A city wants to know if a new advertising campaign to make citizens aware of the

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A city wants to know if a new advertising campaign to make citizens aware of the dangers of driving after drinking has been effective. The accompanying table shows the number of drivers who have been stopped with more alcohol in their systems than the law allows for each day of the week in the week before and the week a month after the campaign stars, Assume that the data from each population is Normally distributed. Complete parts a through I below a) Are the data paired? Explain. Choose the correct answer below A. Yes, cause the before counts were compared to the counts after the advertisement B. Yes, cause each day of the week was compared before and after the advertisement. c. No. they are not paired because the drivers are independent of each other. b) Compute the mean difference. Find the mean difference of (before after). D bar = drivers c) Compute the standard deviation of the difference B_d = d) Compute the standard error of the mean difference. E (d bar) = e) Find the value of the 1-statistic, t = f) How many degrees of freedom does the 1-statistic have? df = g) Is the alternative one-or two-sided? Explain. Choose the correct answer below. A. It is two-sided, because the city wants to know if the advertisement lowers the number of drunk drivers. B. It is one-sided, because the city wants to know to know if the advertisement lowers the number of drunk drivers. C. It is one-sided, because the city wants to know if the advertisement changed the number drunk drivers. D) It is two-sided, because the city wants want to know if the advertisement changed the number drunk drivers. h) What is the P-value associated with this t-statistic? Assume that the other assumptions and conditions for inference are met. P-value = f) At a = 0.10, what do you conclude? H_o. There sufficient evidence to conclude that the advertising lowered the mean number of drunk drivers on the road.

Explanation / Answer

question is not clear

plese edit the question clearly

or comment here before after (data before,after)

chegg,we are happy to help you

thankyou

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