Answer: r=1/2
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
b is correct
Answer:
x=3
Step-by-step explanation:
Because the line lies on x =3
Answer:
4
Step-by-step explanation:
Answer:
C. becomes narrower
Step-by-step explanation:
If the confidence level is reduced from 95% to 90%, then, the confidence interval for u becomes narrower, i.e., we are less sure that the true value of u is contained inside the new interval. With a 95% confidence interval there is a probability of 0.95 that the parameter u is inside the interval and with a 90% confidence interval there is a probability of 0.90 that the parameter u is inside the interval.
