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Karo-lina-s [1.5K]
2 years ago
8

15 points! Please answer rigghtt

Mathematics
2 answers:
Scorpion4ik [409]2 years ago
7 0

Answer:

20 hours

Step-by-step explanation:

You do 200 - 30 which gives you 170.

170 divided by 8.50 is 20.

The answer is 20.

If this helped please consider marking it brainliest :3

Varvara68 [4.7K]2 years ago
4 0
It’s 20 Bc that guy said it was 20
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Answer:

Option A

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Step-by-step explanation:

Normally, in hypothesis testing, the level of statistical significance is often expressed as the so-called p-value. We use p-values to make conclusions in significance testing. More specifically, we compare the p-value to a significance level "α" to make conclusions about our hypotheses.

If the p-value is lower than the significance level we chose, then we reject the null hypotheses H0 in favor of the alternative hypothesis Ha. However, if the p-value is greater than or equal to the significance level, then we fail to reject the null hypothesis H0

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Now, applying this to our question;

The p-value is 0.023 while the significance level is 0.05.

Thus,p-value is less than the significance level of 0.05 chosen and so we reject the null hypothesis H0 and can conclude that the proportion of the subjects who have the necessary qualities is less than 0.2.

The only option that is correct is option A.

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3 years ago
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But the graph paper is not here...

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