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We know that IQs are normally distributed with a mean of 100 and standard deviation of 15.
Suppose you want to verify this, so you take 100 random samples of size four each and, for each sample, find a 95% confidence interval for the mean IQ.
You expect that approximately 95 of these intervals will contain the true mean IQ (100) and approximately five of these intervals will not contain the true mean. Use simulation in Excel to see whether this is the case.
A single box contains 12 gloves, and it has been determined that 6 percent of gloves are defective. What is the likelihood that a box of gloves gets rejected?
a study of the attendance at the university of alabamas basketball games revealed that the distribution of attendance
Describe how a domestic fast food chain with plans for expanding into China would be able to use a forecasting model.
The researcher then records the level of activity for each child during a 30 minute session on the playground. Is this an experimental or a correlation study? Explain your answer.
four types of solar energy collectors were collected. the data is in the accompanying file.a construct an anova table.b
Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
A universal life policy provides a death benefit equal to the account value plus 50 000. Monthly premiums are 3000. Find AV74 and COI73.
assume there are 18 homes in the quail creek area and 9 of them have a security system. four homes are selected at
the manager of a department store wants to determine what proportion of people who enter the store use the stores
If you were an auditor and observed more than 30% with improper documentation, what would you conclude about the firms claim that only 20% suffered from improper documentation and why?
tompkins associates reports that the mean clear height for a class a warehouse in the united states is 22 feet. suppose
A straight rod is formed by connecting three sections A, B and C, each of which is manufactured on a different machine. The length of section A, in inches has a normal distribution with mean 20 and variance 0.04.
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