Statistics and Probabilities

According to an instructor, a trainee's average weight is 55 kilos, with a standard deviation of 8.9 kg. Thirty trainees were chosen at random and had an average weight of 49.3 kg. Is the instructor's assertion true at the 0.05 level of significance?

1st Step:

1. What is the average weight for H0? 2. What is the average weight for H1? 3. What is the symbol for H0? 4. What is the symbol for H1?

2nd Step:

5. What is the type of test? 6. What is the critical value? 7. What is the ?

3rd Step 8. What is z in Test Statistic?

4th Step

Reject the H0 if (______). Otherwise, we do not reject H0.

5th Step:

Since (________), then the (______) the H0.

6th Step:

Thus, the claim of the coach is (________). Therefore, the average weight of (______).