Excel 2019 for Business Statistics by Thomas J. Quirk

Author:Thomas J. Quirk
Language: eng
Format: epub
ISBN: 9783030392611
Publisher: Springer International Publishing

B8:  Null hypothesis:

B10: Research hypothesis:

Since both groups have a sample size greater than 30, you need to use Formula #1 for the t-test for the difference of the means of the two groups.

Let’s “break this formula down into pieces” to reduce the chance of making a mistake.

B13:  STDEV1 squared/n1 (note that you square the standard deviation of Group 1, and then divide the result by the sample size of Group 1)

B16:  STDEV2 squared/n2

B19:  D13 + D16

B22:  s.e.

B25:  critical t

B28:  t-test

B31:  Result:

B36:  Conclusion: (see Fig. 5.10)

Fig. 5.10Formula Labels for the Two-group t-test

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