Answer: The sample size would be needed = 385
Step-by-step explanation:
Let p be the prior population proportion.
Margin of error = E
When not estimate of p is given , the formula to calculate the minimum sample size <em>n</em> = 
, where z* = critical value for given confidence interval.
Here z* for 95% confidence level is 1.96.
E=5%=0.05
Then 
Hence, the sample size would be needed = 385
I'm guessing you want to know the circumference of a circle with a 20 yard radius or circumference?
circumference = 2 * PI * radius = 2 * PI * 20 =
<span>
<span>
<span>
125.66</span></span></span>
circumference = PI * diameter = PI * 20 =
<span>
<span>
<span>
62.83</span></span></span>
Answer:
donkeey kongy
Step-by-step explanation:
Answer:
2.0
Step-by-step explanation:
x = age
y = average systolic blood pressure
x₁ = 40 years old, y₁ = 110 systolic blood pressure
x₂ = 50 years old, y₂ = 130 systolic blood pressure
∴ Slope of the regression line is 2.0
Answer: $84
Step-by-step explanation: 20% of 875=175; 175+875=1050; 8% of 1050=84, so your final answer would be $84.
