Answer:
The 95% confidence interval for the population mean weight of newborn elephants is between 242.12 pounds and 245.88 pounds.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so 
Now, find M as such
In which 
is the standard deviation of the population and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 244 - 1.88 = 242.12 pounds.
The upper end of the interval is the sample mean added to M. So it is 244 + 1.88 = 245.88 pounds
The 95% confidence interval for the population mean weight of newborn elephants is between 242.12 pounds and 245.88 pounds.
Check the picture below
make sure your calculator is in Degree mode, if you need "x" in degrees
Answer:
<h3>The purpose of a single linear regression is <u>
To predict a dependent variable from data from multiple independent variables</u></h3>
Step-by-step explanation:
The purpose of a simple linear regression is same as a correlation in that the purpose is to measure a linear relationship between two variables to the end.
In that particular case , its purpose is to "predict" the data from a dependent variable to the data from atleast one independent variable.
<h3>The purpose of a single linear regression is <u>
To predict a dependent variable from data from multiple independent variables</u></h3>
Is this math or something I don’t really understand this question right now?
Line r represents the equation y= 3x-2.
Even though the y-intercept is not visible, the slope is 3. So that means the orange line is the equation
