Answer:
He can randomly survey 50 sixth-graders in the school. Because if he asked 30 people in the band some people might be in a different grade, if he randomly 50 boys in the school then what if half didn't even play anything. If he did friend what if most friends don't even play a instrument.
Then which one would it be it would be more easier if he did 50 random sixth-graders because they might know friends or themselves and a person who plays an instrument.
Hope this helps
Answer:
![H0: mu = 8.9 fl oz.\\\\](https://tex.z-dn.net/?f=H0%3A%20mu%20%3D%208.9%20fl%20oz.%5C%5C%5C%5C)
![Ha: mu ≠8.9 fluid oz](https://tex.z-dn.net/?f=Ha%3A%20mu%20%E2%89%A08.9%20fluid%20oz)
Step-by-step explanation:
Given that A perfume company claims that the mean weight of ther new perfume is at least 8.9 fluid oz
For testing this claim, in Statistics we perform a certain measures called hypothesis testing.
For this first step is to create null and alternate hypothesis.
Normally null hypothesis would have some statistic = something
Here we want to test the mean weight of perfume
Hence null hypothesis would be
H0: mu = 8.9 fl oz.
Alternate hypothesis would be opposite of this claim
i.e.
Ha: mu ≠8.9 fluid oz
Hence answer is
![H0: mu = 8.9 fl oz.\\\\](https://tex.z-dn.net/?f=H0%3A%20mu%20%3D%208.9%20fl%20oz.%5C%5C%5C%5C)
![Ha: mu ≠8.9 fluid oz](https://tex.z-dn.net/?f=Ha%3A%20mu%20%E2%89%A08.9%20fluid%20oz)
It’s 45%
Explanation = 31900-22000/22000 • 100 = 45%
Answer: The volume of the tent is 293.33 ft.
Explanation: 11 x 10 x 8 = 880
The formula for the volume of a right rectangular pyramid is lwh/3.
880/3 = approximately 293.33
You should divide 280 into 3 which would equal 9