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1. See the two data sets for independent samples:
Sample 1 Sample 2
n = 50 n = 35
xbar = 13.6 xbar = 11.6
Pop SD = 2.2 Pop SD = 3.0
What are the point estimates and 95% confidence intervals for these samples?
2. Consider this hypothesis test for a sample of 75 units with a population standard deviation of 10.
H0: Mean = 22
Ha: Mean =/= 22
If the sample mean is 23, what is your conclusion for this hypothesis test with an alpha value of .01?
Unless indicated otherwise, round your answer to one more decimal place than is present in the original data values.The students in Hugh Logan's math class took the Scholastic Aptitude Test. Their math scores are shown below. Find the mean score.
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if the null hypothesis for the f-test has been rejected a researcher can use either the scheffe or tukey test to
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an investor estimates that there is a 75 chance that a particular mutual funds price will increase to 100 per share
Random samples of 25 observations were selected from each of 3 populations. For these data, SSTR= 120 and SSE = 216.
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