1. Do Chapter 3, Problem 4, p. 9o. To do this problem, type the data set into Mi
ID: 3242783 • Letter: 1
Question
1. Do Chapter 3, Problem 4, p. 9o. To do this problem, type the data set into Minitab (it's relatively small), run the regression command, and print out the Minitab output, making sure to include the coefficients table. Answer the parts of this problem by writing out your responses below the output. To do part (a), you can use the p-value approach, writing out your conclusion in words for part (b). To do part (c), you'll have to calculate the test statistic by hand and use the critical value approach.Explanation / Answer
Answer:
a).
Reject Ho if calculated P < 0.05.
test statistic t=6.34, P=0.001 which is < 0.05 level.
Ho is rejected.
b).
Yes, production and overhead costs are linearly related.
c).
t = (-1)/se
test statistic t =(0.911-1)/0.144 = -0.618
Critical value of t at 5 df =2.57
reject ho if t < -2.57 or t > 2.57
calculated t=-0.618 not falls in the rejection region.
Ho is not rejected.
d).
The regression coefficient is not significantly different from 1.
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