Let X be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let why be a variable that represents the percentage of successful field goals a professional basketball player mix in a season. A random sample of n=6 professional basketball players gave the following information. x 67 64 75 86 73 73 y 42 40 48 51 44 51 ΣX=438 Σy=276 Σx2=32264 Σy2= 12806 Σxy= 20295 r= .823 a) use 5% level of a significance to test the claim that p> 0.( roundyour answers to two decimal places) t= critical t= Se=2.9785 a= 8.997 b=.5069 x=73.000 b) find that predicted percentage of successful field goals for a player with x=81% successful free throws. (Round your answer to two decimal places) ___% c) find a 90% confidence interval for y when X = 81% successful free throws. (Round your answer to two decimal places) Lower limit=__% upper limit=__% use a 5% level of significance to test the claim that b>o. (Round your answers to two decimal places) t= critical t=
Let X be a random variable that represents the percentage of successful free throws a professional basketball player makes in a season. Let why be a variable that represents the percentage of successful field goals a professional basketball player mix in a season. A random sample of n=6 professional basketball players gave the following information.
x 67 64 75 86 73 73
y 42 40 48 51 44 51
ΣX=438 Σy=276 Σx2=32264 Σy2= 12806 Σxy= 20295 r= .823
a) use 5% level of a significance to test the claim that p> 0.( roundyour answers to two decimal places)
t=
critical t=
Se=2.9785 a= 8.997 b=.5069 x=73.000
b) find that predicted percentage of successful field goals for a player with x=81% successful free throws. (Round your answer to two decimal places)
___%
c) find a 90% confidence interval for y when X = 81% successful free throws. (Round your answer to two decimal places)
Lower limit=__%
upper limit=__%
use a 5% level of significance to test the claim that b>o. (Round your answers to two decimal places)
t=
critical t=
Step by step
Solved in 2 steps with 8 images
