SOLUTION: Which of the following is _not_ a correct way to state a null hypothesis?
Select one:
a. H0: p = .5
b. H0: µd = 10
c. H0: pˆ1 − pˆ2 = 0 (Sample statistics do not go into h
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Probability-and-statistics
-> SOLUTION: Which of the following is _not_ a correct way to state a null hypothesis?
Select one:
a. H0: p = .5
b. H0: µd = 10
c. H0: pˆ1 − pˆ2 = 0 (Sample statistics do not go into h
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Question 1197266: Which of the following is _not_ a correct way to state a null hypothesis?
Select one:
a. H0: p = .5
b. H0: µd = 10
c. H0: pˆ1 − pˆ2 = 0 (Sample statistics do not go into hypotheses)
d. H0: µ1 − µ2 = 0
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If choice C says then choice C is the answer, as it's not a correct way to state the null hypothesis.
As you mentioned, sample statistics do NOT go into the hypothesis. We don't need to make an educated guess about sample statistics because we already can calculate them quite easily.
The symbol is read as "p hat" since the letter "p" has a little hat over top.
phat is the sample proportion
phat estimates the population proportion p
If choice C said
without the hat portions, then it would be a valid hypothesis since we're making an educated guess about the difference of population proportions p1 and p2
(