Answer:
6.57 x 10 to the power of 5
Step-by-step explanation:
ANSWER:
m = -3/4
b = -3
STEP-BY-STEP EXPLANATION:
We have that the equation in its slope-intercept form is the following:
We calculate the slope as follows:
To calculate the slope we use the intercepts that are (-4, 0) and (0, -3), we replace:
Now, the value of b would be -3, since the y-intercept is (0,-3), therefore, the equation would be:
A 99% confidence interval for the population mean of high school students that take the bus to school every day is b) ci=(44.34%, 54.43%)
We need to find the 99% confidence interval for the population mean of high school students that take the bus to school everyday
A confidence interval is a range of estimates for an unknown parameter. The confidence interval is calculated at the specified confidence level; the most common is the 95% confidence level, but sometimes other levels are used, such as 90% or 99%.
The confidence interval of proportions is given by:
π ± z √(π (1-π) /n)
π is the sample proportion.
z is the critical value.
n is the sample size.
For 99% confidence interval the value of z is 2.58
π = 321/650
The confidence interval is given by
=321/650 ± 2.58 √( (321/650) × [ 1 - (321/650) ] ÷ 650)
= (0.493846 ± 0.050594)
=(0.4434 , 0.5443)
=(44.34 % , 54.43 %)
Hence a 99% confidence interval for the population mean of high school students that take the bus to school every day is ci=(44.34%, 54.43%)
<u>Learn more about confidence interval:</u>
brainly.com/question/28052710
# SPJ4
Answer:
False. They will be parallel to each other
