If I had multiple choices I could help more. I think the answer you are looking for is...
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log9 + logw</span>
Answer: No, the average age is not higher than originally believed.
Step-by-step explanation:
Since we have given that
Sample size = 20
Mean = 63.7 years
Standard deviation = 1.9 years
So, Hypothesis:
So, the value of test statistic would be
At α = 0.01 level of significance,
critical value z = 2.58
Since 2.58>0.471
so, We will accept the null hypothesis.
Hence, No, the average age is not higher than originally believed.
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Answer:\
10
Step-by-step explanation:
25 % correct ie, 40 * 25/100
=10
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