A study reported that students who play sports get better grades in school than students who do not play sports. Determine which
1 answer:
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Answer:
b) H0:μ=90, H1:μ≠90
Step-by-step explanation:
The corporation wants to know if the mean number of days is different from the 90 days claimed.
This means that at the null hypothesis, we test if the mean number is the claimed value of 90, and so:
The corporations wants to know if the mean number is different, and thus, at the alternate hypothesis, we test if the mean number is different from 90, that is:
This means that the correct answer is given by option b.
in short, we can change any percent formatted number to a decimal or fraction formatted one by simply dividing it by 100.