A) is 5 months
b) is option 1 difference of 40
Answer:
6 + 7 = 13
13 - 7 = 6
13 - 6 = 7
7 + 6 = 13
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.
*Quack* 7 hope this helps fellow duck!
No they don't. 2/3=.67, 3/4=.75. 8-.75=7.25. 7.25/.67=10.82.... 87/8=10.88 :) hope this helps
