The correct statement for a significance test to increase mean life expectancy from (a) it is based on the very large sample and 5% significance level is used, (b) it is based on the very large sample and 1% significance level is used, (c) it is based on the very small sample and 5% significance level is used, (d) it is based on the very small sample and 1% significance level is used.
Answer to Problem 29E
The correct option is (a).
Explanation of Solution
Larger the
Thus, it is based on the largest sample with highest significant level
Hence, the correct option is (a).
Chapter 9 Solutions
The Practice of Statistics for AP - 4th Edition
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