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Give an example of a hypothesis test you could perform at a Surgery Center and what the hypotheses would be. State the null and alternative hypotheses in proper format. Would you see this as a one time test or one that would be repeated on a regular basis?
Using goodness-of-fit test and.01 level of significance, find out whether accidents are evenly distributed all through the day. Write a short description of your conclusion.
A shipment of 250 netbooks contains 3 defective units. Determine how many ways a vending maching company can buy three of these units and receive a) no defective units b) all defective units c) at least one good unit.
A local politician wants an estimate of the proportion of the population who support her fiscal policies. She wants the estimate to be within .06 of the true proportion. Assume a 95 percent level of confidence.
Bill is doing a project for you in the marketing department. In conducting his analysis regarding consumer behavior and a new product that has come out
An article in Annals of Mathematical Statistics reports the following data on the number of borers in each of 120 groups of borers. Does the Poisson pmf provide a plausible model for the distribution of the number of borers in a group?
A part of our research design is the data collection process. We often do this by sampling. Differentiate between random and nonrandom sampling methods.
If the population mean is 36, are the serial killers significantly more introverted at the .05 level? Perform the appropriate one-tailed test.
Due to increase in product demand, management needs to increase labor production hours by an estimated 270 hours. Any-Business currently has 30 production employees whose hourly wages varies from $7.50 - $8.50 per hour.
Assume that the two groups come from populations with the same standard deviation. Test the claim that the mean score of women is equal to a mean score of men using a 0.02 significance level.
Compute the appropriate test statistic to test Ho: p = 80/100 vs. Ha: p > 80/100.
Their average age was 19.1 years with a standard deviation of 1.5 years. What is the best point estimate for the population mean?
Estimating a linear regression equation to predict the future values of the dependent variable Y.
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