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Using your experience from previous or current employment, provide a business example where you could use a t-test to assist in a business decision. State the null and alternative hypothesis. The null and alternative should be the exact opposite of each other and the t-test will be looking for a difference between two groups.
A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 98% confidence interval for the true proportion of women shoppers who shop on impulse?
Demonstrates clearly and fully the ability to use Excel to perform the correlation for the data set.
What is the difference between common cause variation and special cause variation?
Investigate the cost of a home mortgage and to determine the monthly payment.
This assignment involves displaying an understanding of an independent t-test. Based on my hypothetical research question: What do early childhood educators report about their experiences with fathers' involvement in their programs?
If a group is chosen from a population on the basis of sharing the same percentages of trait features as known to exist in the population, then the group so chosen would constitute:
He randomly selects a sample of 10 items of the procduct from a large lot ready to be shipped. He (given that) the true proportion of perfect condition items is only 80% what is the probability that the lot will not be shipped?
Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.
Many newspapers carry a certain puzzle in which the individual must unscramble letters to form words. How many ways can the letters of YARNLE be arranged?
The mean time to download an Google video is 1 minute 30 seconds. Suppose the download time is normally distributed with standard deviation of 20 seconds.
Computing probability values using normal distribution - How many students earned between $20,000 and $40,000
A medical research team studied the ages of 34 patients who had strokes caused by stress. The frequency distribution below summarizes the results. When trying to understand the stroke data, what would be the advantage of looking at a histogram ins..
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