## The paired samples shown in the accompanying table have been obtained

Question The paired samples shown in the accompanying table have been obtained from normally distributed populations. Construct a 9595% confidence interval estimate for the mean paired difference between the two population means.LOADING… Click the icon to view the data table.Let muμdequals=muμ1minus−muμ2. Construct a 9595% confidence interval estimate for the mean paired difference between the two population means.nothingless than or equals≤mu Subscript dμdless than or equals≤nothing(Round to four decimal places as needed.)

## If, in a (two-tail) hypothesis test, the p-value is 0.0055

Question If, in a (two-tail) hypothesis test, the p-value is 0.0055 0.0055, what is your statistical decision if you test the null hypothesis at the 0.040.04 level of significance?Choose the correct answer below?A.Since the p-value is greatergreater than alpha commaα, rejectreject Upper H 0 .H0.B.Since the p-value is lessless than alpha commaα, do not rejectdo not reject Upper H 0 .H0.C.Since the p-value is lessless than alpha commaα, rejectreject Upper H 0 .H0.D.Since the p-value is greatergreater than alpha commaα, do not rejectdo not reject Upper H 0 .

## For the following hypothesis test, determine the null and alternative

Question For the following hypothesis test, determine the null and alternative hypotheses. Also, classify the hypothesis test as two-tailed, left-tailed, or right-tailed. The mean length of imprisonment for motor-vehicle theft offenders in this country is 19.219.2 months. A hypothesis test is to be performed to determine whether the mean length of imprisonment for motor-vehicle theft offenders in this city differs from the national mean of 19.219.2 months. Choose the correct null and alternative hypotheses below.A.Upper H 0H0: muμgreater than

## Fill in the blank to complete the statement.

If we reject

reject

Question Fill in the blank to complete the statement.

If we reject

reject the null hypothesis when the statement in the nullnull hypothesis is true, we have made a Type _______ error.If we rejectreject the null hypothesis when the statement in the nullnull hypothesis is true, we have made a Type ▼ IIIIUpper II error.

## Coal is carried from a mine in West Virginia to a power plant in New

Question Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 65 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 65 tons and standard deviation σ = 1.5 ton. (a) What is the probability that one car chosen at random will have less than 64.5 tons of coal? (Round your answer to four decimal places.)