Answer:
b
Step-by-step explanation:
60mph-10mph=T would be the answer... I believe.
<u>If you are talking about Great White Sharks, then here is what you need:</u>
Length: Female: 4.5 – 6.4 m (Adult), Male: 3.4 – 4.1 m (Adult)
Mass: 520 – 1,100 kg (Adult)
<h2><em><u>
(The measurements may vary)</u></em></h2>
Answer:
645;lllll
Step-by-step explanation:
Using the t-distribution, as we have the standard deviation for the sample, we have that the test statistic is given by:

<h3>What are the hypothesis tested?</h3>
At the null hypothesis, it is tested if there is no difference, that is:

At the alternative hypothesis, it is tested if there is a difference, that is:

<h3>What is the test statistic?</h3>
The test statistic is given by:

The parameters are:
is the sample mean.
is the value tested at the null hypothesis.
- s is the standard deviation of the sample.
In this problem,
is tested at the null hypothesis, and the sample is: 20, -40, -40, 0, 20, - 60, -40, hence:
.
Hence, the test statistic is:



More can be learned about the t-distribution at brainly.com/question/16313918