The answer to the question
Answer:
b
Step-by-step explanation:
It is on the ten thousands value
3 1/2 - (2/3)(3 1/2) =
<span>7/2 - (2/3)(7/2) = </span>
<span>7/2 - 7/3 = </span>
<span>21/6 - 14/6 = </span>
<span>7/6 or 1 1/6 yds</span>
Answer:
confidence interval = ( -0.38 , 0.08 )
Step-by-step explanation:
Given data :
n1 = 55 , n2 = 60 ,
Let P1 ( proportion of SUV sales at store A ) = 30 / 55 = 0.55
P2 ( sample proportion of SUV sales at store B ) = 42/60 = 0.70
The Z-value at 99% confidence Interval = 2.58
<u>Determine the 99% confidence interval for difference in proportion</u>
applying the formula below
( P1 - P2 ) ± Z ( 
Input values above into equation
confidence interval = ( -0.38 , 0.08 )