Tested a standard bar of soap

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Reference no: EM131008262

A soap manufacturer tested a standard bar of soap to see how long it would last. A test subject showered with the soap each day for 15 days and recorded the Weight

Day - 5.57476 0.1068 - 52.2 ... 0.0001

Find the following facts in this output, or determine them from what you know.

a) The standard deviation of the residuals

b) The slope of the regression line

c) The standard error of b1

d) The P-value appropriate for testing H0: b1 = 0 versus HA: b1 Z 0

e) Is the null hypothesis rejected at a = 0.05?

Reference no: EM131008262

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