[Solution Library] Can a pretest on mathematics skills predict success in a statistics course? The 102 students in an introductory statistics class took
Question: Can a pretest on mathematics skills predict success in a statistics course? The 102 students in an introductory statistics class took a pretest at the beginning of the semester. The least-square regression line for predicting the score y on the final exam from the pretest score x was \(\hat{y}=10.5+0.73x\). The standard error of b 1 was 0.42.
Test the null hypothesis that there is no linear relationship between the pretest score and the score on the final exam, using an appropriate t-test.
Deliverable: Word Document 
![[Solution Library] Regression X 1 2 3](/images/solutions/MC-solution-library-39592.jpg "[Solution Library] Regression X 1 2 3 4 5 Y 9 10 6 2 3 Mean of X")
[Solution Library] Regression X 1 2 3 4 5 Y 9 10 6 2 3 Mean of X
![[Step-by-Step] An experimenter asked 20 children to](/images/solutions/MC-solution-library-39593.jpg "[Step-by-Step] An experimenter asked 20 children to tell her about a")
[Step-by-Step] An experimenter asked 20 children to tell her about a
![[Solved] Use the following data: 69, 80,](/images/solutions/MC-solution-library-39594.jpg "[Solved] Use the following data: 69, 80, 77, 40, 59, 38 Compute")
[Solved] Use the following data: 69, 80, 77, 40, 59, 38 Compute
![[See Solution] Let z be a standard](/images/solutions/MC-solution-library-39595.jpg "[See Solution] Let z be a standard normal variable. Calculate")
[See Solution] Let z be a standard normal variable. Calculate
Solution: Let X be a normal variable (µ=0, σ =10). Find
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