Mathematics, 12.08.2019 17:30, chancho3703
Stop signs highway safety engineers test new road signs, hoping that increased reflectivity will make them more visible to drivers. volunteers drive through a test course with several of the new- and old-style signs and rate which kind shows up the best.
a) is this a one-tailed or a two-tailed test? why?
b) in this context, what would a type i error be?
c) in this context, what would a type ii error be?
d) in this context, what is meant by the power of the test?
e) if the hypothesis is tested at the 1% level of significance instead of 5%, how will this affect the power of the test?
f) the engineers hoped to base their decision on the reactions of 50 drivers, but time and budget constraints may force them to cut back to 20. how would this affect the power of the test? explain."
Answers: 3
Mathematics, 21.06.2019 16:00, thicklooney
Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint. how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.
Answers: 1
Mathematics, 22.06.2019 01:00, laylalucifer
Asandwich shop has 18 tables. each table seats up to 4 people. to find the greatest number of people that can be seated, you can solve p4 ≤ 18. which step is the best way to solve the inequality? plz asap i repeat plz
Answers: 2
Mathematics, 22.06.2019 01:30, lexyjasmin6781
Write the equation of the circle centered at (10,-2) with radius 2
Answers: 2
Stop signs highway safety engineers test new road signs, hoping that increased reflectivity will mak...
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