Considere los siguientes datos para una variable dependiente y y dos.pdf

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Consider the following hypothesis test. H0: p 0.75 Ha: p < 0.75 A sample of 300 items was selected. Compute the p-value and state your conclusion for each of the following sample results. Use = 0.05 (a) p = 0.71 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) (b) p = 0.70 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) (c) p = 0.76 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.).

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Considere los siguientes datos para una variable dependiente y y dos variables independientes,
x1 y x2 .
x1_
x2_
La ecuacin de regresin estimada para estos datos es
= 17,54 + 2,00 x1 + 4,70 x2 .
Aqu, SST = 14.995,6, SSR = 13.855,0, sb1 = 0,2482 y sb2 = 0,9526.
(a) Pruebe una relacin significativa entre x1 , x2 y y . Use = 0.05.
Encuentre el valor de la estadstica de prueba. (Redondea tu respuesta a dos cifras decimales.)
______________.
Encuentre el valor p . (Redondea tu respuesta a tres decimales).
p -valor =_____________.
(b) Es 1 significativo? Use = 0.05.
Encuentre el valor de la estadstica de prueba. (Redondea tu respuesta a dos cifras decimales.)
_______________.
Encuentre el valor p . (Redondea tu respuesta a tres decimales).
p -valor =___________.
x1_
x2_y 30 12 93 47 10 108 25 17 112 51 diecisis 178 40 5 94 51 19 175 74 7 170 36 12 117 59 13
142 76 diecisis 209

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