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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.
Compute the probability that student eats at fast food restaurant 2 or more times per week?
The results of the simple linear regression are provided below.
Compare two month moving average also exponential smoothing using MAD. The subsiquent data represents demand for company ABC's products for the last 10 months.
Z score on comparison distribution for sample score and your conclusion. Suppose that all population are normally distributed.
Give a mathematical expression for the probability density function of driving distance.
If the sum of the squared deviations about the regression line is SSE = 40.0, what is the coefficient of determination?
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p-value.
Explain finding value of test statistic and P-value also understand the result. At the .01 significance level can we compute that the mean fare has increased.
What is the probability of getting someone who is in the 23-30 age brackets or whom smokes?
Find the probability that an eligible voter selected at random will have the following characteristics.
What is the best prediction for the number of products sold based on advertising costs of $7000?
Make a histogram for the r probability distribution.
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