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Let X be a normal distributed random Variable with u=100 and o=10. the probability that X is between 70 and 100 is:
a. 8%
b. 84%
c. 95%
d. answer not listed
You are the sales manager of a life insurance agency. All of your sales representatives are successful in selling a policy on 30% of their sales calls. Determine the probability of a sales representative's selling at least four policies if he (she..
The following frequency distribution was obtained. The data values are in hours. Construct a histogram for the data .
A researcher is interested in estimating noise levels in decibels at area urban hospitals. She wants to be 90% confident that her estimate is correct. If the standard deviation is 4.13, how large a sample is required to get the desired information..
Need to come up with a regression model to forecast monthly sales of cold beverages for the next year. What variables might be included in the model?
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, and height
64% of men consider themselves professional baseball fans. You randomly select 10 men and ask each if he considers himself a professional baseball fan.
Then describe trade-offs which will happen when you lower sample to $10,000 to meet their budget.
What is it that differentiates a binomial probability distribution from any other probability distribution? & The employees at a General Motors assembly plant are polled as they leave work.
What is the probability that both defective lights will be found within three trials?
What test can be performed to compare the percentage of participants who developed abnormal triglyceride levels between the vitamin A group and the trace group? Implement the test in Problem 10.68, and report a two tailed p value.
The probability that an American CEO can transact business in a foreign language is .20. Ten American CEOs are chosen at random.(Round your answers to 4 decimal places.)
Woodco manufactures tables and chairs. Each table and chair must be made entirely out of oak or entirely out of pine. A total of 150 board feet of oak and 210 board feet of pine are available.
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