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chubhunter [2.5K]
2 years ago
15

Please help ASAP I’m gonna fail

Mathematics
1 answer:
belka [17]2 years ago
4 0
D because it’s the right one
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You must mix 2.67 gals. of pure alcohol to obtain the desired mixture.

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3 years ago
Four people enter their names into a drawing. The winner receives one of two different prizes that are randomly selected. The tr
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2 years ago
Can someone help me figure out what 40% of 65 is?​
Akimi4 [234]

Answer:

26

Step-by-step explanation:

Convert 40% to a decimal

40% = 0.4

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0.4 • 65 = 26

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7 0
3 years ago
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Based on the sample of 500 people, 42% owned cats. Calculate the test statistic. Round to two decimal places.
Tanzania [10]

Answer:

z= 3.63

z for  significance level = 0.05 is ± 1.645

Step-by-step explanation:

Here p = 42% = 0.42

n= 500

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H0: p= 0.42     against Ha : p> 0.42 One tailed test

From this we can find q which is equal to 1-p= 1-0.42 = 0.58

Taking p`= 0.5

Now using the z  test

z= p`- p/ √p(1-p)/n

Putting the values

z= 0.5- 0.42/ √0.42*0.58/500

z= 0.5- 0.42/ 0.0220

z= 3.63

For one tailed test the value of z for  significance level = 0.05 is ± 1.645

Since the calculated value does not fall in the critical region we reject our null hypothesis  and accept the alternative hypothesis that more than 42%  people owned cats.

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3 years ago
Chris has a bag of four apples. Three of the apples are red and one of them is green. He also has two
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Answer: 3/8

Step-by-step explanation:

It’s the answer :>

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3 years ago
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