Answer:
Check the explanation
Step-by-step explanation:
Below are the null and alternative Hypothesis,
Null Hypothesis, H0: μ = 300000
Alternative Hypothesis, Ha: μ < 300000
Test statistic,
z = (xbar - mu)/(sigma/sqrt(n))
z = (288000 - 300000)/(80000/sqrt(25))
z = -0.75
P-value Approach
P-value = 0.2266
As P-value >= 0.05, fail to reject null hypothesis.
Answer: k=9
reasoning: just plug in 1 for x and 1 for y
Answer:
I believe it is three
Step-by-step explanation:
Good luck!
It's A. 4 (m^2+9) (m+3) (m-3)
