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Pages were randomly selected by three authors (A, B, and C). The Big Reading Company scores are listed below. Use a 0.05 significance level to test the claim that the three samples are from populations with the same mean. Do the books appear to have different reading levels of difficulty?
Identify the null hypothesis, alternative hypothesis, test statistics value, P-value, and the conclusion which is REJECT or FAIL TO REJECT H0, there IS or IS NOT sufficient evidence to reject the claims that the three books (A, B, and C) have the same mean score.
Author A = 58.2 - 73.4 - 73.1 - 64.4 - 72.7 - 89.2 - 43.9 - 76.3 - 76.4 - 78.9 - 69.4 - 72.9
Author B = 85.3 - 84.3 - 79.5 - 82.5 - 80.2 - 84.6 - 79.2 - 70.9 - 78.6 - 86.2 - 74.0 - 83.7
Author C = 69.4 - 64.2 - 71.4 - 71.6 - 68.5 - 51.9 - 72.2 - 74.4 - 52.8 - 58.4 - 65.4 - 73.6
If there are 12 business-class passengers and 50 tourist-class passengers on a particular flight, what are the expected value of total luggage weight and the standard deviation of the total luggage weight?
in a recent survey 72 of the community favored building a health center in their neighborhood. if 14 citizens are
Using least squares regression analysis, what would you estimate demand to be for each month next year?
a student team in a business statistics course wanted to determine if there was a difference in average download times
Tax companies imply that the returns they prepare are perfect, but what proportion of returns from tax companies have mistakes? To answer this question
You are using a significance level of α = 0.05 to test a claim that p > 0.5. Your sample is a simple random sample of size n = 49. Calculate β for the test, assuming that the true population proportion is 0.7 and showing all work.
Sales are above 671,000 copies, and 10% of the time, sales are above 712,000 copies. Find the mean and the variance of annual sales.
in a family of 4 childrena list all the ways there can be 2 girls and 2 boys.b find the probability that there are 2
Strack, Martin, and Stepper (1988) found that people rated cartoons as funnier when holding a pen in their teeth (which forced them to smile) than when holding a pen in their lips (which forced them to frown). For this study, identify the independ..
1.a psychology instructor asked the 100 females in her class to rate their intelligence on a scale of 1 to 10. the
What is the standard error of estimate and suppose a large sample is selected and about 95 percent of the predictions would be between what two values.
Suppose a consumer group asked 18 consumers to keep a yearly log of their shopping practicesand that the following data represent the number of coupons used by each consumer over theyearly period.81, 68, 70, 100, 94, 47, 66, 70, 82, 110, 105, 60, 21,..
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