Answer:
a) (0.124, 0.435)
b) I am 95% confident that the proportion difference is between 0.124 and 0.435
Step-by-step explanation:
Given that:
For male students: number of male students (
) = 69, number who liked the new method (x) = 38
For female students: number of female students (
) = 73, number who liked the new method (x) = 20
a) The probability that a male student like the new method (
) is given as:
The probability that a female student like the new method (
) is given as:
c = 95%, α = 1 -c = 0.05
the difference between the proportions of male and female students who like the new method better = 
± 
= 
± 
= (0.124, 0.435)
b) I am 95% confident that the proportion difference is between 0.124 and 0.435
A contraction would make the image smaller.
A negative number reflects the image and changes the size based on the number.
To make an image smaller the factor needs to be less than 1
so -0.5 and 0.5 would make the image smaller since 0.5 is less than 1.
Answer:
t = cost of a ticket
4t+55
Step-by-step explanation:
Cost 1
4 airline tickets
Let t = cost of a ticket
4*t
Cost 2
extra baggage fee
55
Add the costs together
4t+55
Answer:
$351,000
Step-by-step explanation:
Your welcome
1800x6.5x30
Answer:
The equation must include -8 as the slope
Step-by-step explanation:
Hi there!
Two key points to keep in mind:
- Linear equations are typically organized in slope-intercept form:
where m is the slope and b is the y-intercept (the value of y when x is 0). - Parallel lines always have equal slopes
Given the equation y=-8x+6, we can identify that -8 is in the place of m in y=mx+b, making it the slope.
For a line to be parallel to y=-8x+6, it would have to have a slope of -8 as well. This is the only quality a line needs to be parallel to this given line.
I hope this helps!
