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developed. took the drug for 3 months. Blood tests showed that x 8.4 with sample standard deviations- 2.9. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean However, it is thought that this drug may change blood pH. A random sample of 41 patients with arthritis Let x be a random variable that represents the pH of arterial plasma (ie, acidity of the blood). For healthy adults, the mean of the x distribution is -7.4.1 A new drug for arthritis has been on pH level of the blood. LAUSE SALT (a) What is the level of significance? 0.04 x State the null and alternate hypotheses. Ho: H-7A; H₁: 7A O Ho: -7.4; H₂: <74 O Ho: >7.A; H₁: -7.4 O Ho: H7A; H₁: H-74 OHH-7A; H₁: >7.A ✓ (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The Student's t, since the sample size is large and d is unknown. The standard normal, since the sample size is large and a is known. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and e is unknown. x

developed. took the drug for 3 months. Blood tests showed that x 8.4 with sample standard deviations- 2.9. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean However, it is thought that this drug may change blood pH. A random sample of 41 patients with arthritis Let x be a random variable that represents the pH of arterial plasma (ie, acidity of the blood). For healthy adults, the mean of the x distribution is -7.4.1 A new drug for arthritis has been on pH level of the blood. LAUSE SALT (a) What is the level of significance? 0.04 x State the null and alternate hypotheses. Ho: H-7A; H₁: 7A O Ho: -7.4; H₂: <74 O Ho: >7.A; H₁: -7.4 O Ho: H7A; H₁: H-74 OHH-7A; H₁: >7.A ✓ (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The Student's t, since the sample size is large and d is unknown. The standard normal, since the sample size is large and a is known. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and e is unknown. x

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Let x be a random variable that represents the pH of arterial plasma (1.e., acidity of the blood). For healthy adults, the mean of the x distribution is u 7.4.t A new drug for arthritis has been developed. However, it is thought that this drug may change blood pH. A random sample of 41 patients with arthritis took the drug for 3 months. Blood tests showed that x 8.4 with sample standard deviations 2.9. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH level of the blood. USE SALT (a) What is the level of significance? 0.04 x State the null and alternate hypotheses Hoi H-7.4; H₁: 7.4 O Hoi H- 7.4; H₁: < 7.4 o Hoi 17.4, Hội phụ 7A o Hoi Ha 7.4, Hai là 7A o Hoi Ho 7.4, Hig>74 (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The Student's t, since the sample size is large and a is unknown. The standard normal, since the sample size is large and a is known. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and o is unknown. x
Transcribed Image Text:Let x be a random variable that represents the pH of arterial plasma (1.e., acidity of the blood). For healthy adults, the mean of the x distribution is u 7.4.t A new drug for arthritis has been developed. However, it is thought that this drug may change blood pH. A random sample of 41 patients with arthritis took the drug for 3 months. Blood tests showed that x 8.4 with sample standard deviations 2.9. Use a 5% level of significance to test the claim that the drug has changed (either way) the mean pH level of the blood. USE SALT (a) What is the level of significance? 0.04 x State the null and alternate hypotheses Hoi H-7.4; H₁: 7.4 O Hoi H- 7.4; H₁: < 7.4 o Hoi 17.4, Hội phụ 7A o Hoi Ha 7.4, Hai là 7A o Hoi Ho 7.4, Hig>74 (b) What sampling distribution will you use? Explain the rationale for your choice of sampling distribution. O The Student's t, since the sample size is large and a is unknown. The standard normal, since the sample size is large and a is known. O The Student's t, since the sample size is large and a is known. O The standard normal, since the sample size is large and o is unknown. x
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