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A member of Congress wants to determine her popularity in a certain part of the state. She indicates that the proportion of voters who will vote for her must be estimated within plus or minus 2 percent of the population proportion. Further, the 0.95 degree of confidence is to be used. In past elections, the representative received 40 percent of the popular vote in that area of the state. She doubts whether it has changed much. How many registered voters should be sampled?
Say a fast-food franchiser is considering building a restaurant in a local mall. According to franchise headquarters, a site is acceptable only if the number of pedestrians passing the location averages more than 100 per hour.
If Stephenson wishes to maximize its total market value, would you recommend that it issue debt or equity to finance the land purchase? Explain.
Sample of size 26 was taken from normal population with standard deviation 1.697. Approximate the probability that standard deviation of sample is greater than 1.23.
In Excel, which of the following functions is used to conduct a hypothesis test (using the p -value) for a population variance
Is there sufficient evidence to conclude that a majority of U.S. adults feel this way? Test the appropriate hypotheses using a 0.01 significance level.
Testing indicates that the lifetimes of a shipment of disposable butane lighters are normally distributed with a mean of 1000 lights and a standard deviation of 100. What percentage of these lighters will:
Provide the Null and Alternative Hypotheses testing statements for the following statement: There are only 24 hours in a day. What statistical tool would you now utilize to improve your business? Explain the Chi-Square Non-Parametric Testing Concept.
Exponential distribution witha a mean value of 4 minutes. What is the probability that you will be served in less than three minutes on 4 of the next 6 days.
Calculate the estimated standardized regression coeffcients using the output obtained here and the descriptive statistics output obtained above. Do your results agree with your previous results?
54% of men consider themselves professional baseball fans. You randomly select 10 men and ask if he considers himself a fan. Find the probability that the number who consider themselves professional fans is
Plot the data on the same line and give your impression regarding any apparent differences between the two companies.
Students from the class for an oral exam, what is the probability that 3 female students and 5 male students will be selected?
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