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A manager needs to decide between 2 machines to put into market following a Weibull distribution.
Machine X test unit cost $3000 with beta=3 and theta=500, Machine Y test unit cost $2000 with beta=3 and theta=400
If the machines oil fixtures has life of 20 hrs, which machine goes to market first?
No, there is not sufficient information to reject the hypothesis that the proportion of cats and the proportion of dogs that sleep more than 10 hours per day are the same because the test value -0.65 is inside the acceptance region (-1.96,1.96).
Determine the probability that Mexican American male in the 20 -74 age range has serum cholesterol value greater than 240 mg/dl.
Can we conclude that there is a positive association between the size of the home and the selling price? Use the .05 significance level.
95% confidence interval evaluate for proportion of Americans who believe Abraham Lincoln is United States' most outstanding President is 65% to 75%. If more precise estimate is requested, then confidence level.
Use empirical Rule to evaluate proportion of costs within 2 standards deviations of mean. Write down these limits.
It is known that 60 percent of all registered voters in the 42nd congressional District are Republicans. There registered voters are selected at random from the district. Compute the probability that exactly 2 of the 3 selected are Republicans, u..
The times needed to fall asleep are assumed to follow a normal distribution. The results for the two nights for the ten volunteers are shown below:
Construct a 95 percent confidence interval for the true mean.
The Graduate Management Admission Council, who administers the test, claims that the mean total score is 529. Suppose a random sample of 8 students took the test, and their scores are given below. 699, 560, 414, 570, 521, 663, 727, 413 Use α = .05..
What is the probability that the kickoff will go between 60 and 75 yards if the average kickoff is 50 yards with a variance of 49?
Evaluate the performance of this decision.
Develop an appropriate forecast model for the given problem whereas the student population has remained constant during this period.
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