Problem. 2: (a) A biochemist studying the activity of the enzyme triose phosphat

Question

Problem. 2: (a) A biochemist studying the activity of the enzyme triose phosphate isomerase in a species of Drosophila wishes to if mean activities in HM/min know the y of this enzyme is the same and at pH 8. Assumin are significantly are normally with egual variances determine if the mean activities of TPI different at distributed ese o pH levels. ni th His pH 5 11.1 10.0 13.3 10.5 11.3 W. 24. ,Si M pH 8 12.0 15.3 15.1 15.0 13.2 3 S2 2. (b) Develop a 95% confidence interval for Hs H8. 2 vs. Hal M, +M2 -1)Su ni 1.85 II.24 8.83

Explanation / Answer

In your answer there is mistake in calculating sample mean for second data.Its 14.12 not 8.83

Using Minitab:

Two-sample T for pH 5 vs pH 8

N Mean StDev SE Mean
pH 5 5 11.24 1.26 0.56
pH 8 5 14.12 1.45 0.65

Difference = (pH 5) - (pH 8)
Estimate for difference: -2.880
95% CI for difference: (-4.865, -0.895)
T-Test of difference = 0 (vs ): T-Value = -3.35 P-Value = 0.010 DF = 8
Both use Pooled StDev = 1.3611

P-value < 0.01 we reject null hypothesis so we conclude that mean activities of of TPI are significantly different.

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