the two intervals between each other for the p value is needed !

1. (20 points) Bottles of a popular cola drink are supposed to contain 300 milliliters (ml) of cola. There is some variation from bottle to bottle because the filling machinery is not perfectly precise. The distribution of the contents is normal with standard deviation o = 3 ml. A student who suspects that the bottle is under-filling measures the contents of six bottles. The results are 299.4 297.7 301.0 298.9 300.2 297.0