Mathematics, 04.04.2020 13:05 nasrul3725
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 null hypothesis? Which of the following is an appropriate conclusion?
The results are statistically significant so the average total weight of all passengers appears to be greater than 185 pounds.
The results are statistically significant so the average total weight of all passengers appears to be less than185 pounds.
The results are not statistically significant so there is not enough evidence to conclude the average totalweight of all passengers is greater than 185 pounds.
Answers: 3
Mathematics, 21.06.2019 21:30, GreenHerbz206
Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.
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Mathematics, 22.06.2019 00:20, tiffany1711
Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?
Answers: 2
An investigator wants to assess whether the mean μ = the average weight of passengers flying on smal...
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