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Automobiles manufactured by the Efficiency Company have been averaging 42 miles per gallon of gasoline in highway driving. It is believed that its new automobiles average more than 42 miles per gallon. An independent testing services road-tested 36 of the automobiles. The sample showed an average of 42.8 miles per gallon with a standard deviation of 1.2 miles per gallon.
To test is there any significant difference among two proportions. The Damon family owns a large grape vineyard in western New York along Lake Erie.
A regression model between sales (Y in $1,000), unit price (X 1 in dollars) and television advertisement (X 2 in dollars) resulted in the following function: = 7 - 3X1 + 5X 2 For this model SSR = 3500, SSE = 1500, and the sample size is 18...
A sample of size 36 results in a sample mean of 7.1. The value of the test statistic is ____
Solve linear program graphically
A certain airplane has two independent alternators to provide electrical power.
Describe the optimal solution to a linear programming problem. comprise the following constraints from a two -variable linear program.
If alternate hypothesis mention that m doesn't equal 4,000, determine the rejection region for the hypothesis test?
Let X 1 , X 2 , X 3 , X 4 be a random sample from a Poisson distribution with parameter λ and let Y = X 1 + X 2 + X 3 + X 4 . You decide to test λ = 1.60 versus λ
Smaller the p-value in test of hypothesis, the more important the results are.
Explain how much should the airport authority be willing to pay for perfect information about the success of a brand new airport.
Compute the 95% confidence interval around the mean of each of the three groups and plot the confidence interval in the space provided above.
A banks loan officer rates applicants for credit. The ratings are causally distributed with a mean of 200 also a standard deflation of 50.
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