Answer:
From narrowest to widest graph, the order is f(x) = –10x², f(x) = 2x², f(x) = 0.5x²
Step-by-step explanation:
I graphed the functions below
f(x) = –10x² is the black line, f(x) = 2x² is the red line, and f(x) = 0.5x² is the blue line.
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Answer:
Step-by-step explanation:
The confidence interval for population mean is given by :-
Given : Sample size : , which is a large sample , so we apply z-test .
Sample mean :
Standard deviation :
Significance level :
Critical value :
Now, a confidence interval at the 95% level of confidence will be :-