Mathematics, 04.12.2019 03:31 reyrey216
Show that an equivalent way to define the test for significance of regression in simple linear regression is to base the test on r2 as follows: to test h_{0}=\beta _{1}=0 versus h_{1}: \beta _{1}\neq 0 , calculate f_{0}=\frac{r^{2}(n-2)}{1-r^{2}} and to reject h_{0}: \beta _{1}=0 if the computed value f_{0}> f_{\alpha ,1,n-2} . suppose that a simple linear regression model has been fit to n = 26 observations and r2 = 0.7.a) test for significance of regression at \alpha= 0.05. h0: (reject, do not reject) select oneb)what is the smallest value of r2 that would lead to the conclusion of a significant regression if \alpha= 0.05.
Answers: 1
Mathematics, 21.06.2019 12:30
On the way home from visiting his family, vincent’s plane cruised at an altitude of 3.2 × 104 feet. he had heard that a man named felix baumgartner skydived from an altitude of 1.28 × 105 feet. vincent wants to know how much higher felix went on his skydiving trip. question 1 you have already seen how adding numbers works in either scientific notation or standard notation. but can you subtract numbers in scientific notation and get the same results as subtracting in standard notation? to find out, first solve vincent’s problem in standard notation. part a write the cruising altitude of vincent’s plane in standard notation.
Answers: 3
Mathematics, 21.06.2019 13:30
In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w
Answers: 1
Mathematics, 21.06.2019 14:50
Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .
Answers: 2
Show that an equivalent way to define the test for significance of regression in simple linear regre...
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