a.
To find: The appropriate t statistic for the provided test.
a.
Answer to Problem 48E
Two sample t statistic.
Explanation of Solution
Given:
The test statistic (t) is -1.05.
Two groups of birds have been compared in the first group.
There are 7 pairs and 6 pairs of birds in the first and second group respectively
Here, in this case the
b.
To explain: The way in which the value of the test statistic is leading the quoted conclusion.
b.
Answer to Problem 48E
The confidence interval is (413.62, 634.64).
Explanation of Solution
Calculation:
The null and alternative hypotheses are:
The degree of freedom can be calculated as:
The p-value is:
Here, p-value is greater than the significance level. The null hypothesis is not rejected. Thus, there is insufficient evidence to support the quoted conclusion.
Chapter 10 Solutions
The Practice of Statistics for AP - 4th Edition
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