Question
Please answer with proper calculations: value 18 15 20 21 1. The degrees of freedom for...
Please answer with proper calculations:
value
18
15
20
21
1. The degrees of freedom for the test are:
2. The critical value of t for the test is:
3. The calculated t statistic is
4. Based on the statistical test you can
>reject the null hypothesis.
>fail to reject the null hypothesis.
>can not determine.
>redo the test.
5. The null hypothesis would be:
>there is no difference between the two population means.
>there is a difference between the two poulation means.
>there is only a positive difference between the two populations means.
>there is only a negative difference between the two populations.
6. The alternative hypothesis would be:
>the new catalyst will outperform the older catalyst.
>the new catalyst will not outperform the older catalalyst.
>there is no difference between the two catalysts.
>cannot determine.
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