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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 was 25.4 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 data provide convincing evidence that the pediatrician's claim is true? Use the α = 0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₂μ = 25 H₁ μ< 25 This hypothesis test is a left-tailed Part 2 of 5 Part 3 of 5 0.0.... X X test. S O

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 was 25.4 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 data provide convincing evidence that the pediatrician's claim is true? Use the α = 0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₂μ = 25 H₁ μ< 25 This hypothesis test is a left-tailed Part 2 of 5 Part 3 of 5 0.0.... X X test. S O

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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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 was 25.4 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 data provide convincing evidence that the pediatrician's claim is true? Use the α = 0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₂ μ = 25 H₁ μ< 25 This hypothesis test is a left-tailed Part 2 of 5 Part 3 of 5 0.0.... X X test. 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): 3 S O<O 0>0 5 0*0 H X 0=0 5 (b) Compute the value of the test statistic. Round the answer to at least three decimal places. t= 3 Español
Transcribed Image Text: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 was 25.4 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 data provide convincing evidence that the pediatrician's claim is true? Use the α = 0.05 level of significance and the critical value method with the Critical Values for the Student's t Distribution Table Part 1 of 5 (a) State the appropriate null and alternate hypotheses. H₂ μ = 25 H₁ μ< 25 This hypothesis test is a left-tailed Part 2 of 5 Part 3 of 5 0.0.... X X test. 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): 3 S O<O 0>0 5 0*0 H X 0=0 5 (b) Compute the value of the test statistic. Round the answer to at least three decimal places. t= 3 Español
Part 3 of 5 (b) Compute the value of the test statistic. Round the answer to at least three decimal places. t = 3 Part 4 of 5 Reject Determine whether to reject Ho Part: 4/5 X Part 5 of 5 S the null hypothesis Ho. (c) State a conclusion. There is pounds. X Ś enough evidence to conclude that the mean weight of one-year-old boys is greater than 25 x S
Transcribed Image Text:Part 3 of 5 (b) Compute the value of the test statistic. Round the answer to at least three decimal places. t = 3 Part 4 of 5 Reject Determine whether to reject Ho Part: 4/5 X Part 5 of 5 S the null hypothesis Ho. (c) State a conclusion. There is pounds. X Ś enough evidence to conclude that the mean weight of one-year-old boys is greater than 25 x S
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