Below are the numbers of goals scored by the lead scorers of the New Jersey Devils hockey team in the 2007€“2008 and 2008€“2009 seasons. On average, did the Devils play any differently in 2008€“ 2009 than they did in 2007€“2008?

a. Conduct the six steps of hypothesis testing using a two-tailed test and a p level of 0.05.

b. Report the test statistic in APA format.

c. Calculate the confidence interval for the paired samples t test you conducted in part (a). Compare the confidence interval t o the results of the hypothesis test.

d. Calculate the effect size for the mean difference between the 2007€“2008 and 2008€“2009 seasons.

Transcribed Image Text:

Player 2008–2009 2007-2008 Elias 20 31 Zajac 14 20 Pandolfo 12 Langenbrunner 13 29 Gionta 22 20 Parise 32 45