The table shown with this question counts the number of calls that arrive at a telephone help desk during the hours of 1 to 3 p.m . on 5 weekdays. The company uses the same number of employees to...

The table shown with this question counts the number of calls that arrive at a telephone help desk during the hours of 1 to 3
_p.m. on 5 weekdays. The company uses the same number of employees to staff the center for each of these days. Test the null hypothesis that the calls are uniformly distributed over these days, agreeing with the staffing policy. Find the

(a) Degrees of freedom of
.

(b) Expected number of calls that arrive on Friday, if
 holds.

(c)
.

(d)
-value for testing H0.