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Luden [163]
3 years ago
8

Tristan is an administrator for a private nonprofit college and read a surprising statistic that 74% of graduates from private n

onprofit colleges in the region had at least one outstanding student loan at the time of graduation. He believes that percentage is high and claims that the proportion of graduates at his college is less than the regional rate. Tristan randomly selects 135 graduates from his college and finds that 92 had at least one outstanding student loan at the time of graduation. What are the null and alternative hypotheses for this hypothesis test?
Mathematics
1 answer:
STatiana [176]3 years ago
6 0

Answer: H_0: p=0.74\\\\ H_a:p

Step-by-step explanation:

Let p be the population proportion for the graduates from private nonprofit colleges in the region had at least one outstanding student loan at the time of graduation.

Given : Tristan is an administrator for a private nonprofit college and read a surprising statistic that 74% of graduates from private nonprofit colleges in the region had at least one outstanding student loan at the time of graduation.

i.e. p=0.74

He believes that percentage is high and claims that the proportion of graduates at his college is less than the regional rate.

i.e.  p

Since, the null hypothesis is a statement which always takes equal sign or generally shows " no difference " where as alternative hypothesis takes unequal signs.

Then, the null and alternative hypotheses for this hypothesis test :-

H_0: p=0.74\\\\ H_a:p

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Plzzzzzzzz! A suitcase lock has a code 4 symbols long. The symbols on the lock are a star, a square, a circle, a triangle, a lin
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Answer:

                \dfrac{1}{30}

Step-by-step explanation:

6 symbols and 4-symbol code so number of combinations wich doesn't contain the same symbol twice would be:

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If code starts with a star followed by triangle that means only one posibility for first two symbols and code doesn't containing the same symbol twice means that left 4 symbols for next two.

So number of combinations of code starting with a star followed by triangle and doesn't containing the same symbol twice will be:

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The probability that a randomly chosen code starts with a star followed by triangle and doesn't contain the same symbol twice:

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The sum of interior angles of given polygon is 900°

Step-by-step explanation:

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