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A 95% confidence interval for the mean weight gain of adult mice on a certain diet is (11.2, 54.7) grams.
a) What was the mean weight gain of the mice in this study?
b) What can you say about the p-value of a hypothesis test with a null hypothesis that there is no weight gain (on average) for mice on this diet?
Assuming your sample is valid, what is the upper bound of a 95% confidence interval for the population proportion of customers who are less than 30 years old?
Gather data by observation that can be easily categorized with finding frequency for each category (number of blue cars, red cars, white cars
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Mr. R.C. Cola owns 7,001 shares of Soft drinks, Inc. There are 10 seats on the company board of directors, and the company has a total of 77,000 shares.
The formula for a regression equation is Y' = 2X + 9. What would be the predicted score for a person scoring 6 on X? If someone's predicted score was 14, what was this person's score on X
Andrew and Brandon are two ambitious young men who were optimistic about the health supplements market in Southeast Asia and so they started a trading company a few months ago, called Alternative Health Pty Ltd ("AHPL"). Both are shareholders and ..
Testing at the 5% significance level, can you conclude that the two population proportions are different? Use both the critical-value and the p-value approaches
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A random sample of 65 packages yielded a mean of 1.05 lbs and a standard deviation of .23 lbs. What is the 90% Confidence Interval for this problem?
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Is there any evidence to suggest that the population mean amount of protein in Shelf Safe Milk is less than the population mean amount of protein in regular.
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