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Student volunteers in a weight loss project were randomly assigned to one of three diets. After 2 months on the diets, subjects were weighed and weight loss was recorded for each person.
a. Conduct a test to determine if there was a significant effect of the diets. Include both analysis and graph.
b. Create the appropriate graph for the diet data below.
Diet A
7
9
8
12
4
10
Diet B
6
13
11
5
Diet C
15
14
10.
Using the probabilities above what is the expected size of family you draw?
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A gambler loses 10 times running at roulette. He decides to continue playing because he is due for a win, by the law of averages. A bystander advises him to quit, on the ground that his luck is cold. Who is right? Or are both of them wrong?
What is the 90% confidence interval estimate of the difference between two population means.
A committee of three is selected at random from a set consisting of five Democrats, eight Republicans, and two Independents.
Based on chi-square table, what is the most correct statement which can be made about the p-value for the test?
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Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
Determine Probability using exponential distribution.The average time between failures of a laser machine is exponentially distributed with the mean of 40,000 hours.
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