1.) A schoolteacher is concerned that her students watch more TV
than the average American child....
1.) A schoolteacher is concerned that her students watch more TV
than the average American child. She reads that according to the
American Academy of Pediatrics, the average American child in the
population watches µ = 4 hours of TV per day. She records the
number of hours of TV each of her six students watches per day. The
times (in hours) is presented below. Times: 6.2, 2.5, 5.5, 2.8,
4.8, 4.6 a.) What are your degrees of freedom and...
In a recent survey, it was stated that Americans watch
television on average four hours per...
In a recent survey, it was stated that Americans watch
television on average four hours per day. Assume that σ =
2. Using your friend from Becker as the sample, conduct a
hypothesis test to determine if the average for students at your
school is lower.
1, 4, 2, 1, 3,5,2, 4, 2, 3.5,6, 3,4, 2, 3, 2,1,4, 5, 2, 3.5, 4,
1, 2, 2.51, 4, 2, 1, 3,5,2, 4, 2, 3.5,6, 3,4, 2,3, 2,1,4, 5, 2,
3.5, 4,1,2,2.5 -...
The population spends an average of 8 hours per day working,
with a standard deviation of...
The population spends an average of 8 hours per day working,
with a standard deviation of 1 hour. A certain researcher believes
that Professors work less hours than average and wants to test
whether the average hours per day that Profs work is different from
the population. This researcher samples 10 professors and asks them
how many hours they work per day, leading to the following
dataset:
6, 12, 8, 15, 9, 16, 7, 6, 14, 15
Perform the appropriate...