Question

In: Statistics and Probability

In a test of the quality of two television commercials, each commercial was shown in a...

In a test of the quality of two television commercials, each commercial was shown in a separate test area six times over a one-week period. The following week a telephone survey was conducted to identify individuals who had seen the commercials. Those individuals were asked to state the primary message in the commercials. The following results were recorded.

Commercial A Commercial B
Number Who Saw Commercial 145 195
Number Who Recalled Message 61 57


  1. Use  = .05 and test the hypothesis that there is no difference in the recall proportions for the two commercials.

    Formulate the null and the alternative hypotheses.
    H0: p1 - p2equal to 0
    Ha: p1 - p2not equal to 0

    What is the value of the test statistic (to 2 decimals)?


    What is the p-value (to 4 decimals)?


    Does there appear to be a difference in recall proportions for the two commercials?
    Yes
  2. Compute a 95% confidence interval for the difference between the recall proportions for the two populations (to 4 decimals).
    (  ,   )

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

In a test of the quality of two television commercials, each commercial was shown in a...
In a test of the quality of two television commercials, each commercial was shown in a separate test area six times over a one-week period. The following week a telephone survey was conducted to identify individuals who had seen the commercials. Those individuals were asked to state the primary message in the commercials. The following results were recorded. Commercial A Commercial B Number Who Saw Commercial 148 203 Number Who Recalled Message 62 62 What is the value of the...
In a test of the quality of two television commercials, each commercial was shown in a...
In a test of the quality of two television commercials, each commercial was shown in a separate test area six times over a one-week period. The following week a telephone survey was conducted to identify individuals who had seen the commercials. Those individuals were asked to state the primary message in the commercials. The following results were recorded. Commercial A Commercial B Number Who Saw Commercial 148 203 Number Who Recalled Message 62 62 1. What is the value of...
In a test of the quality of two television commercials, each commercial was shown in a...
In a test of the quality of two television commercials, each commercial was shown in a separate test area six times over a one-week period. The following week a telephone survey was conducted to identify individuals who had seen the commercials. Those individuals were asked to state the primary message in the commercials. The following results were recorded. Commercial A Commercial B Number who saw the commercial: 155 Number who saw the commercial: 204 Number who recalled the message: 64...
If you were interested in looking at the difference between commercials shown during daytime television (7am-5pm)...
If you were interested in looking at the difference between commercials shown during daytime television (7am-5pm) and primetime television (6pm-11pm), what do you think you would find? Why do you think commercial content is different during these two times? If you wanted to test your hypotheses, what would your unit of analysis be? What would your units of observation be?
Feminized faces in TV commercials. Television commercials most often employ females or “feminized” males to pitch...
Feminized faces in TV commercials. Television commercials most often employ females or “feminized” males to pitch a company’s product. Research published in Nature (August 27 1998) revealed that people are, in fact, more attracted to “feminized” faces, regardless of gender. In one experiment, 50 human subjects viewed both a Japanese female face and a Caucasian male face on a computer. Using special computer graphics, each subject could morph the faces (by making them more feminine or more masculine) until they...
**A company developed two commercials, A and B, to advertise for their product. Two random test...
**A company developed two commercials, A and B, to advertise for their product. Two random test groups were put together each with 100 individuals and each group watched one commercial and states if they would buy the product. Group A had 25 of the individuals say they would buy the product and Group B had 20 individuals say they would buy the product. It was concluded that commercial A was more effective.** ```{r} ``` ##b **A randomized experiment was conducted...
If a duck commercial is to tested against two nonduck commercials to determine which ad generates...
If a duck commercial is to tested against two nonduck commercials to determine which ad generates more favorable attitudes toward Aflac, what type of experimental design would you recommend and why? preexperimental designs ,true experimental design quasi-experimental designs statistical design
What is the purpose behind commercials that use television as a medium? Provide a rationale for...
What is the purpose behind commercials that use television as a medium? Provide a rationale for your answer. Based on your understanding of persuasion, what is the theoretical basis of these commercials? Support your answer with relevant examples. In your opinion, can individuals avoid or overcome unwanted persuasions? How? If you were asked to design a training seminar to teach individuals how to avoid unwanted persuasion, what details would you take into consideration and why?
The cost, in thousands of dollars, of airing x television commercials during a sports event is...
The cost, in thousands of dollars, of airing x television commercials during a sports event is given by C(x) = 20 + 5,000x + 0.05x2. (a) Find the marginal cost function Use it to estimate how fast the cost is increasing when x=4 ............. thousand dollars Compare this with the exact cost of airing the fifth commercial. The cost is going up at the rate of $  per television commercial. The exact cost of airing the fifth commercial is $  . Thus,...
In a particular metro area, there are three commercial television stations, each with its own news...
In a particular metro area, there are three commercial television stations, each with its own news program from 6:00 to 6:30 pm. According to a report in this morning’s local newspaper, a random sample of 240 viewers last night revealed that 92 watched the news on WNAE (channel 5), 81 watched on WRRN (channel 11), and 67 watched on WSPD (channel 13). At the .02 significance level, is there a difference in the proportion of viewers watching the three channels?...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT