Sec 8.3inprogress (1)

# Sec 8.3inprogress (1) - Sec 8.3 Testing a Claim About a...

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Sec. 8.3 Testing a Claim About a Proportion #10 n= 100p^= 0.08(sample_brown M significance level: α= 0.05 Claim of the Mars candy company that the percentage is equal to 13%. Step 1: Ho: p=0.13 (Claim) H1: p not equal to 0.13 Step 2: TS z= -1.4868 Step 3: P-value Method (Area) From step 2: z=-1.487…..

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Area on the left of z=-1.487.. 0.0685 Area on both tails( double your area) 0.13708 alpha= 0.05 ( given)- rejection region Step 4: Compare: p_value>alpha; 0.1371>0.05 Then FAIL TO REJECT Ho. Step 5: There is not sufficient evidence to reject the claim of brown M&Ms is equal to 13%. There is not suffcient evidence to warrant rejectio percentage of M&M is equal to 13%. #22 n= 71p^= 0.5492957746( p^=x/n ) significance level: α= 0.05 Step 1: Ho: p=0.5 H1: p>0.5( Claim) Step 2: TS z= 0.83075 Step 3:
P-value Method Find the area to the right of z= 0.831….. Area to the left of z=0.831… 0.7969 Area to the right of z=… 0.2031P-Value alpha= 0.05( given) Step 4: P-value>alpha; 0.203>0.05 then FAIL TO REJECT Ho. (FTR Ho) Step 5: There is not sufficient evidence to support the claim th

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