Problem B: Suppose that Cities A, B and C have the following observed number of COVID19 cases. Determine if the COVID19 cases for these barangays are homogeneous.
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- A market researcher for an automobile company suspects differences in preferred color between male and female buyers. Advertisements targeted to different groups should take such differences into account, if they exist. The researcher examines the most recent sales information of a particular car that comes in three colors. (You may find it useful to reference the appropriate table: chi- square table or F table) Sex of Automobile Buyer. Male Color Female Silver 477 298 Black 536 308 Red 482 348 a. Choose the competing hypotheses to determine whether color preference depends on the automobile buyer's sex. O Họ Color preference is independent of the automobile buyer's sex.: HA Color preference is dependent on the automobile buyer's sex. O Ho Color preference is dependent on the automobile buyer's sex; HA: Color preference is independent of the automobile buyer's sex. b-1. Calculate the value of the test statistic. (Round the intermediate calculations to at least 4 decimal places and…Brand Apple Samsung LG Basicmobilephone Othersmartphone Do notuse mobilephone Total Gender Male 108 30 5 2 23 0 168 Female 161 32 0 0 9 0 202 Total 269 62 5 2 32 0 370 b. Derive a relative frequency cross classification table based on row totals (i.e., gender) using the table in above. Brand Apple Samsung LG Basicmobilephone Othersmartphone Do notuse mobilephone Total Gender Male Female - TotalA market researcher for an automobile company suspects differences in preferred color between male and female buyers. Advertisements targeted to different groups should take such differences into account, if they exist. The researcher examines the most recent sales information of a particular car that comes in three colors. (You may find it useful to reference the appropriate table: chi- square table or F table) Sex of Automobile Buyer. Color Male Female Silver 477 298 Black 536 308 Red 482 348
- A variety of a broad bean plant is studied and the number of beans per plantis counted and listed below.An average of 40 customers travel between Departments A and B each day. Unfortunately, Department C is located between Departments A and B, and no customers travel between Department C and Departments A and B. What is the load-distance score of this three department layout?Problem B: Suppose that Cities A, B and C have the following observed number of COVID19 cases. Determine if the COVID19 cases for these barangays are homogeneous. Which is the appropriate alternative hypothesis? City A COVID19 cases 400 B 450 C 500 O The proportions of COVID19 cases in the 3 cities are all equal. O At least two cities have equal proportions of COVID10 cases. O The proportions of COVID19 cases in the 3 cities are not all equal. O The COVID19 cases in the 3 cities are homogeneous.
- A state game commission introduces 40 deer into newly acquired state game lands. The population N of the herd can be modeled byTo receive a C grade, a student must average more than 7777 but less than or equal to 8585. If Noah received a C in the course and had five grades of 7373, 8585, 7373, 6969, and 7878 before taking the final exam, what were the possible grades for his final if there were 100100 points possible? (Assume all six grades are weighted equally and let x represent the unknown score.)This is a Statistics problem. Please code in R.
- For unemployed persons in the United States, the average number of months ofunemployment at the end of December 2009 was approximately seven months(Bureau of Labor Statistics, January 2010). Suppose the following data are for aparticular region in upstate New York. The values in the first column show thenumber of months unemployed and the values in the second column show thecorresponding number of unemployed persons.MonthsUnemployedNumberUnemployed1 10292 16863 22694 26755 34876 46527 41458 35879 2325 10 1120Let x be a random variable indicating the number of months a person is unemployed.a. Use the data to develop an empirical discrete probability distribution for x.b. Show that your probability distribution satisfies the conditions for a validdiscrete probability distribution.c. What is the probability that a person is unemployed for two months or less?Unemployed for more than two months?d. What is the probability that a person is unemployed for more than sixmonths?Hydroxychloroquine is a drug sometimes used to treat malaria or rheumatoid arthritis. This drug has recently received some notoriety as a possible treatment for those suffering from Covid-19. A hydroxychloroquine tablet comes in a 200 mg strength, but hydroxychloroquine dosage may be anywhere from 200 to 1200 mg. Thus, a patient must take multiple pills. Suppose X is the number of pills taken by a randomly selected hydroxychloroquine patient. Then according to JJSDA, x has the following probability mass function, p(x), and cumulative distribution function F(x). 1 2 4 p(x) .04 .27 .35 .10 07 F(x) .04 .31 a .83 .93 1 a. If F is the cumulative distribution function of x, then what is the value of a? b. If p is the probability mass function for x, then evaluate b. c. What is the expected value of x? d. Calculate the variance of x. e. What is the variance of 0.7*x? f. The CDC 'randomly' checks the dosage of 10 hydroxychloroquine patients. What is the probability that exactly 4 of the…Need help with this stat problem
