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Range of numbers:
13 13 13 20 26 27 31 34 34 34 35 35 36 37 3841 41 41 45 47 47 47 50 51 53 54 56 62 67 82
What is the first and third quartile?What is the second decile and the eighth decile?What is the 67th percentile?
Entire commercial airline industry, consider a random sample of 200 flights. What is the expected number that will arrive on time? What is the standard deviation of this distribution.
The proportion of left handers is 0.10. What is the number of left handers in the sample and what notation is given to that number?
This set of height measurements are recorded in centimeters. Answer the following questions using the Histogram Applet.
Does the variability in output appear to differ at the two experience levels? Test the hypotheses at the .05 significance level.
Write down the name of 4 parts of the regression equation.
When is a regression equation used? What terms describe the fit of a regression equation to the data? What is the importance of the coefficient of determination (r2)?
Determine mean of distribution shown. Give the mean of following probability distribution?
In a simple linear regression analysis of 18 data points the following ANOVA table was found.
Expalin what would be the appropriate statistical procedure to test the following hypothesis: Triglyceride values are a good predictor of weight in obese adults.
Estimated sales resulting from a $15,000 investment in inventory and an advertising budget of $10,000. Interpret b1 and b2 in this estimated regression equation.
The probability that the daily demand at this store is at least one and at most three is:
The article claims that the distributions of annual returns for both common stocks and long-term government bonds are bell-shaped and approximately symmetric. Assume that these distributions are distributed as normal random variables with the mea..
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