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A lending institution supplied the following data on loan approvals by four loan officers. Use a =0.5 and test to determine whether the loan approval decision is independent of the loan officer reviewing the loan application.Loan officer Approved RejectedMiller 24 16McMahon 17 13Games 35 15Runk 11 9
A national Retail Foundation survey found housholds intended to spend an average of $932 during the December holiday season. Assume that the survey included 850 households and that the standard deviation of the sample is $215.
The main part of the ACS contacts 250,000 addresses by mail each month, with follow-up by phone and in person if there is no response. Each household answers questions about their housing, economic, and social status. What is the Population.
Write down the advantages and disadvantages of using computer software for decision making.
If a random sample of size 2 is observed, demonstrate that a UMP test of size 0.10 for the above test exists. Also decide the form of the rejection region.
Drawing the standard normal curve and indicating the area representing the probability and
Due to financial hardship, the Nyke shoe company feels they only need to make one size of shoes, regardless of gender or height. They have collected data on gender, shoe size.
in a certain city the daily consumption of electric power in millions of kilowatt-hours is a random variable x having a
We conclude that memory of food intake in the distant past is fair to poor." Explain to your audience why r=0.217 points to this conclusion.
An Electric Co. Operates a fleet of trucks that provide electrical service to the construction industry. Monthly mean maintenance cost has been $75 per truck.
Public health statistics indicate that about 26.4% of Americans smoke. Suppose a random sample of 50 people is selected. Approximate the distribution of the same proportion with the normal model.
Calculate a regression that examines whether or not you can predict if a student wants a lecturer to be extroverted using the student's extroversion score.
A 6 × 8 array containing the ages of moviegoers
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