3.17 x 10^5 = <span>317000</span>
Answer:
a)2975
b)3450
Step-by-step explanation:
Answer:
Step-by-step explanation:
Given that a statistics student would like to estimate the average age of students at her college.
Population std dev =2.5years
For 99% , Z critical = ±2.59
Margin of error = 
Simplify to get

n = 167.70
n=168
She must survey 168 people
Answer:
Option C)
is the slope
Step-by-step explanation:
We are given the following in the question:
The estimated regression equation is:

where
is the dependent variable and need to be predicted and x is the independent variable and is the predictor.
If we compare this regression equation to slope intercept form of straight line,

Here, m is the slope if the line and c is the y-intercept hat is the value of y when x is zero.
Comparing the regression equation to the slope intercept form, we get,
Slope, m =

Intercept, c =

Thus, the correct answer is:
Option C)
is the slope
Answer:
the answer is 5.50
Step-by-step explanation:
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