You measure 20 dogs weights and find they have a mean weight of 48 pounds. Assume the population standard deviation is 11.4 pounds. Find a margin of error associated with a 90% confidence interval for the true population mean dog weight. Standard actrue population mean dog weight.Give your answer as a decimal, to two places.(a) This is a problem about a Cl for apopulation meanO population proportion(b) and I am being asked to compute theconfidence intervalOstandard errorOmargin of errorOpoint estimate(c) So the formula I will use isσMoE multiplier *√np (1-p)MoE multiplier *n(d) Since this is 90% CI, I will use a multiplier of1.6471.962.5760(e) to get a margin of error ofpounds

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You measure 20 dogs weights and find they have a mean weight of 48 pounds. Assume the population standard deviation is 11.4 pounds. Find a margin of error associated with a 90% confidence interval for the true population mean dog weight.

You measure 20 dogs weights and find they have a mean weight of 48 pounds. Assume the population standard deviation is 11.4 pounds. Find a margin of error associated with a 90% confidence interval for the true population mean dog weight.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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Question

Standard ac
true population mean dog weight.
Give your answer as a decimal, to two places.
(a) This is a problem about a Cl for a
population mean
O population proportion
(b) and I am being asked to compute the
confidence interval
Ostandard error
Omargin of error
Opoint estimate
(c) So the formula I will use is
σ
MoE multiplier *
√n
p (1-p)
MoE multiplier *
n
(d) Since this is 90% CI, I will use a multiplier of
1.647
1.96
2.576
0
(e) to get a margin of error of
pounds

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