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3 years ago

The linear parent function is f(x)=

Mathematics

2 answers:

Dvinal [7]3 years ago

5 0

Answer:

let's see...

Step-by-step explanation:

The linear parent function is :

$f(x) = a \: x + b$

Where <u>a</u> is the slope of the line and b is the width of the origin.

stira [4]3 years ago

4 0

Answer:

f(x) = x

Step-by-step explanation:

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zmey [24]

Answer:

$3.20-1.304\frac{0.8}{\sqrt{40}}=3.035$

$3.20+1.304\frac{0.8}{\sqrt{40}}=3.365$

And the confidence interval would be between (3.035;3.365)

Step-by-step explanation:

Information given

$\bar X=3.20$ represent the sample mean

$\mu$ population mean (variable of interest)

s=0.8 represent the sample standard deviation

n=40 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom are given by:

$df=n-1=40-1=39$

The Confidence level is 0.80 or 80%, the significance would be $\alpha=0.2$ and $\alpha/2 =0.1$ , and the critical value would be $t_{\alpha/2}=1.304$

Now we have everything in order to replace into formula (1):

$3.20-1.304\frac{0.8}{\sqrt{40}}=3.035$

$3.20+1.304\frac{0.8}{\sqrt{40}}=3.365$

And the confidence interval would be between (3.035;3.365)

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