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Explain the concept and application of uniform distribution.
an airline carriers 100 passengers and has doors with a height of 78 inch. height of men are normally distributed with
What is coefficient of determination? Calculate F statistic. (Hint: You must complete the table to answer the question.)
An average department store sells 350 men's suits per year. The men's suit departments at a particular national chain of stores claim they sell more than the industry average. In 35 of their stores, they sold, on the average, 430 suits per year wi..
Standard deviation = 30 (Source: U.S. National Center for Health Statistics). Levels above 200 warrant attention. Find the probability that a teenage boy has a cholesterol level greater than 200.
Thirty randomly selected students took the calculus final. If the sample mean was 79 and the standard deviation was 8.5, construct a 99% confidence interval for the mean score of all students.
Vehicles heading west on Front Street may turn right, left or go straight ahead at elm street. The city traffic engineer believes that half to the vehicles will continue straight through the intersection.
suppose bolts are being manufactured using a process so that it is known that the length of the bolts follows a normal
Is this a statistically significant difference? Write the two statistical hypothesis and conduct the appropriate test with your conclusion justified.
Assume that the population is normally distributed. Can we conclude at the 0.01 level of significance that the mean waiting time on special orders at this furniture store exceeds 28 days? Perform a one-tailed test.
what does p .05 mean? what are some misconceptions about the meaning of p .05? why are they wrong? should all
Suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. The restaurant has analyzed the sales of the items at a similar outlet and observed the following results:
scores on the act test have a distribution that is approximately normal with mean 21.1 and standard deviation 5.1.what
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