Twenty years ago, 51% of parents of children in high school felt it was a serious...
Twenty years ago, 51% of parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. A recent survey found that
252 of 750 parents of children in high school felt it was a serious problem that high school students were not being taught enough math and science. Do parents feel differently today than they did twenty years ago?
Use the alpha equals 0.1α=0.1 level of significance.
Because np 0 left parenthesis 1 minus p 0 right parenthesisnp01−p0equals=nothing
▼
equals=
less than<
not equals≠
greater than>
10, the sample size is
▼
greater than
less than
5% of the population size, and the sample
▼
can be reasonably assumed to be random,
cannot be reasonably assumed to be random,
is given to not be random,
is given to be random,
the requirements for testing the hypothesis
▼
are not
are
satisfied.
(Round to one decimal place as needed.)
Homework Answers
np(1 - p) = 750 * 0.51 * (1 - 0.51) = 187.4
Hence,
The correct answers in blanks will be:
187.4; >; Less than; Can be reasonably assumed to be normal; are
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