of these 3. 80% of a small number is 4 less than 40% of a larger number. The larger number is 125 greater than the smaller one. The sum of these two numbers is A. 325 B. 345 C. 355 D. 365 E. None of these 4. In a private company 60% of the employees are men and 48% of the employees are Engineer and 66.6% of…