Answer:
( $74.623, $83.777)
The 90% confidence interval is = ( $74.623, $83.777)
Critical value at 90% confidence = 1.645
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
x+/-zr/√n
Given that;
Mean x = $79.20
Standard deviation r = $10.41
Number of samples n = 14
Confidence interval = 90%
Using the z table;
The critical value that should be used in constructing the confidence interval.
z(α=0.05) = 1.645
Critical value at 90% confidence z = 1.645
Substituting the values we have;
$79.20+/-1.645($10.42/√14)
$79.20+/-1.645($2.782189528308)
$79.20+/-$4.576701774067
$79.20+/-$4.577
( $74.623, $83.777)
The 90% confidence interval is = ( $74.623, $83.777)
Answer: 9
Step-by-step explanation:
27÷3=9 if you need one third cup per bowl then you need to divide the number of the bowls by three
Answer:
The answer to your question is slope = 0; y = -2
Step-by-step explanation:
Data
A (-2, -2)
B (2, -2)
Process
1.- Calculate the slope
m = (-2 - (-2)) / (2 - (-2))
m = ( -2 + 2) / (2 + 2)
m = 0/4
m = 0
2.- The equation of the line is
y - y1 = m(x- x1)
y - (-2) = 0(x - (-2))
y + 2 = 0
y = -2
If the answer your looking for is a graph then yeah
What is it ?.............
