Thomas Economic Forecasting Inc. and Harmon Econometrics have the same mean error in forecasting the stock market over the last ten years. However, the standard deviation for Thomas is $30$ points and for Harmon is $60$ points. At the $0\mathrm{.}05$ significance level, can we conclude that there is more variation in the forecast given by Harmon Econometrics?

Select one:

a$.$

Ho is rejected. There is more variation in the Harmon forecast.

b$.$

Ho is rejected. There is not more variation in the Harmon forecast.

c$.$

Ho is not rejected. There is not more variation in the Harmon forecast.

d$.$

$4\mathrm{.}85$

e$.$

Ho is not rejected. There is more variation in the Harmon forecast.