Anderson0300

10.04.2020 • 

Mathematics

Molly works for a meat producer, and she needs to determine whether containers of ground beef have the correct fat content. She obtains a random sample of 120 containers of ground beef and finds that 84 percent have the correct fat content. Molly then conducts a hypothesis test of H0:p=0.80H0:p=0.80 versus Ha:p≠0.80Ha:p≠0.80 and calculates a test statistic of 1.10 with a pp-value of 0.273. Which of the following best represents the meaning of the pp-value? If the population proportion is 0.84, the probability of observing a sample proportion of 0.80 is 0.273.AIf the population proportion is 0.84, the probability of observing a sample proportion of at least 0.04 less than 0.84 is 0.273.BIf the population proportion is 0.80, the probability of observing a sample proportion within 0.04 of 0.80 is 0.273.CIf the population proportion is 0.80, the probability of observing a sample proportion at least 0.04 greater than 0.80 is 0.273.DIf the population proportion is 0.80, the probability of observing a sample proportion of at least 0.84 or at most 0.76 is 0.273.

Ответ:

0Me0

21.02.2020

Mathematics

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option 1 is correct.

step-by-step explanation:

given sin 90°=1

we have to choose the correct statement.

as the sine of any acute angle is equal to cosine of its complement i.e these are complements.

sin(90-ф)=cosф and cos(90-ф)=sinф

sin 90°=cos(90-90)°=cos 0°

∴ cos 0°=sin 90°=1

as, sin(180-ф)=sin ф not cos ф

∴ sine and cosine are not supplements

hence, option 1 is correct.

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