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Given the amount of vitamin C in a medium orange is normally distributed with a mean of 70mg and a standard deviation of 6 mg. Find the probability of selecting a sample of 9 oranges with a sample mean of at least 71.5mg?
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank-sum test, evaluate the significance of the results, assuming there are no ties.
Determine the regression equation. Determine the coefficient of determination. Do you think Mr. Profit should be satisfied with using the size of the offering as the independent variable?
What are the null and alternative hypotheses to test if the new battery has longer life than the old battery? Draw a conclusion for the hypothesis test. Make sure you state your conclusion in the context of the problem.
The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records
In any given month, the probability that a manufacturer will have an accident is 35%, What is the probability that in a 6 month period, the manufacturer will have two or fewer accident free months?
Welcome a woman taking the initiative in asking for a date. What is the probability that seven (7) of the men say NO.
a) How is it possible that the minimum of the 365 values is 0 inches and the median is also 0 inches? b) Describe the distribution as symmetric, left-skewed or right-skewed.
Tom works the night shift at a gas station on the edge of Champaign. One night he mixed 3 stale doughnuts in with 13 fresh doughnuts. That night 6 customers bought one doughnut each, selecting them at random. What is the probability that at least ..
A sample of the personal files of eight male employees revealed that during a six month period they lost the following number of days due to illness 2, 0, 6, 3, 10, 4, 1, 2. Calculate the standard deviation. show your work.
Its known that 5% of all AA bateries made by Power Manufactures are defective. AA batteries are sold in packs of 4. Find the probability that a pack of 4 has exaclty 2 defective batteries.
The lead time is 2 weeks.If you were asked to create an (R,s,S) policy for this, what parameters would you pick? Give your reasons.
Sun Microsystems has approximately 50% of the high-end Unix machines market with its closest competitor being IBM. Suppose that 15 firms were in the market to purchase a high-end Unix machine. Assume that these firms listened to sales pitches by a..
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