Are good grades in high school associated with family togetherness? a simple random sample
of...
Health, 29.12.2019 04:31 tabocampos1414
Are good grades in high school associated with family togetherness? a simple random sample
of 142 high-school students was asked how many meals per week (x) their families ate together.
their responses produced a mean of ¿x = 3.78 meals per week, with a standard deviation of2
sx = 2.2. researcherss then matched these responses against the students' grade point averages (gpas). the scatterplot appeared to be
reasonably linear, so they created a regression line. no apparent pattern emerged in the residuals plot. the equation of the line was gpa=2.73+.11(meals).
what was the mean gpa ?
Answers: 1
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