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Using the 5% level of significance, was there a significant change in cholesterol level.
4 individuals with high levels of cholesterol went on a special crash diet, avoiding high cholesterol foods and taking special supplements. Their total cholesterol levels before and after the diet was as follows:
participant
before
after
J.K.
287
255
L.M.M.
305
269
A.K.
243
245
R.O.S.
309
247
Using the 5% level of significance, was there a significant change in cholesterol level? Use the steps of hypothesis testing.
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Extra college-level training, and rest of the sailors arn't accounted for. How does your sample compare to what you expected to determine? Define null hypothesis.
At 0.01 level of significance, is there evidence that mean price is higher at Whole Foods Market than at Fairyway supermarket? Interpret the meaning of p-value in (i).
Assume the researcher's rats can be considered an SRS from the population of all laboratory rats. The mean Math SAT score of these students is found to be 560, 80 points higher than the national average.
If wages were increased by $1.00, what is the expected effect on the number of complaints received per employee? How can you tell?
Basic Statistics problem
What can we conclude from this summary, Which of the following statements is correct and In which of the following situations would permutation tests be suitable
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Find the value for the correlation coefficient r.
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When combining probabilities, to find the probability of one event AND another event, the separate probabilities should be
Given the same significance level, a ________ value of t will be required to reject the null hypothesis compared to the value of z required for rejection.
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