Could you help me answer this for a friend
2 answers:
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Answer:
(-35,0)
Step-by-step explanation:
To find the x-intercept, you first have to find the slope. To do this you find change in y over change in x. So that would look like:
Which would result in:
That means that every time you rise 17, you go right 11.
If you then taks the highest point, (-57,-34) you can rise 17 twice to get to a y-coordinate of zero, so that means you have to go right 22, making the x-intercept
(-35,0)
Answer:
The degrees of freedom are given by:
And replaicing we got:
The 95% confidence interval would be between 26.9 and 31.1
Step-by-step explanation:
Information given
represent the sample mean
population mean
s represent the sample standard deviation
represent the margin of error
n represent the sample size
Solution
The confidence interval for the mean is given by the following formula:
(1)
And this formula is equivalent to:
And replaicing we got:
The 95% confidence interval would be between 26.9 and 31.1