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Mathematics, 07.11.2019 21:31, terriblexsiren
Husbands and wives, part i. the great britain office of population census and surveys once collected data on a random sample of 170 married couples in britain, recording the age (in years) and heights (converted here to inches) of the husbands and wives.5 the scatterplot on the left shows the wife’s age plotted against her husband’s age, and the plot on the right shows wife’s height plotted against husband’s height (a) describe the relationship between husbands’ and wives’ ages.
(b) describe the relationship between husbands’ and wives’ heights.
(c) which plot shows a stronger correlation? explain your reasoning.
(d) data on heights were originally collected in centimeters, and then converted to inches. does
this conversion a? ect the correlation between husbands’ and wives’ heights?
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Answers: 3
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Mathematics, 21.06.2019 21:40, dededese2403
Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels. ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0
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Husbands and wives, part i. the great britain office of population census and surveys once collected...
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