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A manufacturer of tow chains finds that the average breaking point is at 3,500 pounds and the standard deviation is 250 pounds. if you pull a weight of at least 4200 pounds with this tow chain, what percentage of time would you expect the chain to break.
Evaluate the standard deviation - use the conservative value for the degrees of freedom, Assume the two groups are independent and the data are approximately Normal. Let µ 1 and µ 2 represent the mean heart rates we would observe for the entire po..
Find the probability that in a given year a) exactly one major hurricane will strike the U.S. mainland, b) at most one major hurricane will strike the U.S. mainland.
The annual demand for a product is 1,000 units. The company orders 200 units each time an order is placed. The lead-time is 6 days, and the company has determined that 20 unites should be held as a safety stock.
The probability I'll jog today is 0.90 and the probability you'll jog tonight is 0.30. Find the probability:
Use the Kolmogorov-Smirnov test to discover whether the distribution of location of accidents is uniformly distributed for the month of September
Identify and briefly discuss two important concepts ( Prediction and Regression/ Correlation or Regression) applicable to analytical methodology.
Compare the standard deviation for the heights of males and the standard deviation for the heights of females in the class.
Five percent of the respondents gave $25,000 or more to charity over the previous year. Develop a 95% confidence interval for the proportion who gave $25,000 or more to charity.
You are asked to match three songs with the performers who made those songs famous. if you guess, the probability distribution for the number of correct matches is:
Federal administration stated that unemployment level in US is 8.6% (population proportion = 0.086). A hypothesis test is to be performed to decide whether unemployment level in NY State differs from national level.
Compute the value of the sample correlation coefficient between weekly sales and shelf space. Is the correlation between weekly sales and shelf space significant at the .01 level of significance? What is the estimated regression equation?
Determine the least squares equation. On the basis of this information, what are the estimated sales for 2005?
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