Find the critical value.

Determine the critical value for a right-tailed test of a population mean at the a = 0.005 level of significance with 28 degrees of freedom.

The degrees of freedom are given by

And since we are conducting a right tailed test we need to find in the right tail of the t distribution with 28 degrees of freedom a value who accumulates and we got:

Step-by-step explanation:

For this case we are assuming a right tailed test for a parameter, let's say

The system of hypothesis for this case are:

Null hypothesis:

Alternative hypothesis:

Where is the value to check

The degrees of freedom are given by

And since we are conducting a right tailed test we need to find in the right tail of the t distribution with 28 degrees of freedom a value who accumulates and we got:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7

4 candies

step-by-step explanation:

7 x 28 = 196

200 - 196 = 4 candies remaining.