Minitab v14 - Hypothesis Testing: Continuous Variables (1 Sample)

The two sets of data are given the names Words and IQ. The Minitab Worksheet is available.

Z test

Use the "1-Sample Z..." command off of the "Stat, Basic Statistics" menu. That is:

That will take you to the following dialog box:

Type Words in the "Samples in columns:" box (or double click it from the left hand menu). Then type in the "Standard Deviation :", check the "Perform hypothesis test" box, and enter the mew ("Hypothesized mean:").

Choose the "OK" button. The output will look like this:

One-Sample Z: Words Test of mu = 7 vs mu not = 7 The assumed standard deviation = 2 Variable   N    Mean   StDev   SE Mean Words     20   8.350   0.988    0.447 Variable      95.0% CI       Z     P Words     ( 7.473, 9.227) 3.02 0.003

t test

Use the "1-Sample t..." command off of the "Stat, Basic Statistics" menu. That is:

That will take you to the following dialog box:

Type IQ in the "Samples in columns:" box (or double click them from the left hand menu). Then check the "Perform hypothesis test" box, and enter the mew ("Hypothesized mean:").

Choose the "OK" button. The output will look like this:

One-Sample T: IQ Test of mu = 102 vs mu not = 102 Variable     N    Mean  StDev  SE Mean IQ          20  110.50  13.12    2.93 Variable        95.0% CI        T     P IQ         ( 104.36, 116.64) 2.90 0.009