Mathematics, 28.04.2021 19:40 guazet7650
The average American eats 1.5 cups of vegetables a day (may not be accurate). A researcher is interested in whether teenagers eat less vegetables on average than does the average American. She takes a sample of 25 teenagers and asks how much vegetables they eat. She finds that the mean amount of vegetables her subjects eat a day is 1.1 cups with a standard deviation of 0.5. What would be the appropriate test for the researcher to use to test whether teenagers actually do eat less vegetables than the average American at an alpha level of .01
Answers: 1
Mathematics, 21.06.2019 12:30
Which shows one way to determine the factors of x3 + 5x2 β 6x β 30 by grouping? x(x2 β 5) + 6(x2 β 5)x(x2 + 5) β 6(x2 + 5)x2(x β 5) + 6(x β 5)x2(x + 5) β 6(x + 5)
Answers: 3
Mathematics, 21.06.2019 23:00
The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.
Answers: 1
Mathematics, 21.06.2019 23:30
Select the correct answer from each drop-down menu. james needs to clock a minimum of 9 hours per day at work. the data set records his daily work hours, which vary between 9 hours and 12 hours, for a certain number of days. {9, 9.5, 10, 10.5, 10.5, 11, 11, 11.5, 11.5, 11.5, 12, 12}. the median number of hours james worked is . the skew of the distribution is
Answers: 3
The average American eats 1.5 cups of vegetables a day (may not be accurate). A researcher is intere...
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