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The following data were collected as part of a study of coffee consumption among male and female undergraduate students. The following reflects cups per day consumed: Generate a 95% confidence interval for the difference in mean numbers of cups of coffee consumed between men and women.
Male: 3, 4, 6, 8, 2 , 1 , 0, 2Female: 5, 3, 1, 2, 0, 4, 3, 1
Determine the probably of selecting a female or an accounting major? Which rule of addition did you apply?
At the 5% level of significance, does this result support the conjecture?
Random number generation based on discrete distribution and evaluate the average queue length, waiting time, and percentage utilization for each system.
Suppose the population mean is 50.6 pounds with a population standard deviation of 1.62 pounds. Suppose we take thousands of samples with a sample size of 5.
In this research report you will be analysing a set of data of which can be found in an EXCEL file available for download in the Assessment section of the Blackboard site.
The diameters of grapefruits in certain orchard are normally distributed with mean of 6.95 inches and a standard deviation of 0.75 inches. Show all work.
1) There are 500 employees in a firm, 45% are female. A sample of 60 employees is selected randomly. a) Determine the standard error of the proportion.
Calculate probability that the sample would have a mean:
f x has a normal distribution with mean µ=15 and standard deviation σ= 3, describe the distribution of x values for sample size n, where n = 4, n = 16, and n = 100. How do the x distributions compare for the various sample sizes?
A store has an average of 25 people arriving each minute to checkout and each person on the average require 4 minutes to be processed at the checkout. What is the minimum number of cashiers required?
Based on the model N(1152,84) describing Angus steer weights, what are the cutoff values for.
This morning the office you are monitoring has eight office visits on the schedule. What is the probability that:
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