im having a hard time with this questions please explain the solution clearly Problem 3 (10...
Problem 3 (10 marks) Based on the BBM TV ratings, the Sudbury local television claims its 11:00 PM newscast reaches exactly 41% of the viewing audience in the area. In a survey of 100 viewers, 45 indicated that they watch the late evening news on this Sudbury local television. At a significance level a=0.05, can you infer that the Sudbury local television claim is false? دیا
Problem 6 (10 marks) Based on the BBM TV ratings, the Sudbury local television claims its 11:00 PM newscast reaches at least 41% of the viewing audience in the area. In a survey of 100 viewers, 36 indicated that they watch the late evening news on this Sudbury local television. At a significance level a = 0.05, can you infer that the Sudbury local television claim is false?
Based on the Nielsen ratings, the local CBS affiliate claims its 11:00 PM newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 31% indicated that they watch the late evening news on this local CBS station. The sample proportion is 0.58 0.41 0.31 0.51
Problem 5 (7 marks) A survey of 25 retail stores revealed that the average price of a DVD was $375 with a standard deviation of $20. a) What is the 95% confidence interval to estimate the true cost of the DVD? (4 marks) b) What sample size would be needed to estimate the true average price of a DVD with an error of +55 and a 99% confidence? (3 marks) Problem 6 (10 marks) Based on the BBM TV ratings,...
Im having a hard time wirh this question please explain the solution in details Problem 5 (7 marks) A survey of 25 retail stores revealed that the average price of a DVD was $375 with a standard deviation of $20. a) What is the 95% confidence interval to estimate the true cost of the DVD? (4 marks) b) What sample size would be needed to estimate the true average price of a DVD with an error of +3$ and a...
Im having a hard time with this question please explain solution properly Problem 4 (10 marks) The number of calls received per week by the clients services of a cell phone company over the last 40 weeks are given as follows: 63 74 42 65 51 54 36 56 68 57 62 64 76 67 79 61 81 77 59 38 84 68 71 71 86 69 75 91 55 48 82 83 54 79 62 68 58 41 a)...