Consider an artificial population U = {1, 2, 3, 4, 5}, with the x and y information given in ne table i 1 2 3 4 5
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- 5. The distribution of number of stores according to size in 3 areas is given in the following table: AREA L M S P 50 50 75 150 105 260 R 20 130 150 Discuss about the possibilities of the following: iv) Are L and S dependent? v) Are M and L independent?Chapter 7, Section 2, Exercise 035 Give the degrees of freedom for the chi-square test based on the two-way table. Yes No Total Group 1 56 44 100 Group 2 132 68 200 Group 3 72 28 100 Total 260 140 400 Degrees of freedom=Question 4 Three qualities of second-hand bicycles are available in equal numbers: high, medium, and low. There are many buyers and sellers, who value each quality of the bike differently. The value that each agent assigns to each quality of the bike is given below. Quality High Medium Low Buyer’s value 100 (high), 65 (medium), 30 (low) Seller’s value 75 (high), 60(medium) , 45 (low) (i) What is the efficient outcome in this market? Equivalently, which types of bikes should change their owners to maximise the social welfare? Suppose that the buyers do not know the quality of any particular bicycle for sale, but the sellers do know the quality of the bike they sell. The price at which a bike is traded is determined by demand and supply. Each buyer wants at most one bicycle. (ii) Assuming that each buyer purchases a bike only if its expected quality is higher than the price, and each seller is willing to sell their bike only if the price exceeds their valuation, what is the…
- DOctor (Military officeet 19 Lawyer 15 Librarians Mule female 12 humen resources managers 8 20 23 23 22 30 19 Based on Selected student: the table, Find the Probibilty that the a. is male or his job is Lawyers. b. her job is Human resources managers givesn that She is a Female-. The following information is about the survival of Covid-19 patients (in days) once infected. If another patient is added to the study that is survived for 650 days then which type of averages will be suitable? What will happen to the results, explain. 210 222 240 233 250 228 227 182 198 237 241 213 224 215 226Q3 (D. A. Şaşmaz, Problem 9.23) – There is a common belief that usually one sex of children (either boy or girl) run in the family, i.e. once a family have the first baby as a girl, other children are expected to be girl as well, or vice virsa. Based on an observation on 320 families having 5 children, the sex of children (boys or girls) are given in the following table. Do these results confirm that the probabilities of having girl or a boy in the same family are equal at 5% and 1% significance levels? a) Use normal approximation method to binomial distribution. b) Use chi-square test. Number of Boys/Girls 5B0G 4B1G 3B2G 2B3G 1B4G OB5G Number of families 18 56 110 88 40
- Which day of the week there are the least number of Covid patients admitted and more number of patients are recovered? No of Covid cases admitted and recovered 250 210 200 180 170 150 150 140 120 140 125 150 120 120 110 90 100 80 50 Sunday Monday Tuesday Wednesday Thursday Friday Saurday Admitted No of Recoveries O a. Wednesday O b. Tuesday O c. Thursday O d. Friday3.6.1: Cartesian products. qx3zqy7 Jump to level 1 A = { a, b, c, d } C = { *, +, # } Select the elements of A x Cx C. (d, +, #) (*, +, d) (+, #) (*, *, b) Check Next 2 (#, #, b) (#, *, a) (+, +, d) (b, +) 3 4Suppose a researcher is interested in investigating the effectiveness of a new medication aimed to treat HIV. The following table represents the CD4 cell count for a SRS of individuals treated with the new medication. Patient CD4 Patient CD4 Patient CD4 Count(cells/mm3) Count(cells/mm3) Count(cells/mm3) A 298 G 311 M 312 B 306 H 304 N 296 C 278 I 275 O 347 D 304 J 291 P 367 E 315 K 286 Q 275 F 320 L 333 R 281 Assuming the researchers hypothesized that the new medication would increase to at least 400 cells/mm , use your CI to answer the question as to whether or not the researchers met their goal.
- 6.28Consider these tables of cell means. Which one shows a possible interaction, and which one does not show any evidence of an interaction? Table 1 B1 B2 A1 10 15 A2 20 25 Table 2 B1 B2 A1 10 25 A2 18 18Question 2 Jadual menunjukkan bilangan pelanggan (dalam juta) dan jualan tahunan (dalam RM juta) untuk sampel 14 Outlet Pakaian Berjenama. Table shows the number of customer (in millions) and annual sales (in million RM) for a sample of 14 Branded Apparel Outlet. Store Customers (x) Annual Sales (y) 1 3.7 5.7 2 3.6 5.9 3 2.8 6.7 4 5.6 9.5 3.3 5.4 2.2 3.5 7 3.3 6.2 8 3.1 4.7 9 3.2 6.1 10 3.5 4.9 11 5.2 10.7 12 4.6 7.6 13 5.8 11.8 14 3.0 4.1 a. Draw a scatter diagram to show the relationship between two variables. Answer: