# HWK 2 - 0.11 223 0.04 224 0.01 225#6 BFDA 1 Average fat in...

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BFDA 1) New manufacturing production method 2) Is the mean cost of the new production method less than \$230 per hour? 3) 40 hours of the new method will be examined and the standard deviation is \$10 And the old method has a mean of \$220 St. Dev. = 1.58 4.74 4) First the null and alternative hypotheses need to be determined. Then the 40 hours of the new method will need to be examined to determine if the new method has an average mean of less than \$220 Hypothesis: Test Stat: 1) calculate x-bar 2) If Ho true (mu=220), the sampling distribution is: Normal ( 220, 10/40^.5,0) Sig. Level: Alpha = .05 Reject Ho: Reject Ho: if x-bar < 217 Norminv: 217 x-bar value: Prob. Fctn 215 0 216 0.01 217 0.04 218 0.11 219 0.21 220 0.25 221 0.21 222
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Unformatted text preview: 0.11 223 0.04 224 0.01 225 #6 BFDA 1) Average fat in a 3 quart container of orange juice. 2) Does a 3 quart container of orange juice contain 1 gram of fat or less? 3) 4) Hypothesis: St. Dev. 0.01 Test Stat: If Ho: is true, mu = 1 Normal ( 1, .05/100^.5, 0) Sig Level: Alpha = .05 Reject Ho: Reject Ho: if x-bar < 1.008224 Norminv: 1.01 x-bar Prob. Fnx 0.98 0.98 0.03 0.99 0.89 0.99 10.8 1 48.39 1 79.79 1.01 48.39 1.01 10.8 1.02 0.89 1.02 0.03 1.03 Ho: 220 μ≥ Ha: 220 μ˂ We believe n= 100 and = .05 ơ Ho: 1 μ ≤ Ha: >1 μ 215 216 217 218 219 220 221 222 223 224 225 0.05 0.1 0.15 0.2 0.25 0.3 Sampling Distribution of x-bar if n=40 Column C...
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