Mathematics, 24.04.2020 17:51 taylorbohr6823
The "spring like effect " in a golf club could be determinedby the measuring the coefficient of restitution(the ratio of theoutbound velocity to the inbound velocity of a golf ball fired at aclub head) 12 randomly selected drivers produced by 2 differentclub makers are tested and the coefficient of restitutionmeasured:
club1
0.8406
0.8104
0.8234
0.8198
0.8235
0.8562
0.8123
0.7976
0.8184
0.8265
0.7773
0.7871
club 2
0.8305
0.7905
0.8352
0.838
0.8145
0.8465
0.8244
0.8014
0.8309
0.8405
0.8256
0.8476
a)is there evidence that coefficient of restitution is approx. normally distributed? is an assumption of equal variancesjustified?
b)test the hypothesis that both brands of clubs have equalmean coefficient of restitution. α=.05. what isP-value of test.
c)construct a 95%CIon the mean
d)what is the power of the statistical test in part(b)todetect a true difference in mean
e)what sample size would be required to detect a truedifference in mean of .1 with a power of approx.08
Answers: 3
Mathematics, 21.06.2019 19:30, ginocousins06
Fa bus driver leaves her first stop by 7: 00 a. m., her route will take less than 37 minutes. if she leaves after 7: 00 a. m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?
Answers: 3
Mathematics, 21.06.2019 20:00, Ap621765
In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d. what is the height of the tide after 93 hours?
Answers: 1
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