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The amount of flour used per day by a bakery is a random variable X that has an exponential distribution with mean equal to 4 tons. The cost of the flour is proportional to Y=3X+1.
a) Find the p.d.f of Y.b) Use the answer in (a) to find E(Y).
Sample is found to have a mean of 80.6,a standard deviation of 1.4 test the claim that the true mean of this process is different than 80. use 10% level of significance.
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If we repeated this procedure many, many times, only 5 percent of the 95 percent confidence intervals would fail to include the mean Math SAT score of the population of all
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Is this a one-tailed or two-tailed test? Explain.- Write the null and alternative hypotheses.- In this context, explain what would happen if the professor makes a Type I error
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