Questions: (a) Transform the statistics test score to a z-score.
z=2.17
(Type an integer or decimal rounded to the nearest hundredth as needed.)
Transform the biology test score to a z-score.
z=0.77
(Type an integer or decimal rounded to the nearest hundredth as needed.)
(b) Determine on which test the student had a better score. Choose the correct answer below.
On the biology test the student had a better score.
On the statistics test the student had a better score.
The scores on both tests are the same.
Transcript text: (a) Transform the statistics test score to a z-score.
\[
z=2.17
\]
(Type an integer or decimal rounded to the nearest hundredth as needed.)
Transform the biology test score to a z-score.
\[
z=0.77
\]
(Type an integer or decimal rounded to the nearest hundredth as needed.)
(b) Determine on which test the student had a better score. Choose the correct answer below.
On the biology test the student had a better score.
On the statistics test the student had a better score.
The scores on both tests are the same.
Solution
Solution Steps
Step 1: Transforming the Statistics Test Score
The z-score for the statistics test is given as:
\[
z = 2.17
\]
Step 2: Transforming the Biology Test Score
The z-score for the biology test is given as:
\[
z = 0.77
\]
Step 3: Comparing the Test Scores
To determine which test the student performed better on, we compare the z-scores:
For the statistics test: \( z = 2.17 \)
For the biology test: \( z = 0.77 \)
Since \( 2.17 > 0.77 \), the student had a better score on the statistics test.
Final Answer
The answer is: \\(\boxed{\text{On the statistics test the student had a better score.}}\\)