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Define Hypothesis testing with one way ANOVA and Tukey's test. (1) 29 randomly selected subjects were exposed to commercials shown in more involving programs.
(2) 29 randomly selected subjects were exposed to commercials shown in less involving programs, and
(3) 29 randomly selected subjects watched commercials only
The mean brand recall scores for these three groups were, respectively, X1-bar = 1.21, X2-bar= 2.24, and X3-bar= 2.28. Furthermore, a one-way ANOVA of the data shows that SST = 21.40 and SSE = 85.56.
Perform pair wise comparisons of the treatment means by computing a Tukey simultaneous 95 percent confidence interval for each of the pair wise differences μ1 - μ2, μ2 - μ3, and μ2 - μ3. Which type of program content results in the worst mean brand recall score?
The hypothesis that the samples came from identical populations cannot be rejected, the T value is 16.5 greater that the lower limit.
Compute the probability that debt for a randomly selected borrower with good credit is more than $18,000?
The critical F value with 6 numerator and 60 denominator degrees of freedom at α = .05 is:
Note that Σ x = 2233 and Σ x 2 = 138,053. At the 5% level of significance, can the instructor conclude that the new mean is different from 64?
would this prove that they are exceeding their goal, using α = .025?
Recognize independent variable and dependent variable for this experiment. Think in your head what influences what? Or, what causes what? Cause is independent variable.
Compute the mean and standard deviation of the scores and use these for the calculations below. Show your calculations on the back of his page.
The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.
Formulate the hypotheses that can be used to test the validity of the brokerage firm executive's claim.
Assume that 60 percent of the voters in a particular region support a candidate. Find the probability that a sample of 1,000 voters will yield a sample proportion in favor of the candidate within 4 percentage points of the actual proportion.
Determine the probability that their SAT scores will differ by more than 50 points?
Calculate the correlation and the regression equation and plot the data in the space provided.
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