Answer:
Step-by-step explanation:
Given: Sample size: n = 41
Sample mean degrees
Population standard deviation degrees
Confidence level (c) = 80% =0.80
Significance level (a) = 1- c = 1-0.80 = 0.20
z-score for 80% confidence level : z = 1.2816 [from z-table]
Confidence level for population mean :-
Hence, 80% confidence interval for the temperatures in the freezer
Answer:
I believe it is 60 degrees
Step-by-step explanation:
90 degrees plus 30 is 120 then plus x will be 180 so 180 - 120 is 60
Equation- 8x(12+7-9)-(4+10)
Answer- 80x−14
Answer:
A
Step-by-step explanation:
9 - (-3) = 12/3= 4
3-0