9) (CH. 9-2) Is there a difference between the average NBA Championship Final game winning scores of...

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Basic Math

9) (CH. 9-2) Isthere a difference between the average NBA Championship Final gamewinning scores of the 1970’s versus the average of the winningscores of the 2000’s? Use a 0.01 significance level to test theclaim that there is a difference.
1970’s
2000’s
97
99
105
131
109
83
87
95
96
81
102
100
102
88
114
113
118
108
113
116
Use the data from problem #9 to construct a 99% confidenceinterval estimate for the mean of the differences. Does thisinterval contain zero? Do the results of this problem support theresults of problem #9?
What is the Confidence Interval Estimate:
Does the interval indicate a difference or not? Explainyour answer.
Do the results of the hypothesis test (from problem #9)and the confidence interval estimate support eachother?

Answer & Explanation Solved by verified expert

4.2 Ratings (566 Votes)

From the data1970s2000sn1010Sum10431014Average104301014SSSum of squares812122504Variance SS1902325004Std DevSqrtVariance951581Since s1s2 06 it lies between 05 and2 we used the pooled varianceThe Pooled Variance is given bySp 1701031 001TheHypothesisH0 Ha This is a Two tailed See Answer

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	1970’s	2000’s

	97	99
	105	131
	109	83
	87	95
	96	81
	102	100
	102	88
	114	113
	118	108
	113	116