Answer:gchvbunonion
Step-by-step explanation:
M5 minus M6 will get M1
So 62 - 38 = 24
24 x 3 = 72
So M3 is 72
Answer:
B,C,E
Step-by-step explanation:
Done this before. A is the first and so on and so forth
Answer:
a) sample size is 40
Step-by-step explanation:
(a)
minutes
Margin of error, E is 75 seconds E=75/60= 1.25 minutes.
The level of significance
for 95% level of significance
For 95% confidence interval
from standard deviation table
Sample size required, n

Rounding off, n=40
Sample size =40
Keywords:
95% confidence, sample size, Wall Street Journal