3 years ago

At a camp with 300 campers and 15 counselors, what is the camper-counselor ratio?

1 answer:

4 0

Answer:

300:15 = 100:5 = 20:1

Answer = 20:1

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Len [333]

Answer: 3

Step-by-step explanation:

Given : Standard deviation : $\sigma=4.1\text{ seats}$

Margin of error : $E=\pm5\text{ seats}$

Significance level : $\alpha: 1-0.95=0.05$

By using the standard normal table of z ,

Critical value : $z_{\alpha/2}=1.96$

The formula we use to find the minimum sample size required :-

$n=(\dfrac{z_{\alpha/2}\ \sigma}{E})^2$

i.e. $n=(\dfrac{(1.96)(4.1)}{5})^2=2.58309184\approx3$

Hence, the number of lights should we select if we wish to estimate μ to within 5 seats and be 95 percent confident =3

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3 years ago

At a camp with 300 campers and 15 counselors, what is the camper-counselor ratio?​