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For many years, TV executives used the guideline that 30 percent of the audiences were watching each of the prime-time networks and the 10 percent were watching cable stations on a weekday night. A random sample of 500 viewers in the Tampa - St.
Petersburg, Florida area last Monday night showed that 165 homes were turned in to the ABC affiliate, 140 to the CBS affiliate, and the remainders were viewing a cable station.
At a .05 level of significance, can we conclude the guidelines are still reasonable?
I have the t-score of 1.660 an a standard error of .036. I hope they are correct, but also need the test effect and test statistic, p-value.
Calculate p value? What is the critical value?
Solve problem graphically1. Describe optimal solution and objective function value in context of the problem.
Use the normal-theory method to test for significant differences in 12-month mortality between the two groups.
Generate a scatterplot for Occupancy Rate (Y) vs. Rent per Sq. Ft. (X). Send this graph to me via email. State the equation of the best fit line. State and interpret the values of bo and b1.
What is the major difference between finding significance and confidence intervals using population samples or using population proportions?
A trucking firm suspects that the mean lifetime of a certain tire it uses is less than 35000 miles. To check the claim the firm randomly selects and test 54 of these tires and gets a mean lifetime of 34,570
CHris Turlock owns and manages a small business in San Francisco, California. The business provides breakfast and brunch food, via carts parked along sidewalks, to people in the business district of the city.
What size sample would be required to estimate the proportion of hospital referrals with a margin of error of 0.04 or less at 95% confidence?
Consider a binomial distribution with 15 identical trials, and a probability of success of 0.5. Find the probability that x = 2 using the binomial tables
After careful analysis, East West has determined the following cost breakdown for the four manufacturers (in $1,000's) based on whether or not the trade bill passes:
Katie is studying aggression among adolescent girls. She believes that there is a relationship between the level of interaction a girl has with her mother and her level of aggression.
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