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Assume that the data has a normal distribution, n = 45 and that σ is known. Find the appropriate critical value used to test a null hypothesis about a mean with α = 0.05 for a right-tailed test....

A regression analysis provided information about a regression line that can be used for predicting sunshine values from rainfall values using the data from 25 months in the sample. The student now...

Let X be the score when a cube with faces 1 through 6 is rolled. You are given  that E(X)= 3.5 and SD(X) =1.708. A cube with faces 1 thru 6 is rolled 50 times. Which of the following most...

A large tank of fish from a hatchery is being delivered to a lake the hatchery claims that the mean length of the tank is 15 in and the standard deviation  population is unknown. A randomly sample...

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