Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Many companies that cater to teenagers have learned that young people respond to commercials that provide dance-beat music, adventure, and a fast pace rather than words. In one test, a group of 128 teenagers were shown commercials featuring rock music, and their purchasing frequency of the advertised products over the following month was recorded as a single score for each person in the group.
Then a group of 212 teenagers was shown commercials for the same products, but with the music replaced by verbal persuasion. The purchase frequency scores of this group were computed as well. The results for the music group were x‾=23.5 and s = 12.2; and the results for the verbal group were x‾=18.0 and s = 10.5. Assume that the two groups were randomly selected from the entire teenage consumer population.
Using the α = 0.01 level of significance, test the null hypothesis that both methods of advertising are equally effective versus the alternative hypothesis that they are not equally effective. If you conclude that one method is better, state which one it is, and explain how you reached your conclusion.
The same researcher wishes to estimate the proportion of executives who own a car phone. She wants to be 90% confident and be accurate within 5% of the true proportion. Find the minimum sample size necessary
The mean assembly time for a random sample of 24 carts, using the new method, was 40.6 minutes, and the standard deviation of the sample was 2.7 minutes.
What evidence from the fiveother documents would support or oppose the views of Rauschenbusch or Pius?What do all of the documents tell you about the issues and problems that were affecting people's behavior around 1900?
If Mr. D's wants to have only a 1% chance of running out of Coke by the end of the week, how many should Mr. D's order for the week?
a refrigerated delivery truck has a load of perishable goods worth 10000. if the refrigeration unit is not cold enough
Wall Street securities firms paid out record year-end bonuses of $125,500 per employee for 2005 (Fortune, February 6, 2006). Suppose we would like to take a sample of employees at the Jones & Ryan securities firm to see whether the mean year-end b..
in a report on high school graduation it was stated that 85 of high school students graduate. suppose 3 high school
what is the probability of obtaining 2 heads out of 5 tosses of a coin in a binomial
real estate agents always say location location location is the most important thing in buying a house. we want to know
give an example of how you may use a correlation or simple regression to examine the relationship between two variables
Find the probability that less than five students voted in the election and what is the probability that less than 30 accounts will be classified as delinquent?
the correlation between the temperature in celsius and temperature in fahrenheit.the correlation between hours of sleep
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd