Cabiolab

2020-11-01

To draw: The conclusion and internet the decision.

Clelioo

Skilled2020-11-02Added 88 answers

Given:

A professor is concerned that the two sections of college algebra that he teaches are not performing at the same level. To test his claim, he looks at the mean exam score for a random sample of students from each of his classes. In Class1, the mean exam for 12 students is 78.7 with a standard deviation of 6.5. In Class 2, the mean exam core for 15 students is 81.1 with a standard deviation of 7.4. Assume that the population variances are equal

Procedure:

Rejection Regions for hypothesis tests for two population means. Reject the null hypothesis,

The alternative hypothesis contains “

It is given that

The calculated value of the test statistic -0.88295 is less than the critical value, it does fall in the rejection region. The null hypothesis is rejected because

Thus, it is concluded that there is sufficient evidence at the 0.05 level of significance to support the claim that two sections of college algebra that he teaches are performing at the same level.