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Rework Exercise 36, basing the decision on the P-value corresponding to the observed value of the test statistic.
Exercise 36
A study of the number of business lunches that executives in the insurance and banking industries claim as deductible expenses per month was based on random samples and yielded the following results:
Use the four steps in the initial part of Section 1 and the 0.05 level of significance to test the null hypothesis μ1 - μ2 = 0 against the alternative hypothesis μ1 - μ2 0.
A sample data set has n=50 observations. The mean of the data is x=46.5. the sum of squares is x^2=127793. What is the standard deviation of the data.
Standard deviation of the sampling distribution of sample proportion is 0.025. However, the report did not indicate what the sample size n was. What was it?
At the 10% level of significance, is there sufficient evidence to indicate that more books are being loaned out per day, on the average?
a for classes of 142 students find the mean and standard deviation for the number born on the 4th of july ignore leap
a. Give a point estimate of the mean time required to handle a customer complaint. b. What is the standard deviation of the point estimate given in (a)?
Using the sample information given in the above exercise, the p value for testing Ho versus Ha can be calculated to be 0.0057
Sample Testing of a New Drug for Pain Management
a student randomly guesses at 20 multiple choice questions. each question has four possible answers with only one being
Use these data to test whether there are any significant differences among the three age groups. Use α = .05. SSbetween= ? T2/n - G2/N = 152/3 + 122/3 + 32/3 - 302/9
Assignment on the Motivation
Out of the 109 males, 42% preferred Pepsi and out of the 53 females, 40% preferred Pepsi. Pepsi wanted to test to determine if the males preferred Pepsi more than females.
a correlation is computed for a sample of n 18 pairs of x and y values. what correlations are statistically
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