Using the z-distribution, the test statistic is:
c) -2.63.
<h3>What are the hypothesis tested?</h3>
At the null hypothesis we test if the means are equal, equivalent to a subtraction of 0, hence:
At the alternative hypothesis, we test 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:
.
.
For the distribution of differences, it is 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.
More can be learned about the z-distribution at brainly.com/question/13873630
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The cube root of -216 is -6.0
Answer:
3p*3p*3p*3p*3p*3p
Step-by-step explanation:
Multiply exponents
3p^6
expand
3p*3p*3p*3p*3p*3p = 3p^6
<span>Whats v=( 3.14)(11)2(6)?
I'd suggest using a calculator. You could enter these numbers in any order.
Please note that 11^2 denotes "the square of 11," which is 121.
Pleasure be certain to write that as 11^2, and not as (11)2.
</span><span>Whats v=( 3.14)(11)^2(6)? 3.14(121)(6) = 2279.64</span>
Answer:
Mean =590.40 to 2 decimal places and variance =0.320 to 3 decimal places.
Step-by-step explanation:
see the attached file for more explanations.
