Mathematics

Mathematics, 19.07.2019 13:30, jevanoff

What is the average height of a 13 year old boy?

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Social Studies, 15.07.2019 23:20, gsbsjshzn

It is claimed that 10 year old boys and girls both have the same average height (52 inches). a researcher studies 65 boys and finds that their average height is 50.8 with a variance of 98. the 111 girls in the study had an average height of 53.1 with a variance of 123. construct a 95% confidence interval for the difference in the heights of 10 year old boys and girls based on these samples. does the confidence interval support the claim that 10 year old boys and girls have the same average height?

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Mathematics, 25.07.2019 03:10, AleOfficial101

It is claimed that 10 year old boys and girls both have the same average height (52 inches). a researcher studies 65 boys and finds that their average height is 50.8 with a variance of 98. the 111 girls in the study had an average height of 54.1 with a variance of 123. construct a 95% confidence interval for the difference in the heights of 10 year old boys and girls based on these samples. does the confidence interval support the claim that 10 year old boys and girls have the same average height?

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Physics, 08.10.2019 06:00, destinyleisantos

An agriculturalist working with australian pine trees wanted to investigate the relationship between the age and the height of the australian pine. a random sample of australian pine trees was selected, and the age, in years, and the height, in meters, was recorded for each tree in the sample. based on the recorded data, the agriculturalist created the following regression equation to predict the height, in meters, of the australian pine based on the age, in years, of the tree. predicted height 0.29+048 (age) which of the following is the best interpretation of the slope of the regression line? a. the height increases, on average, by 1 meter each 0.48 year. b. the height increases, on average, by 0.48 meter each year. c. the height increases, on average, by 0.29 meter each year. d. the height increases, on average, by 0.29 meter each 0.48 year. e. the difference between the actual height and the predicted height is, on average, 0.48 meter for each year.

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Mathematics, 16.10.2019 01:00, xxhighwolfxx7508

An agriculturalist working with australian pine trees wanted to investigate the relationship between the age and the height of the australian pine. a random sample of australian pine trees was selected, and the age, in years, and the height, in meters, was recorded for each tree in the sample. based on the recorded data, the agriculturalist created the following regression equation to predict the height, in meters, of the australian pine based on the age, in years, of the tree. predicted height 0.29+048 (age) which of the following is the best interpretation of the slope of the regression line? (a)the height increases, on average, by 1 meter each 0.48 year. (b)the height increases, on average, by 0.48 meter each year. (c)the height increases, on average, by 0.29 meter each year. (d)the height increases, on average, by 0.29 meter each 0.48 year. (e) the difference between the actual height and the predicted height is, on average, 0.48 meter for each year.

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