Answer: the required sample size = 155
Step-by-step explanation:
If the standard deviation of the prior study is known, then the formula to compute required sample size:
, where E = Margin of error, z* = Critical value, = populion standard deviation.
Given: E = 3.7 ,
Critical value for 90% confidence = 1.645
Required sample size:
Hence, the required sample size = 155
Answer:
e = 58°
Step-by-step explanation:
Fact: total angle is always 360°
e+ 136° + 97° + 74° = 360°
e = 360° - 136° - 97° - 74°
=58°
Answer:
a. 1/12 (hope it help)
Step-by-step explanation:
5sec/60sec=1/12
Answer is E. u could plug in the values for x and see if u get the same y in the equation