It's the value of
when
:

When
, the derivative/slope is 2, so the answer is C.
Answer:
its false
Step-by-step explanation:
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Answer:
It would be B
Step-by-step explanation:
<h2>
Answer with explanation:</h2>
Let
be the population mean.
Null hypothesis : 
Alternative hypothesis : 
Since the alternative hypothesis is left tailed, so the test is a left-tailed test.
Sample size : n=5 <30 , so we use t-test.
Test statistic: 

Critical t-value for t=
Since, the absolute value of t (1.79) is less than the critical t-value , so we fail to reject the null hypothesis.
Hence, we have sufficient evidence to support the company's claim.
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