Big babies: The National Health Statistics Reports described a study in which a sample of 330 one-year-old baby boys were weighed. Their mean weight was25.4 pounds with standard deviation 5.3 pounds. A pediatrician claims that the mean weight of one-year-old boys is greater than 25 pounds. Do the dataprovide convincing evidence that the pediatrician's claim is true? Use the α = 0.05 level of significance and the critical value method with theCritical Values for the Student's t Distribution TablePart 1 of 5(a) State the appropriate null and alternate hypotheses.H₂ μ = 25H₁ μ< 25This hypothesis test is a left-tailedPart 2 of 5Part 3 of 50.0....XXtest.Find the critical value(s). Round the answer(s) to three decimal places. f there is more than one critical value, separate them with commas.Critical value(s): 3SO050*0 HX0=05(b) Compute the value of the test statistic. Round the answer to at least three decimal places.t= 3Español Part 3 of 5(b) Compute the value of the test statistic. Round the answer to at least three decimal places.t = 3Part 4 of 5RejectDetermine whether to reject HoPart: 4/5XPart 5 of 5Sthe null hypothesis Ho.(c) State a conclusion.There ispounds.XŚenough evidence to conclude that the mean weight of one-year-old boys is greater than 25xS

We have given thatSample size (n) = 330Sample mean (x̅) = 25.4Standard deviations (s) =…

Answered: Big babies: The National Health…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a test of the effectiveness of garlic for lowering cholesterol, 49 subjects were treated with raw garlic. Cholesterol levels were measured before and after the treatment. The changes (before minus after) in their levels of LDL cholesterol (in mg/dL) have a mean of 0.8 and a standard deviation of 2.04. Use a 0.10 significance level to test the claim that with garlic treatment, the mean change in LDL cholesterol is greater than 0. What do the results suggest about the effectiveness of the garlic treatment? Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim.
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