Let u, and u, denote true average densities for two different types of brick. Assuming normality of the two density distributions, we will test H,: H- Hy= 0 versus H,: P- Py#0 using the following data: n = 5. X= 22.66, s,= 0.164, and n, = 5. Y= 21.9, s, = 0.240. %3D Answer the following questions. 1) The number of degrees of freedom for the test statistic is O 5 O 7 O 6 O 8 2) The value of the test statistic is closest to O 3.61 O 3.289 O 5.846 O 2.674 3) The decision for H, is O plausible reject

The slope D of the sample regression line provides a measure of O1.the change in the population value of the dependent variable for every unit change In the Independent varlable. O 2. the change in the population average value of the dependent varlable for overy unit change in the independent varlable, 03.the change In the population value of the independent varlable for every unit change in the dependent varlable. 04.the change in the population average value of the independent variable for every unit change in the dependent varlablo. O 5.the change in the estimated population value of the dependent variable for every unit change in the Independent varlable. O 6.the change in the estimated population average value of the dependent variable for every unit change in the independent varlable. O 7. the change in the estimated population value of the independent variable for every unit change in the dependent variable, O 8. the change in the estimated population average value of the…

For each of the following histograms, determine whether the vertical axis has been labeled correctly.

The area beneath the normal density curve is separated into three regions by the values a and b. Set the mean of the normal density curve to 4.00, the standard deviation to 0.33, the z-value of a to -3.03 and the z-value of b to be 3.03. determine the area to the left of a, the area between a and b, and the area to the right of b.