Answer:
Thats a great question look it up.
Step-by-step explanation:
Answer:
The interval from the sample of size 400 will be approximately <u>One -half as wide</u> as the interval from the sample of size 100
Step-by-step explanation:
From the question we are told the confidence level is 95% , hence the level of significance is
=>
Generally from the normal distribution table the critical value of
is
Generally the 95% confidence interval is dependent on the value of the margin of error at a constant sample mean or sample proportion
Generally the margin of error is mathematically represented as
Here assume that
is constant so

=> 
=> 
So let
and 
=> 
=> 
=> 
So From this we see that the confidence interval for a sample size of 400 will be half that with a sample size of 100
Answer:
(-1, -7) (0, -1) (1, 5) (5, 29)
Step-by-step explanation:
okay so the equation is y = 6x - 1
all you have to do is plug in all the x values to get the y
y = 6(-1) - 1
y = - 6 - 1
y = -7
y = 6(0) - 1
y = 0 - 1
y = -1
y = 6(1) - 1
y = 6 - 1
y = 5
y = 6(5) - 1
y = 30 - 1
y = 29
The circumference of the blue circle is about: 20 cm
The circumference of the orange circle is about: 10 cm