Black Jack A gambling casino records and plots the mean daily gain or loss from five...

Black Jack A gambling casino records and plots the mean daily gain or loss from five blackjack tables on an ̅x chart. The overall mean of the sample means and the standard deviation of the combined data over 40 weeks were = $10,752 and s = $1605, respectively.

a. Construct an ̅x chart for the mean daily gain per blackjack table.

b. How can this ̅x chart be of value to the manager of the casino?