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A researcher wants to know if the average math SAT scores of high school football players is significantly higher than the average math SAT scores of high school basketball players. She knows that for all basketball players their average math SAT is 442 with a standard deviation of 92. She then selects a sample of 102 football players and finds that their average math SAT is 460. Use alpha =.01 to perform the appropriate hypothesis test.
Calculated test statistic, decision about the null hypothesis interpretation of results, and a list of references consulted.
What is the probability that a respondent said neither the Big Ten nor the Pac-10 would have a team in the Rose Bowl?
The MacBurger restaurant chain claims that the waiting time of customers for service is normally distributed,
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
The grade point averages for 10 randomly selected high school students are listed below. Assume the grade point averages are normally distributed.
Test the hypothesis that no difference exists between the groups at α = .05 and perform and report all related tests and statistics.
Utilize a test of the difference among proportions when answering these questions. Illustrate the research hypothesis.
Assuming that the variability is unchanged (i.e., σ = 6), is there sufficient evidence to suggest that the strength of the product has increased at the 1% level of significance?
Suppose you were to cut up the directory and pull out one listing at random to contact.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
At the .05 level of significance, can we conclude that those joining Weight Reducers on average will lose less than 10 pounds? Determine the p-value.
For following scores determine values of each expression: X: 4, 2, 1, & 5. åX, åX 2 , (åX) 2 , å(X-1).
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