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Author Question: A public health researcher wants to use regression to predict the sun safety knowledge of pre-school ... (Read 120 times)

Frost2351

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on: Feb 14, 2020
A public health researcher wants to use regression to predict the sun safety knowledge of pre-school children. The researcher randomly sampled 35 preschoolers, assigned them to one of two groups, and then measured the following three variables:

SUNSCORE: y = Score on sun-safety comprehension test
READING: x1 = Reading comprehension score
GROUP: x2 = 1 if child received a Be Sun Safe demonstration, 0 if not

The following two models were hypothesized:

Model 1: E(y) = β0 + β1x1 + β2x12 + β3x2 + β4x1 x2 + β5x12x2
Model 2: E(y) = β0 + β1x1 + β3x2 + β4x1x2

A partial f-test was conducted to compare the two models and the resulting p-value was found to be 0.0023. Fill in the blank.  The results lead us to conclude that there is                                                (at ).
◦ sufficient evidence of interaction between sun-safety score and reading score.
◦ sufficient evidence of a statistically useful model for sun-safety score.
◦ sufficient evidence of a quadratic relationship between sun-safety score to reading score.
◦ insufficient evidence of quadratic relationship between sun-safety score to reading score.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by Frost2351 on Feb 14, 2020

mtmmmmmk

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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Frost2351

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Reply 2 on: Feb 14, 2020
Wow, this really help

nguyenhoanhat

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Reply 3 on: Yesterday
Gracias!

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