QUESTION 21A medical research team claims that the mean recovery time for patients after the new surgicaltreatment is more than 72 hours. A MTH 213 student wants to test this claim. The appropriate nulland alternative hypotheses areO Hoi HZ72 vs HaH<72O Ho: H<72 vs H 72O Ho: Hs 72 vs HaiH> 72O Ho: H=72 vs Ha H#72QUESTION 22A researcher is testing whether more than 40% of students prefer online classes. The appropriatenull and alternative hypotheses areOHo:ps 0.4 vs Haip> 0.4Hoip20.4 vs Hai p<0.4OHop-0.4 vs Ha'p # 0.4Hoi p<0.4 vs Hp0.4

here use basic of hypothesis test

Answered: A medical research team claims that the…

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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just the last part thank you!
Previously, 4% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 4% today. She randomly selects 135 pregnant mothers and finds that 4 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a= 0.1 level of significance. What are the null and alternative hypotheses? Họ: P = 0.04 versus H,: p < 0.04 (Type integers or decimals. Do not round.) Because npo (1- Po) =U (Round to one decimal place as needed.) 10, the normal model be used to approximate the P-value.
Previously, 5% of mothers smoked more than 21 cigarettes during their pregnancy. An obstetrician believes that the percentage of mothers who smoke 21 cigarettes or more is less than 5% today. She randomly selects 140 pregnant mothers and finds that 5 of them smoked 21 or more cigarettes during pregnancy. Test the researcher's statement at the a = 0.05 level of significance. What are the null and alternative hypotheses? < 0.05 Họ: p = 0.05 versus H,: p (Type integers or decimals. Do not round.) Because npo (1- Po) < 10, the normal model may not be used to approximate the P-value. (Round to one decimal place as needed.)

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A medical research team claims that the mean recovery time for patients after the new surgical treatment is more than 72 hours. A MTH 213 student wants to test this claim. The appropriate null and alternative hypotheses are