@=me,.,\\\\please show work :-0 17.a) an investigator wants to prove that the av
ID: 2950327 • Letter: #
Question
@=me,.,\please show work :-0
17.a) an investigator wants to prove that the average weight ofpassengers flying on small planes exceeds the FAA guidelines ofaverage total weight of 185 pounds (passenger weight includingshoes, clothes, and carry-on). suppose that a random sample of 51passengers showed an average total weight of 200 pounds with asample standard deviation of 59.5 pounds. assume that passengerstotal weights are normally distributed
A. what are the appropriate null and alternative hypotheses?
a. h0: µ=185 and hA: µ<185
b. h0: µ=185 and hA: µ>185@
c. h0: µ=185 and hA: µ not=185
d. h0: µ<185 and hA: µ=185
17b). what is the value of the test statistic
a. 1.50
b. 1.65
c. 1.80@
d. .05
e. none of the above
17)C. report your conclusion
a. the results are statistically significant so that the averagetotal weight of all passengers >185 pounds@
b. the results are statistically significant so that the averagetotal weight of all passengers <185 pounds
c. the results are not statistically significant: there is notenough evidence to conclude the mean >185 pounds
d. none of the above
Explanation / Answer
17.a) an investigator wants to prove that the average weight ofpassengers flying on small planes exceeds the FAA guidelines ofaverage total weight of 185 pounds (passenger weight includingshoes, clothes, and carry-on). suppose that a random sample of 51passengers showed an average total weight of 200 pounds with asample standard deviation of 59.5 pounds. assume that passengerstotal weights are normally distributed
A. what are the appropriate null and alternative hypotheses?
a. h0: µ=185 and hA: µ<185
b. h0: µ=185 and hA:µ>185@
c. h0: µ=185 and hA: µ not=185
d. h0: µ<185 and hA: µ=185
17b). what is the value of the test statistic
a. 1.50
b. 1.65
c. 1.80@
d..05
e. none of the above
17)C. report your conclusion
a. the results arestatistically significant so that the average total weight of allpassengers >185 pounds@
b. the results arestatistically significant so that the average total weight of allpassengers <185 pounds
c. the results are not statistically significant: there is notenough evidence to conclude the mean >185 pounds
d. none of the above
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