A newly hired basketball coach promised a high-paced attack that will put more points on the board than the team's previously tepid offense historically managed. After a few months, the team owner looks at the data to test the coach's claim. He takes a sample of 16 of the team's games under the new coach and finds that they scored an average of 90 points with a standard deviation of 9 points. Over the past 10 years, the team had averaged 88 points. What is the value of the appropriate test statistic to test the new coach's claim at the 1% significance level?

Multiple Choice

• t₁₅ = 0.33

z = 0.89

z = 0.33

t₁₅ = 0.89