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1) Determine the appropriate test to perform
2) Compute the test by hand
3) Confirm your computations with Minitab or an online calculator
4) Apply the results to draw a conclusion
5) Write up the conclusion according to APA format
Are serial killers more introverted than the general population? A sample of 14 serial killers serving life sentences was tested and found to have a mean introversion score of 42 with s = 6.8. If the population mean is 36, are the serial killers significantly more introverted at the .05 level? Perform the appropriate one-tailed test.
A contingency table has 5 rows and 4 columns. How many degrees of freedom are there?
Using equation presented calculate SST,SSE and SSr. Determine least squares regression line for this data.
Find the probability that exactly 15 flights arrive on time.
Use this information to construct a probability table, and then calculate each of the following probabilities:
Why is it misleading to draw the conclusion from the test above that long-time exposure to cadmium reduces the vital capacity?
The researcher expects a 12-point treatment effect and plans to use a two-tailed hypothesis test with a = 0.05.
What can we conclude from these figures at a level of significance of .01?
Inverse probability based on normal distribution - The data set has a bell-shaped distribution. Between what two prices do 68% of the houses lie?
Illustrate what is the probability all four calls are infact emergencies. Illustrate what is the probability that three or more calls are not emergencies.
Which are likely to be independent events? For those you think are not, suggest reasons why.
How many ways can she choose 4 dissimilar rides if order does not matter? If she has chosen the first weeks rides, how many ways can she choose four more different rides for second week? Suppose that order does not matter.
As part of this trial, they want to find out whether there is a difference between effectiveness for women and for men. At = .05, what is the test value?
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