Answer:
C is correct
Step-by-step explanation:
y = cos(0.4x)
The answer is the third one :)
Your answer should be 1200 inches cubed
Answer:
The value of the test statistic is 
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 null hypothesis value,
is the standard deviation and n is the size of the sample.
In this problem:

So



The value of the test statistic is 
85 is a <span>26.865671641791% higher than 67
Hope this helps!!
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