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Provide a brief description of a real-world example in which one measure of central tendency provides useful information while another measure of central tendency provides meaningless (or even misleading) information. Also explain which of the three measures of central tendency would be appropriate for your example, which would be inappropriate, and why. Then identify what you think is the best measure of variability to use for your example and explain why you believe it to be better than the others.
Make a worksheet in Excel for your calculations. (b) Make a histogram of the data. Would you be justified in using a parametric t test that assumes normality? Explain.
Find a 99% confidence interval for the population mean number of weekly miles.
Computing the mean value for the given data - What is the new mean for the class and frequency distribution graph, what type of graph should be used
A firm keeps account for 28 customers. 12 of these are defined as new customers and 14 are locally based. If just 3 new customers live locally, how many established customers do not live locally?
What is the probability that at least one inspector will find a defective widget?
A newspaper article discussed the opening of a Whole Foods Market in the Time=Warner building in NYC. What assumption is necessary about the population distribution in order to perform the test
30% of the time the wife is listening to the radio. Find the probability that:a. If the wife is listening to the radio, the husband is also listening to the radio.
At the .05 significance level, can we conclude that the guideline is still reasonable?
Suppose that you want to compare the mean size of health care claims submitted by five groups of policyholders. Ten claims are randomly selected from amongst the existing claims for each of the five groups. The data is shown in the following table..
Warren Road MacBurger that the mean waiting time was 2.75 minutes. At the 0.05 significance level, can we conclude that the mean waiting time is less than three minutes?
What symbol is used to represent the mean of the sampling distribution of y-(ybar)? Explain and what symbol is used to represent one value from the sampling distribution of y-(ybar)? Explain
Standard deviation was 8.2 hours. What is the 95% confidence interval for the mean number of hours worked per week for the population of u.s men?
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