Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 73
The proportion that in favor of raising the tuition is 
The standard deviation is 
The required standard deviation 
Generally the requires standard deviation is mathematically represented as
=> 
=> ![\frac{n_1}{n_2} =[\frac{s_2}{s_1} ]^2](https://tex.z-dn.net/?f=%5Cfrac%7Bn_1%7D%7Bn_2%7D%20%3D%5B%5Cfrac%7Bs_2%7D%7Bs_1%7D%20%5D%5E2)
=> ![\frac{73}{n_2} =[\frac{0.047}{0.098} ]^2](https://tex.z-dn.net/?f=%5Cfrac%7B73%7D%7Bn_2%7D%20%3D%5B%5Cfrac%7B0.047%7D%7B0.098%7D%20%5D%5E2)
=> 
=> 
=>
The mean will be calculates as follows; from the formula of z-score we shall have:
z=(x-μ)/σ
the z-score associated with 0.5% is 0
thus
0=
(8-μ)/0.4=0
solving for x we get:
μ=9
Answer: μ=9
Answer:
Step-by-step explanation:
well if alan and debra are in separate class rooms. They would have to add up the number of movie students in each class room alan has X movie students and debra has Y movie students
Mean number = Average number = sum of the values / number of values
Mean number = (X + Y) / 2
