3 simple statistics questions.
- What is a hypothesis test? What criteria do we use to make a decision about whether is a difference between groups/association between two variables when conducting a hypothesis test?
- What is the mean, median, standard
deviation, and IQR of the following variables: length, birthweight, motherage, headcircumference,
and gestation. In a couple sentences, briefly describe the descriptive
statistics you calculated. - Research Question: Is
there a correlation between gestation and babies birth weight? - a.
What type of statistical test do you
need to conduct to answer this research question? - b.
State your statistical hypothesis. - c.
Use excel to create a scatterplot to
show the association between gestation and birthweight. On the plot, include a
linear trendline and the regression formula. -
d.
Conduct the appropriate statistical
analysis in JAMOVI to determine if there is a correlation between gestation and
babies birth weight. Report your findings in a sentence. - e.
If a baby is born at 36 weeks
gestation, what would their predicted birthweight be based on the regression
formula? Provide the error (95%) for this birthweight estimated.
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