The size of the sample should be obtained at 2401 in order to be 95% confident
Given that:
Margi of error, ![ME=0.02](https://tex.z-dn.net/?f=ME%3D0.02)
Population proportion, ![p=0.50](https://tex.z-dn.net/?f=p%3D0.50)
To Find: The size of the sample that should be obtained in order to be 95% confident
Let the size of the sample be n
Using formula,
![n=(p*(1-p))*(z(0.05/2)/ME)^{2} \\n=(0.5*(1-0.5))*(1.96/0.02)^{2} \\n=0.25*9604\\n=2401](https://tex.z-dn.net/?f=n%3D%28p%2A%281-p%29%29%2A%28z%280.05%2F2%29%2FME%29%5E%7B2%7D%20%5C%5Cn%3D%280.5%2A%281-0.5%29%29%2A%281.96%2F0.02%29%5E%7B2%7D%20%5C%5Cn%3D0.25%2A9604%5C%5Cn%3D2401)
Therefore, the size of the sample should be obtained at 2401 in order to be 95% confident
Learn more about Population proportion here brainly.com/question/15703406
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Answer:
Barry gets 300 first
Cheri gets 30 first
Barry gets 100 first
Representations:
Barry's profit = 5c + 20
Cheri's profit = 2c + 40
Step-by-step explanation:
well Barry's pprofit is
B = 5c + 20
and Cheri's profit is
C = 2c + 40
let's see who will get 300 first:
300 = 5c + 20
280 = 5c
56 = c
300 = 2c + 40
260 = 2c
130 = c
SO for 300 it is Barry who gets it first... same steps for others
Take the difference of the two options and then find the ratio, so..
50 - 20 = 30
40 - 25 = 15
ratio = 15/30 = 0.5 fifty cents per pound which means that the starting fee would be
25 - (20*0.5) = 15
Based on the various meals offered by the catering service, the ways that the order can be done is 6,930 ways..
<h3 /><h3>How many ways can the food be served?</h3>
This can be found as:
= (11! / (9!2!)) x (7! / (5!2!)) x (4! / (2!2!)
= 55 x 21 x 6
= 6,930 ways
In conclusion, the order can be made in 6,930 ways.
Find out more on permutations at brainly.com/question/1216161.
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