SOLUTION: Hi Can someone please check my work? I am having trouble understanding confidence intervals and I am not sure if I am on the right track. 4. How much do adult male lions weigh

Question 1047237: Hi Can someone please check my work? I am having trouble understanding confidence intervals and I am not sure if I am on the right track.
4. How much do adult male lions weigh? Six adult males were captured, tagged and here are their weights:
480, 580, 470, 510, 390, 550
a. What is the point estimate for the population mean? 2980/6 ----> � = 496.7
b. Construct at 90% confidence interval for the population average weight of all adult male grizzly bears in the wild.
S x-bar = 27.2709
Df 6-1=5
t=2.0150
= x-bar � (t * Standard error)
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
a. What is the point estimate for the population mean?
2980/6 ----> = 496.7 (to the nearest tenth, yes)
mean and standard deviation: round to one more decimal place than your original data.
b.Construct at 90% confidence interval for the population average weight of all adult male grizzly bears in the wild.
sd 0f x-bar = 66.8(to nearest tenth)/ = 27.2709 0r s = Yes
Df 6-1=5 Yes
t=2.0150 0r 2.02 Yes
= x-bar � (t * Standard error) = Yes
Might recommend following site to check sample mean and corrected sample deviation for sample sets
numberempire.com/statisticscalculator.php
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