Mathematics, 26.06.2019 16:20 keke6361
During the 1999 and 2000 baseball seasons, there was much speculation that the unusually large number of home runs that were hit was due at least in part to a livelier ball. one way to test the ālivelinessā of a baseball is to launch the ball at a vertical surface with a known velocity upper v subscript upper l and measure the ratio of the outgoing velocity upper v subscript upper o of the ball to upper v subscript upper l. the ratio upper r equals upper v subscript upper o baseline divided by upper v subscript upper l is called the coefficient of restitution. following are measurements of the coefficient of restitution for 40 randomly selected baseballs. the balls were thrown from a pitching machine at an oak surface. 0.6248 0.6237 0.6118 0.6159 0.6298 0.6192 0.6520 0.6368 0.6220 0.6151 0.6121 0.6548 0.6226 0.6280 0.6096 0.6300 0.6107 0.6392 0.6230 0.6131 0.6223 0.6297 0.6435 0.5978 0.6351 0.6275 0.6261 0.6262 0.6262 0.6314 0.6128 0.6403 0.6521 0.6049 0.6170 0.6134 0.6310 0.6065 0.6214 0.6141 suppose that any baseball that has a coefficient of restitution that exceeds 0.625 is considered too lively. based on the available data, what proportion of the baseballs in the sampled population are too lively? find a 95% lower confidence bound on this proportion. assume population is approximately normally distributed. round your answers to 3 decimal places.
Answers: 2
Mathematics, 21.06.2019 15:30
The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jasonās friendās statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friendās statement is accurate. the average hourly earnings will increase by 2%. b. his friendās statement is not accurate. the percent increase will be more than 2% c. his friendās statement is not accurate. the percent increase will be less than 2% d. his friendās statement is not accurate. the average hourly earnings will decrease
Answers: 3
Mathematics, 21.06.2019 16:30
We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be
Answers: 1
Mathematics, 21.06.2019 22:00
Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 ā 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 ā 6
Answers: 1
Mathematics, 22.06.2019 04:20
Atriangle abc has two side lengths of 28 ft. and 24 ft. if angle c is 91Ā°, what's the measurement of angle b?
Answers: 1
During the 1999 and 2000 baseball seasons, there was much speculation that the unusually large numbe...
Social Studies, 01.08.2019 06:30
Mathematics, 01.08.2019 06:30
History, 01.08.2019 06:30
Chemistry, 01.08.2019 06:30
Mathematics, 01.08.2019 06:30
History, 01.08.2019 06:30
History, 01.08.2019 06:30
History, 01.08.2019 06:30