Answer:
Complementary
Step-by-step explanation:
Thank you for posting your question here. I think the question is "
<span>What is the estimated mean for the population? Explain your answer and show your work."
Below is the solution. I hope it helps.
</span>µ= (1*248 +2*567 +3*1402 +4*728 +5*419 +6*456 +7*203)/(1 +2 +3 +4 +5 +6 +7)
<span>=14752/28≈ 526.9</span>
Multiply through by 7:-
3x - 14 = 105
3x = 119
x =119/3 = 39 2/3
Answer: c. Level of Significance
This is the alpha value
alpha is a greek letter with the symbol 
A type 1 error is when the researcher rejects the null, but the null was true (meaning the researcher shouldn't have rejected the null).