# Sec 8.4 - Sec 8.4 Testing a Claim About a Mean#12 n= 62 xx...

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Sec. 8.4 Testing a Claim About a Mean #12 n= 62 = x x 1.911 s= significance level: α= 0.05 Step 1: Ho: µ= 1.8 support the claim H1: µ> 1.8(claim) not support the claim opposite <=1.8 always Ho is equal, do not use < Step 2: TS t= 0.82067 Step 3: P-value Method H1> Area to the left o 0.821 0.207515 α= 0.05 x t s n

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Step 4: P-value > alpha ; 0.208>0.05 fail to reject Ho claim H0, but fail to rejec Step 5: There is not sufficient evidence to support the cl that the mean weight of discarded plastic is grea #16+Wn= 48 = x x 10.5min s= significance level: α= 0.01 Step 1: Ho: µ H1: µ Step 2: TS t= Step 3: P-value Method x t s n
Step 4: Step 5: #22 n= 10 significance level: α= 0.01 Step 1: Reject the claim Ho: µ= 1100 Do not reject the claim

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H1: µ≠ 1100 two tails Step 2: TS t= 0.81313 Step 3: P-value Method two-tailed test p-valu0.437122 0.7814 α= 0.01 0.2186 0.43712 Step 4: P-value>alpha; 0.437>0.01 FTR Fail to reject the claim H0

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