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Forty subjects were assigned to a particular weight loss diet. By the end of a year, 20 of the subjects had dropped out of the study The mean weight loss for those who remained was 2.1 kilograms.
a. Is 2.1 kilograms an unbiased estimate for the mean weight loss by all subjects who would be assigned that diet?
b. What would the mean weight loss for the original 40 subjects be if the 20 who dropped out actually gained an average of 2.1 kilograms?
It is currently difficult to hire in the technology sector. Your company believes that the chances of successfully hiring this year are 0.13.
Since travel and administrative costs for conducting a simple random sample of all members of fitness clubs throughout Japan would be prohibitive.
A new treatment for a disease is being tested, to see whether it is better than the standard treatment. The existing treatment is defective on 50% of patients.
Determine the observed p-value for the hypothesis test and interpret this value. What does this mean?
question 1 the following data are results from a study you recently completed. calculate the correlation coefficient
Testing the new idea on actual ?ights would cost $60,000, and the results would have a 0.85 probability of correctly detecting the state of nature. What should Swiss do?
A family is picked at random from among the families with four children. Then a child is picked at random from the selected family.
Asian Americans and Pacific Islanders belong to a single Asian American culture, what do you say to them to convince them both statements are misconceptions?
five applicants apply for two jobs. applicants a and b are male applicants c d and e are female. the personnel officer
A firm's office contains 150 PCs. The probability that a given PC will not work on a given day is 0.05.
Your doctor calls and says that you have tested HIV positive. He is sorry but there is a 99.9% (1- 0.001) chance that you have HIV. Is he correct?
The interviewers were told to find a certain number, or quota, of each of several types of people. For example, they might have been told to interview.
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