Question

Do left handed starting pitchers pitch more innings per game on average than right handed starting pitchers? A researcher looked at eleven randomly selected left handed starting pitchers' games and nine randomly selected right handed pitchers' games. The table below shows the results.

Left:  4 5 7 7 6 7 6 7 7 6

Right:  5 5 5 5 7 6 6 6

Assume that both populations follow a normal distribution. What can be concluded at the the αα = 0.10 level of significance level of significance?

For this study, we should use Select an answer t-test for a population mean t-test for the difference between two dependent population means t-test for the difference between two independent population means z-test for a population proportion z-test for the difference between two population proportions

1. The null and alternative hypotheses would be:   
2.   

H0:H0:  Select an answer p1 μ1  ? < = > ≠  Select an answer μ2 p2  (please enter a decimal)   

H1:H1:  Select an answer p1 μ1  ? > ≠ = <  Select an answer p2 μ2  (Please enter a decimal)

2. The test statistic ? t z  =  (please show your answer to 3 decimal places.)
3. The p-value =  (Please show your answer to 4 decimal places.)
4. The p-value is ? ≤ >  αα
5. Based on this, we should Select an answer fail to reject accept reject  the null hypothesis.

Answer 1