Mathematics, 09.04.2020 05:14 jmalfa
Marcus wants to determine how age and weight are related to exercise preference in his town. He selects a simple random sample of 75 overweight individuals from
the 25- to 35-year age group and records their age, weight, and exercise preference (sports, Pilates/yoga, dancing, none). He also selects an independent simple
random sample of 50 normal weight individuals from the 40-to 50-year age group and records the same information. Which is the most important observation about
Marcus's plan?
-He should have selected the two age groups randomly instead of choosing them specifically
-He will be unable to tell whether a difference in exercise preference is related to a difference in age or to a difference in weight
-The plan is well conceived and should serve the intended purpose
-His samples are too small
-He should have used equal sample sizes
Answers: 2
Mathematics, 21.06.2019 18:20
The total cost of anja’s trip to the dentist was $628.35. she paid a flat fee of $89.95 which included the checkup and cleaning and then had 4 cavities filled, each of which cost the same amount. which shows the correct equation and value of x, the cost of each cavity filling?
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Mathematics, 21.06.2019 19:00
The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.
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Marcus wants to determine how age and weight are related to exercise preference in his town. He sele...
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