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Natalija [7]
2 years ago
9

Help a girl out!! Can you explain how you got the answers as well?

Mathematics
1 answer:
balandron [24]2 years ago
5 0

Answer:

I think its H, 2.5%

Step-by-step explanation:

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Why is graphing not always the best option for solving systems?
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3, If there are many solutions that will be really hard to plot sometimes. 

This is just from the top of my head. 
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WHO RUNS THE FASTEST? HELP
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Jessica runs the fastest

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If you divide all of the lengths they ran by the time it took them to run in seconds, you find how much feet they run each second and Jessica ran the most feet in the least amount of time which means she runs the fastest.

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Kayla wanted to buy a sweatshirt. The original price was $45. When she went to the store the sale price was $37. What is the per
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7 0
3 years ago
Suppose 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.05 significance
lana66690 [7]

Answer:

Null Hypothesis, H_0 : p = 0.20  

Alternate Hypothesis, H_a : p > 0.20  

Step-by-step explanation:

We are given that 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea.

We have to use a 0.05 significance level to test the claim that more than 20​% of users develop nausea.

<em>Let p = population proportion of users who develop nausea</em>

So, <u>Null Hypothesis,</u> H_0 : p = 0.20  

<u>Alternate Hypothesis</u>, H_a : p > 0.20  

Here, <u><em>null hypothesis</em></u> states that 20​% of users develop nausea.

And <u><em>alternate hypothesis</em></u> states that more than 20​% of users develop nausea.

The test statistics that would be used here is <u>One-sample z proportion</u> test statistics.

                     T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }   ~ N(0,1)

where,  \hat p = proportion of users who develop nausea in a sample of 241 subjects =  \frac{54}{241}  

             n = sample of subjects = 241

So, the above hypothesis would be appropriate to conduct the test.

6 0
3 years ago
A baseball player makes it to home plate 35% of the time. How many times can he expect to make it home in 850 at bats
choli [55]
850x35% =297.5
=298(cor.to 3 sig.fig.)
5 0
3 years ago
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