A study was carried out to improve student performance in a low-level university mathematics course. Half of the sections were taught traditionally, whereas the other half were taught in a way that hopefully would keep the students involved.

The final test scores are shown in Table 1 for the 79 students taught traditionally and for the 85 students taught with more involvement.

Group:

Traditional Sample Size- 79 Sample Mean- 23.87 Population Standard Deviation- 11.60

Experimental Sample Size- 85 Sample Mean- 23.74 Population Standard Deviation- 8.85

Does this information suggest that the true mean for the experimental is different from that for the traditional condition? Assume that the population standard deviations are known. Conduct a two-tailed test with = 0.05. Hint: Use the normal distribution.

Step 1. State the null and alternative hypotheses.

Step 2. Select the distribution to use.

Step 3. Determine the rejection and non-rejection regions.

Step 4. Calculate the value of the test statistic.

Step 5. Make a decision.

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Step 1 Null Hypothesis H0 1 2 3D Alternative H... View the full answer