<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.
Answer:
Actually that's incorrect
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
From the ASTC circle, we know that in the third quadrant where the variable is equal to 7π/6, the value obtained will be negative.
The cosine of the related angle π/6 gives a value of .
Since we know that it will be negative in the third quadrant, this means that it will be the negative of the cosine for the related angle.
Thus, the answer is A.
Subtract the first part in parentheses and then when u get the answer then subtract the next part
Here’s the answers
Brainliest? If I am right