p value ? ??https://www.mathxl.c MAT-240-T5257 Applied Statistics 18EW5 Homework

Question

p value ?

??https://www.mathxl.c MAT-240-T5257 Applied Statistics 18EW5 Homework: 7-2 MyStatLab: M Score: 4 of 8 pts 2 14.1.9-T For the data set shown below, complete parts (a) through (d) below 20 30 40 50 60 y 98 97 89 85 68 ?1~b1=-0.72 (Round to two decimal places as needed) (b) Use technology to compute the standard error, the point estimate for d se= 4.8580 Round to four decimal places as needed ) (c) Assuming the residuals are normally distributed, use technology to det so, = 0.1536, (Round to four decimal places as needed (d) Assuming the residuals are normaly distributed test Ho P Determine the P-value for this hypothesis test P-value-?(Round tothree decimal places as needed ) 0 versus H nter your ansaer in the an

Explanation / Answer

Sol:

In excel go to

Data>Data analysis>Regression

we get

y=116.2-0.72x

slope=-0.72

standard error=4.858

p value= 0.018(3 decimals)

SUMMARY OUTPUT Regression Statistics Multiple R 0.937996 R Square 0.879837 Adjusted R Square 0.839783 Standard Error 4.857983 Observations 5 ANOVA df SS MS F Significance F Regression 1 518.4 518.4 21.9661 0.01836 Residual 3 70.8 23.6 Total 4 589.2 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 116.2 6.517668 17.82846 0.000385 95.45787 136.9421 X -0.72 0.153623 -4.6868 0.01836 -1.2089 -0.2311

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