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sccovell5601
18.07.2020 •
Mathematics
The mayor of Lawrenceville indicated in a news interview that the percentage of students at GGC studying business is at least 30%. For your marketing project, you intend to test this claim. The correct setup of a hypothesis test for this situation is:
a) H0: p < .30 Ha: p ≥ .30
b) H0: p ≤ .30 Ha: p > .30
c) H0: p ≥ .30 Ha: p < .30
d) H0: p > .30 Ha: p ≤ .30
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Ответ:
c) H0: p ≥ .30 Ha: p < .30
Step-by-step explanation:
The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.
For the case above; let p represent the proportion of students at GGC studying business.
The Null hypothesis H0 is that the proportion of students at GGC studying business is at least 0.30 (30/100 = 0.30). It is greater than or equal to 0.30.
H0: p ≥ 0.30
The alternative hypothesis Ha is that the proportion of
students at GGC studying business is less than 0.30.
Ha: p < 0.30
Ответ:
i they did it to me too
Step-by-step explanation: