Answer:
The test statistic for this test is 3.82.
Step-by-step explanation:
The null hypothesis is:
The alternate hypotesis is:
Our test statistic is:
In which X is the sample mean,
is the value tested at the null hypothesis,
is the standard deviation of the population and n is the size of the sample.
In this question:

So
The test statistic for this test is 3.82.
Answer:
d. hope I get it right I never got brainliest
Step-by-step explanation:
Answer:
Step-by-step explanation:
the answer was 0.2
Answer:
pretty sure its 25%
Step-by-step explanation:
1/4 is the same as 0.25 which is also the same as 25%