(a) Write the claim mathematically and identify Upper H 0 and Upper H 1 ​(b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find the standardized test statistic.​ (d) Decide whether to reject or fail to reject the null hypothesis. A medical researcher says that at least 23​% of adults are smokers. In a random sample of 200 adults, 22.5​% say they are smokers. At alpha = 0.01 ,do you have enough evidence to reject the​ researcher's claim?   ​(a) Which of the following correctly states Upper H 0 and Upper H 1​?   (b) What is​ (are) the critical​ value

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(a) Write the claim mathematically and identify Upper H 0 and Upper H 1

​(b) Find the critical​ value(s) and identify the rejection​ region(s). (c) Find the standardized test statistic.​ (d) Decide whether to reject or fail to reject the null hypothesis.
A medical researcher says that at least 23​% of adults are smokers. In a random sample of 200 adults, 22.5​% say they are smokers. At
alpha = 0.01 ,do you have enough evidence to reject the​ researcher's claim?
 
​(a) Which of the following correctly states Upper H 0 and
Upper H 1​?
 
(b) What is​ (are) the critical​ value(s)z 0 ​?
z 0=
​(Use a comma to separate answers as needed. Round to two decimal places as​ needed.)
 
(c) Which of the following graphs has the rejection​ region(s) shaded​ correctly?
 
​(d) Which of the following is the correct conclusion for the​ test?
A. Reject Upper H 0. There is not enough evidence to reject the claim that at least 23​% of adults are smokers.
 
B. Reject Upper H 0. There is enough evidence to reject the claim that at least 23% of adults are smokers.
 
C.Fail to reject Upper H 0. There is not enough evidence to reject the claim that at least 23​% of adults are smokers.
 
D. Fail to reject Upper H 0. There is enough evidence to reject the claim that at least 23​% of adults are smokers.
 
 
А.
В.
С.
Q
Transcribed Image Text:А. В. С. Q
(a) Which of the following correctly states H, and H, ?
O A. Ho:p<0.23
H,:p20.23
В. Но: р20.23
H,:p<0.23
О с. Но: р> 0.23
H,:ps0.23
D. Ho: ps0.23
E. Ho: p= 0.23
O F. Ho:p=0.23
Transcribed Image Text:(a) Which of the following correctly states H, and H, ? O A. Ho:p<0.23 H,:p20.23 В. Но: р20.23 H,:p<0.23 О с. Но: р> 0.23 H,:ps0.23 D. Ho: ps0.23 E. Ho: p= 0.23 O F. Ho:p=0.23
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