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The mean resting pulse rate for a large group of varsity athletes was 72 with a standard deviation of 9.46. What percentage of the group had pulse rates of 70 or lower?
a fair coin is repetitively tossed 2n times n is very large. what is the probability for the number of heads to be in
Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made by Bank of America. A key measure of customer satisfaction is the response (on a scale from 1 to 10) to the question
Valley Fruit Products Company has contracted with apple growers in Ohio, Pennsylvania, and New York to purchase apples that the company then ships to its plants in Indiana and Georgia
Why is population shape of concern when estimating a mean? What does sample size have to do with it?
Solve x^2 = -2 where x is a real number. Simplify your answer as much as possible.
a explain the difference between a type i and type ii error and why failing to reject a null hypothesis is not the
These individuals are then examined and categorized as to whether they have a heart disorder. The observed frequencies are as follows:
The width of a confidence interval will be:
Let z be a standard normal random variable and calculate the following probabilities:
Suppose that daily gross income is normally distributed. Determine the relative frequency corresponding to daily gross income of $520 or more?
A film developer claims that the mean number of pictures developed for a camera with 24 exposer is less than 22. If the hypothesis test is preformed, how should you interpret a decision a)reject the null hypothesis and b) fail to reject the null h..
Find the most appropriate statistical procedure: Teacher of low-level reading group interested in average score for group of 25 students?
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