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The Empirical Rule and Chebychev's Inequality both relate the percent of data points to the number of standard deviations above or below the mean. What is the significant difference between the two? Explain what each say about the percent of data values that are 2 standard deviations away from the mean.
for the standard normal distribution shown on the right find the probability of z occuring in the indicated region.its
Impact of September 11 Palos Co. commonly invests some of its excess dollars in foreign government short-term securities in order to earn a higher short-term interest rate on its cash.
State the claim mathematically. Then write the null and alternative hypothesis. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed.
Explain the difference between the completely randomized design and the randomized block design. Discuss in the context of a gasoline refining process. Under what conditions would you prefer to use each design?
blaymount amateur dramatic society is staging a play and wants to know how much to spend on advertising. its objective
The following data are credit default swap values:14 6, 10, 12, 13, 18, 21 (in trillions of dollars). Draw a pie chart of these amounts. Find the mean and median.
Explain how you would change the simulation procedure if the assumption was that everyone was randomly guessing, so that the probability of a correct guess was .20 each time.
a market research study is being conducted to determine if a product modification will be received well by the public.
averaging 204 pins with a standard deviation of 24.9, can one conclude at a level of significance of .01 that the new ball has improved his game?
A random sample of 225 fathers from Littleton, yielded 97 who did not help with child care. Using a .05 level of significance test the claim that the proportion is at least 34%.
the alphacor company experiences some type of failure on its computer network on average once every 4 hours. assume
question the yield on a general obligation bond for the city of davenport fluctuates withthe market.the monthly
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