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Find the value of t α/2 and n = 18 for the 99% confidence interval .B. find the value of t α/2 and n = 15 for the 98% confidence interval.
The maker of refrigerators buys bolts from two suppliers, and it is very important that the mean widths of the bolts received from both suppliers are equal since they must be used interchangeably.
Test the claim that the actual amount of coke exceeds 12 ounces. (Note: You can use the value of $s$ as the value of $sigma$ for your hypothesis test).
Inspection of student data generated during pre/post treatment surveys shows that among 10 subjects, 7 had higher scores after an experimental treatment
Compute a 95% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24 and 59. Change the number from 59 to 24 and recalculate the confidence interval.
Recent medical research demonstrated there is a strong (r=.60) correlation between the excessive weight and incidences of breast cancer. How can we interpret this statement?
A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising.
What is the maximum water producing capacity that the station should keep on line for this hour so that the demand will have a probability of only 0.01 of exceeding this production capacity?
The Department asks you to estimate a model that could ?t this situation. a) Do you think that a multinomial logit is a suitable model for this problem? Explain why.
Verify that this is valid density function. Find out probability that weight is smaller than 24 ounces.
Then test to see whether it considerably varies from 0 [use alpha = 5%]. Don't forget to identify the null and alternative hypotheses.
Create Gantt chart using MSP. Suppose the 5 day workweek, compute critical path of the project.
Write a brief summary of the distribution of life expectancy.
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