A. How well do people remember their past diet? Data are available for 91 people who...

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A. How well do people remember their past diet? Data areavailable for 91 people who were asked about their diet when theywere 18 years old. Researchers asked them at about age 55 todescribe their eating habits at age 18. For each subject, theresearchers calculated the correlation between actual intakes ofmany foods at age 18 and the intakes the subjects now remember. Themedian of the 91 correlations was r = 0.217. Theresearchers stated, "We conclude that memory of food intake in thedistant past is fair to poor".

Choose the best reason why r = 0.217 points to thisconclusion.
Because a correlation of 0.217 indicates a negativeassociation.
Because a correlation of 0.217 indicates a positiveassociation.
Because a correlation of 0.217 indicates a strongassociation.
Because a correlation of 0.217 indicates a weak association.
Because a correlation of 0.217 indicates no association.
B. Although research questions usually concern a _, theactual research is typically conducted with a .
sample, statistic
population, parameter
sample, population
population, sample

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A CORRELATION COEFFICIENT The correlation coefficient denoted by r is a measure of the strength of the straightline or linear relationship between two variables The correlation coefficient takes on values ranging between 1 and 1 The following holds true 0 indicates no linear relationship 1 indicates a perfect positive See Answer

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