The Harry Potter books and movies grossed huge sums of money. The table below lists the amounts

Question:

The Harry Potter books and movies grossed huge sums of money. The table below lists the amounts grossed (in millions of dollars) during the first few days of release of the movies Harry Potter and the Half-Blood Prince and Harry Potter and the Order of the Phoenix. Use a 0.05 significance level to test the claim that Harry Potter and the Half-Blood Prince did better at the box office. Apart from this hypothesis test, what is a better way to judge the validity of the claim?

Assume that the paired sample data are simple random samples and that the differences have a distribution that is approximately normal.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...