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1. For a population that is normally distributed with a mean of 100 and standard deviation of 10, what value would separate the smallest 20% of values from the next larger 80% of values?
2. A population is normally distributed with a mean of 30 and a standard deviation of 5. What is the probability of randomly sampling this population and getting a value of 25 or less? Give answer as 0.XXXX
3. Give the z value for z notation: z(0.44) Give answer as X.XX
show how to copy and paste the results of the two-tailed hypothesis test on a report.show how to figure the
The Big Triple at the local racetrack consists of picking the correct order of finish of the first three horses in the ninth race. If there are 12 horses entered in today's ninth race, how many Big Triple outcomes are possible?
suppose 3 of cotton fabric rolls and 3 of nylon rolls contain flaws. of the rolls used by a manufacturer 70 are cotton
Acme Taxi has two taxi cabs. The manager tracks the daily revenue for each cab. Over the past 20 days, Cab A has averaged $76.00 per night with a standard deviation equal to $11.00.
can a test of significance chi-square show a statistically significant relationship while a measure of association
Then explain your answer to someone who has never had a course in statistics (but who is familiar with mean, standard deviation, and Z scores).
a random variable has the following probability distribution x px 0 0.10 1 0.20 2 0.35 3 0.26 4 0.09 a compute the
a process is said to be of six-sigma quality if the process mean is at least six standard deviations from the nearest
suppose a fast food restaurant wishes to estimate average sales volume for a new menu item. the restaurant has analyzed
Write in interval notation the real numbers greater than or equal to 3 and less than 9. Translate the verbal expression into an algebraic expression: a cubed minuis b cubed.
Conduct a test to determine whether blood lactate level (y) is linearly related to perceived recovery (x). Use alpha = .05. Find the p-value for testing the hypotheses you gave in the previous problem. Show all decimal places in your answer.
Determine the probability that at most 4 fish will be killed?
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