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The random variable x is known to be uniformly distributed between 70 and 90. The probability of x having a value between 80 to 95 is:
a) 0.75
b) 0.5
c) 0.05
d) 1
She then selects a sample of 102 football players and finds that their average math SAT is 460. Use alpha =.01 to perform the appropriate hypothesis test.
No estimate of the population proportion is available. How large a sample is required?
Is there sufficient evidence to support the claim that site has an effect on the amount of pesticide?
Describe a specific application of statistics that either has a direct effect on you or your life.
The chi-square goodness of fit is______________a one-tailed test with the rejection region in the right tail.
Provided that the selected student excels in sports, determine the probability that the student is a boy?
Assume that the smiling time of eight-week old babies, in seconds, follows a uniform distribution between 0 and 23 seconds, inclusive. This means that any smiling time from 0 to and including 23 seconds is equally likely.
Suppose that the number of babies born during an hour at a hospital's maternity wing follows a Poisson distribution with a mean of 4 per hour.
Salary information for a random sample of male and female employees of a large company is shown below.
Now assume institutional cache is used. Hit rate for cache is 0.6. Determine the total average response time.
What is the probability that all three students pick exactly the same card?
Describe the types of probability -example of classical probability, empirical probability, or subjective probability.
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