The parameter of interest in this scenario is the proportion of all 1,000 students within the school who have "strict" parents or guardians.
<h3>How to calculate a test statistic?</h3>
In Mathematics, the test statistics of a given sample is calculated by using this formula:

<u>Where:</u>
- is the standard deviation.
In conclusion, a possible test statistic which can be used to estimate this parameter is the proportion of all students who have "strict" parents or guardians, based on the collected sample.
Read more on test statistic here: brainly.com/question/4621112
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The answer is D since is the only one that has the correct y intercept
Answer:
18
Step-by-step explanation:
because the number of people that can swim will be about quarter out of hundred
S would be equal to 10. We’d multiply 45 by 2 to get the 90 then divide by 9 to isolate it