Homework Help is Here – Start Your Trial Now!
Math
Statistics
Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. E Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. O A. Ho: H1 #H2 H1: H1> H2 O B. Ho: H1 = H2 H1: H1 # H2 O C. Ho: H1 = H2 H,: H1> H2 O D. Ho: H1 S H2 H: Hq> H2 IQ scores Medium Lead Level D High Lead 72 TF evel n2 = 11 88 92 X, = 88.187 85 89 S2 = 9.525 97 83 92 98 111 91

Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. E Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. O A. Ho: H1 #H2 H1: H1> H2 O B. Ho: H1 = H2 H1: H1 # H2 O C. Ho: H1 = H2 H,: H1> H2 O D. Ho: H1 S H2 H: Hq> H2 IQ scores Medium Lead Level D High Lead 72 TF evel n2 = 11 88 92 X, = 88.187 85 89 S2 = 9.525 97 83 92 98 111 91

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
Section10.4: Distributions Of Data
Problem 19PFA
See similar textbooks
icon
Related questions
Question

9.2/4

Identify the test statistic

p-value 

Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. A. Ho: H1 # H2 H1: 41> H2 B. Ho: H1 = H2 H1: 41 # H2 C. Ho: H1 = H2 H1: Hy> H2 O D. Ho: H1 S H2 H,: H1> H2 IQ scores Medium Lead Level D High Lead Level 72 n2 = 11 88 92 = 88.187 85 89 S2 = 9.525 97 83 92 98 111 91
Transcribed Image Text:Listed in the data table are IQ scores for a random sample of subjects with medium lead levels in their blood. Also listed are statistics from a study done of IQ scores for a random sample of subjects with high lead levels. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Click the icon to view the data table of IQ scores. a. Use a 0.01 significance level to test the claim that the mean IQ scores for subjects with medium lead levels is higher than the mean for subjects with high lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with medium lead levels and population 2 consists of subjects with high lead levels. A. Ho: H1 # H2 H1: 41> H2 B. Ho: H1 = H2 H1: 41 # H2 C. Ho: H1 = H2 H1: Hy> H2 O D. Ho: H1 S H2 H,: H1> H2 IQ scores Medium Lead Level D High Lead Level 72 n2 = 11 88 92 = 88.187 85 89 S2 = 9.525 97 83 92 98 111 91
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
SEE MORE TEXTBOOKS