Y = 10.5x y = 7.5x + 30
1 answer:
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<h2>Answer with explanation:</h2>
The confidence interval for population mean is given by :-
, where is the sample proportion, n is the sample size ,
is the critical z-value.
The values needed to calculate a confidence interval at the 99% confidence level are :
Given : Significance level :
Sample size : n=450
Critical value :
Sample proportion:
Now, the 99% confidence level will be :
Hence, the 99% confidence interval is
Answer:
1) y = 3x+5
2) y =
3) y = -x + 0
4) y =
5) y =
Step-by-step explanation:
y = mx+b
In slope-intercept form, these are important to know:
- y and x should stay as variables
- m = slope of the line
- b = y intercept
Using the facts above⬆, we can solve these problems
Remember: Substitute m and b using the given information
1) y = 3x+5
2) y =
3) y = -x + 0
4) y =
5) y =
Hope this helps :)
Have a great day!