The thicknesses of 67 randomly selected stainless steel sheets were found to have a variance of 3.75. Construct the 98% confidence interval for the population variance of the thicknesses of all stainless steel sheets in this factory. Round your answers to two decimal places.

If rt is greater than ba, which statement must be true ?

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 2: 1? submit