Mathematics, 02.11.2019 03:31 madelyngv97
In a survey, 600 adults in a certain country were asked how many hours they worked in the
previous week. based on the results, a 95% confidence interval for mean number of hours worked
was lower bound: 41.5 and upper bound: 45.6. which of the following represents a reasonable interpretation of the result? for those that are not reasonable, explain the flaw.
(a) there is a 95% chance the mean number of hours worked by adults in this country in the previous week was between 41.5 hours and 45.6 hours.
a. flawed. this interpretation makes an implication about individuals rather than the mean.
b. flawed. this interpretation implies that the mean is only for last week.
c. correct
d. flawed. this interpretation implies that the population mean varies rather than the interval
Answers: 2
Mathematics, 21.06.2019 21:30
Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?
Answers: 3
Mathematics, 22.06.2019 02:30
Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p.s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)
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Mathematics, 22.06.2019 02:30
Solve the system of equations. 2x-2y=-4 and x+y=8. show work
Answers: 1
Mathematics, 22.06.2019 03:30
Item 1 use the polygon tool to draw a rectangle with a length of 4 units and a height of 2 units. one of the sides of the rectangle falls on line ef , and the rectangle has a vertex of e. each segment on the grid represents 1 unit.
Answers: 3
In a survey, 600 adults in a certain country were asked how many hours they worked in the
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