A survey of 1000 television viewers conducted by a local television station produced the following data:
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
A television station wishes to study the relationship between viewership of its 11 p.m. news program and viewer age (18 years or less, 19 to 35, 36 to 54, 55 or older). A sample of 250 television viewers in each age group is randomly selected, and the number who watch the station’s 11 p.m. news is found for each sample. The results are given in the table below. Age Group Watch 11 p.m. News? 18 or less 19 to 35...
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,...
4 Chapter 7 Test B 16. [Objective: Calculate and interpret confidence intervals for a proportion) A random sample of 950 adult television viewers showed that 48% planned to watch sporting event X. The margin of error is 4 percentage points with a 95% confidence level. Does the confidence interval support the claim that the majority of adult television viewers plan to watch sporting event X? No; the confidence interval means that we are 95% confident that the population proportion of...
30. 401(K) INVESTORs According to a study conducted in 2011 concerning the participation, by age, of 401(k) investors, the following data were obtained: 60s 50s 40s 30s 20s Age Percent 10 27 28 23 12 a. What is the probability that a 401(k) investor selected at random in 2011 was in his or her 20s or 60s? b. What is the probability that a 401(k) investor selected at random in 2011 was under the age of 50? Source: Investment Company...
V. Simple and joint events Following are success data for businesses in one city. Not profitable Profitable 23 29 Company size Large Medium Small Total 59 14 Total 52 73 212 337 180 262 32 75 A company is randomly selected. Which of these outcomes are simple events and which are joint events? Large but not profitable • Medium sized Small sized • Profitable and small size 52 Company size Large Medium Small Total Profitable 23 59 180 262 Not...
Read the following article below Based upon the article, has the events within the NFL caused Papa John’s sales to decline? Reply with atleast 200 words ARTICLE: Is NFL relationship a drag on Papa John’s sales? Think again In around 30 years writing about the intersection of commerce and sports, we have seldom … no, rarely … actually, never heard a CEO blame an earnings shortfall on a sports sponsorship. Papa John’s founder John Schnatter did just that during a...
kindly assist with questions 8,10, 12, 14
and questions 18 and 26
thank you
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USE THE FOLLOWING INFORMAITON FOR QUESTIONS 13-16 Regionville is a community with a population of 100,000. During 2018, there were 1,000 deaths from all causes in Regionville. A cross-sectional screening program in 2018 identified all existing cases of Hepatitis B in this community. A total of 300 cases were found, and included 200 males and 100 females. During the year 2018, six people died from Hepatitis B in Regionville. Five of the six people who died from Hep B were...
1.. All following elements have been identified as important to supporting school’s level of involvement with law enforcement EXCEPT: A. The school and local law enforcement have developed a memorandum of agreement, (MOA), defining the roles and responsibilities of both. B. The school threatens children with punishment from law enforcement officials for even the most minor infractions. C. The school has developed and maintained an effective relationship with law enforcement. D. The school reports incidents of crime and violence to...