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Siegal found that elderly people who owned dogs were less likely to visit the doctor after upsetting events than were those who did not own pets. In a replication study, a sample of elderly dog owners were compare to a similar group (in terms of age & health) who did not own dogs. The researcher recorded the number of visits to the doctor for the past year for each person. The data is below
Is the number of visits significantly less for the dog owners than for the participants in the control group? Use a one tailed test with alpha level set at p<.05
using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
there are 20 questions on the test. responces are ab c and d. each question is 5 points and only one response is
a life insurance company wants to update its actuarial tables. assume that the probability distribution of the
How would you use the "margin of error" in estimating the percentage of all adults who think that Venetian blinds are the hardest to clean?
Write a brief summary of the distribution of the area of homes.
What is the rejection point at α = .01 and indicate if you would accept or reject H o ?
The controller of Dash Shoes Inc. instructs you to prepare a monthly cash budget for the next three months. You are presented with the following budget information:
Suppose that the scores of architects on a particular creativity test are normally distributed. What percentage of architects have Z scores (a) above .10, (b) below 10, (c) above .20, (d) below .20, (e) above 1.10, (f) below 1.10, (g) above -.10, (h)..
Is it likely that you will answer at least forty-four questions correctly on the test? Explain. John randomly guesses to answer each question. Is his score of thirty-four out of eighty-eight unusual? Explain
What is overall mean and standard deviation of the test scores? Sketch the distribution and show where you are and where your friend is?
on august 82012 the national average price for a gallon of regular unleaded gasoline was 3.63. the prices for a random
Estimate the mean monthly rent paid by the whole student population. what is the probability that the sample mean exceeds the population mean by more than %5.
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