Test the claim that the mean GPA of night students is smaller than 2.5 at the .005 significance level. Based on a sample of 60 people, the sample mean GPA was 2.49 with a standard deviation of 0.08

The test statistic is:
(to 2 decimals)

The critical value is:
(to 2 decimals)

The amount of energy it takes to lift a box might be a function of which of the following

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample