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Test the claim that the proportion of men who own cats is smaller than the proportion of women who own cats at the .10 significance level. Let p_M and p_F be the proportion of Men and Women who own cats respectively.
Based on a sample of 80 men, 40% owned cats
Based on a sample of 80 women, 51% owned cats
What is the test statistic and the critical value? Reject or Fail to Reject Null hypothesis?
the gre combined scores for students applying to an engineering schools graduate program are normally distributed with
Find t (subscript alpha/2) for a confidence interval with 90% confidence and compute and interpret the margin of error "E" for a confidence interval with 90% confidence.
Use a significance level to test the claim that the mean weight loss is greater than 0. Based on these results does the diet appear to be effective. Does the diet appear to have practical significance.
Approximately 30% of obese patients develop diabetes. If a physician sees 10 patients who are obese, a) What is the probability that half of them will develop diabetes?
Just, a case of food poisoning was traced to a particular restaurant chain. The source was identified and corrective actions were taken to make sure that the food poisoning would not reoccur. In spite of the response from the restaurant chain, man..
a random sample of 100 pumpkins is obtained and the mean circumference is found to be 40.5 cm. assuming that the
for a particular year theaverage math score on the act is 19.7 with a standard deviation of 4.7. what is the
for the population of infants subjected to fetal surgery for congenital anomalies the distribution of gestational ages
the alphacor company experiences some type of failure on its computer network on average once every 4 hours. assume
The Bunte Auto Repair Shop received a shipment of four carburetors. One is known to be defective. If two are selected at random and tested.
Flight for which a maximum number is 78, what is the probability that the number of people who show up will exceed the capacity of the plane.
Among 620 adults selected randomly from among the residents of one town, 18.9% said that they favor stronger gun-control laws.
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