The following are smoke readings taken on two different camshafts: Engine Camsha

Question

The following are smoke readings taken on two different camshafts: Engine Camshaft Suppose your supervisor brings you these data and says that one group claims there is essentially no difference in die camshafts and die other says there is a difference. What question would you ask about this experiment? What answers would make a further analysis useful? What further analysis? Assuming any answers to your questions dial you like, write a report on the experiment and the data. Somewhere in your report explain the difference between "statistically significant" and "technically important."

Explanation / Answer

Sol)

H0: There is no difference between two camshafts

H1: There is a difference between two camshafts
Levle:5%

Test statistics: We use te test for unequal variances

Conclusion:

P value=0.3867 > 0.05, we accept the null hypothesis.

Hence There is a difference between two airshafts

t-Test: Two-Sample Assuming Unequal Variances A B Mean 3.075 2.85 Variance 0.1225 0.11 Observations 4 4 Hypothesized Mean Difference 0 df 6 t Stat 0.933257 P(T<=t) one-tail 0.193352 t Critical one-tail 1.94318 P(T<=t) two-tail 0.386704 t Critical two-tail 2.446912

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