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(A) Find the binomial probability P(x = 5), where n = 13 and p = 0.70.
(B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation.
(C) How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without going through all the calculations.
At.05 significance level, is there a difference in mean number of calls per day between 2 employees? Compute the p -value?
Women in the U.S. Air Force have hands that are 6.9 inches on the average (from the tip of the middle finger to the heel of the hand). The standard deviation is 0.34 inches. Assume that hand length is normally distributed.
If there is an outage, there is a .05 probability that the resulting losses will be very large, approximately $ 80 million in lost earnings. Also, it is estimated that there is a .95 probability of only slight losses of around $ 1 million. What is..
IS there any evidence that a freshman's chances to graduate may depend upon what kind of high school the student attended? Describe.
Set up null hypothesis for associated F test.
In a regression analysis involving 30 observations, the following estimated regression equation was obtained.
Carry out the test for the variance of girls score is not significantly less than the given data.
Using the levels of significance given below: What is the rejection point at α = .10 and indicate if you would accept or reject H o ? t .10 =
At.01 level of significance, is proportion of seeds which germinate dependent on seed type?
Let z represent the standard normal variable and suppose a value is randomly selected. Find each of the following probabilities by:
Supposing that both populations are normally distributed, construct a 99% confidence interval for the ratio of the two population variances.
Calculate sample proportion and then also calculate a 99% confidence interval for true population proportion, p.
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