Question

Asked Dec 6, 2018

Hi, please see attached. Having trouble with the calculation of the significance test of this problem. Thanks.

Step 1

For the given question we can apply two t sample test with the assumption of equal variances.

To begin with we will find out the sample means and standard deviations for both the samples as follows using an excel or applying the basic formulas for Sample Mean and Sample Standard Deviation;

Step 2

Once calculated we have these calculated information for the two samples:

Step 3

We can now proceed with the pooled t-test.

Let ∪1 denote the mean of Brand I and let ∪2 denot...

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