It's the value of when
:
When , the derivative/slope is 2, so the answer is C.
A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive office (CEO) was at least eight
1 answer:
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<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.