- Subject Basic Statistics 1 (812.02 KiB) Viewed 23 times
Subject : Basic Statistics
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answerhappygod
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Subject : Basic Statistics
Subject : Basic Statistics
A company manufactures electric light bulbs whose lifetime is normally distributed with a mean of 800 hours and a standard deviation of 40 hours. If a random sample of 30 light bulbs yields an average life time of only 788 hours. Test the hypothesis that µ-800 hours versus the alternative µ* 800 hours. By using a significance level of 4%, it can be concluded that 1. O Z= -2.64 dan terima HO Z= -2.64 and accept H0 2. O Z= -2.64 dan tolak HO Z= -2.64 and reject HO 3. OZ -1.64 dan tolak HO Z= -1.64 and reject HO 4. O Z-1.64 dan terima H0 Z= -1.64 and accept HO
A company manufactures electric light bulbs whose lifetime is normally distributed with a mean of 800 hours and a standard deviation of 40 hours. If a random sample of 30 light bulbs yields an average life time of only 788 hours. Test the hypothesis that µ-800 hours versus the alternative µ* 800 hours. By using a significance level of 4%, it can be concluded that 1. O Z= -2.64 dan terima HO Z= -2.64 and accept H0 2. O Z= -2.64 dan tolak HO Z= -2.64 and reject HO 3. OZ -1.64 dan tolak HO Z= -1.64 and reject HO 4. O Z-1.64 dan terima H0 Z= -1.64 and accept HO
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