Question

An investigator wants to assess whether the mean *m* =
the average weight of passengers flying on small planes
*exceeds* the FAA guideline of average total weight of
**190** pounds (passenger weight including shoes,
clothes, and carry-on). Suppose that a random sample of
**61** passengers showed an average total weight of
**210**pounds with a sample standard deviation of
**69.5** pounds. Assume that passenger total weights
are normally distributed. Suppose the investigator decides to
conduct a hypothesis test. **Find** is the
**P-value**? Give your answer to 4 decimal places.

Answer #1

An investigator wants to assess whether the mean μ = the average
weight of passengers flying on small planes exceeds the FAA
guideline of average total weight of 185 pounds (passenger weight
including shoes, clothes, and carry-on). Suppose that a random
sample of 20 passengers showed an average total weight of 195
pounds with a sample standard deviation of 30 pounds. Assume that
the population is normally distributed. For a significance level of
α = 0.05, do we reject the...

In response to the increasing weight of airline passengers, the
Federal Aviation Administration told airlines to assume that
passengers average 190 pounds in the summer, including clothing and
carry-on baggage. But passengers vary: the FAA gave a mean but not
a standard deviation. A reasonable standard deviation is 35 pounds.
Weights are not Normally distributed, especially when the
population includes both men and women, but they are not very
non-Normal. A commuter plane carries 25 passengers. What can we
expect...

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