Assume that 25 models were run (n=25), and it was found that the mean value of slope coefficient B1 was 10, with a standard deviation of 2. Remember to assume two-tailed values for all computations. Complete the application exercise using whatever resources and methods are desired. You may work out the problems on paper if desired or use an online calculator and include only your final solutions to each equation in the submission boxes below. 

Q1: Compute the standard error of the mean ( s/sqr n)

Q:2 Compute the T confidence interval at the 95% level.

Q3: If you ran a new data set, and found the regression line to be Y^ = 12x+0.83 would this be an expected value with the 95% CI, or would this data set now be of concern?

Q4: Compute the T confidence interval at the 99% level.

Q5: At the 95% confidence level, determine the sample size needed so that the margin of error of the confidence interval is less than 0.1.