Using the z-distribution, the p-value would be given as follows:
b) 0.0086.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis we test if the means are equal, hence:

At the alternative hypothesis, it is tested if they are different, hence:

<h3>What are the mean and the standard error for the distribution of differences?</h3>
For each sample, they are given as follows:
Hence, for the distribution of differences, they are given by:
.
<h3>What is the test statistic?</h3>
The test statistic is given by:

In which
is the value tested at the null hypothesis.
Hence:


z = -2.63.
Using a z-distribution calculator, for a two-tailed test, with z = -2.63, the p-value is of 0.0086.
Hence option B is correct.
More can be learned about the z-distribution at brainly.com/question/13873630
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Answer:
a=28
Step-by-step explanation:
use inverse operations
Answer:
10+7b= 45
76+10=86
Step-by-step explanation:
BRAINLIEST help pls,,,,,,,,,,,,,
icang [17]
Hey there!
1/3 = ?/12
If we observe denominator , it is multiplied by 4
So we must multiple numerator by 4 too
=> 1/3 x 4/4 = 4/12
? = 12.
Answer:
6 females were not wearing boot but if your looking for how many people total aren't its 11 people that aren't