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Probability calculation using Hyper Geometric distribution. Assume that a hand of 12 cards is dealt from a normal deck of 52 playing cards. What is the probability that of the 12 cards, 3 will be diamonds, 3 will be clubs, 3 will be spades, and 3 will be hearts?
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
What sample size would be needed to estimate the true proportion of students at your college
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
The accompanying two histograms represent the distribution of acceptance rates (percent accepted) among 25 business schools in 1995. The histograms use different class intervals, but are based on the same data. In each class interval, the left endpoi..
What is the probability that none are a commercial success?
What is the p-value associated with the above sample result?
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
To test the given claim using Single Proportion Z test.
Create a 99% confidence interval estimate of population mean amount of paint included in a 1 gallon can.
An instructor claims the average time to take a statistics test is greater than 39 min. As, if a sample of 33 students took 43 min. is the instructor's claim true?
Compute β-error of test in part (a) if true difference in mean burning rate is 2.5 centimeters per second.
What sample size and acceptable level would result in a probability of .05 that a good batch will be rejected and a probability of .10 that a bad batch will be accepted?
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