Jamie, a bowler, claims that her bowling score is less than 168 points, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 1% significance level, to persuade them. She bowls 17 games. The mean score of the sample games is 155 points. Jamie knows from experience that the standard deviation for her bowling score is 19 points. α-0.01 (significance level) What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places? Provide your answer below: Test statistic

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Jamie, a bowler, claims that her bowling score is less than 168 points, on average. Several of her teammates do not believe
her, so she decides to do a hypothesis test, at a 1% significance level, to persuade them. She bowls 17 games. The mean
score of the sample games is 155 points. Jamie knows from experience that the standard deviation for her bowling score is
19 points.
α-0.01 (significance level)
What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places?
Provide your answer below:
Test statistic
Transcribed Image Text:Jamie, a bowler, claims that her bowling score is less than 168 points, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 1% significance level, to persuade them. She bowls 17 games. The mean score of the sample games is 155 points. Jamie knows from experience that the standard deviation for her bowling score is 19 points. α-0.01 (significance level) What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places? Provide your answer below: Test statistic
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