BSEC Test 2 Pg 2

# BSEC Test 2 Pg 2 - (0.084 0.135>99 CI Ch 6 topics...

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(1.96)^2 0.5(1-0.5) / 0.03^2 n=1067.111=1068 Part B. ^p=0.26 (Za/2)^2 ^p(1-^p) / E^2 1.96^2 (0.21)(0.7) / 0.03^2 =821.25 o=822 Confidence intervals – hypothesis testing – correlation & linear regression Ch6. ci for u, p Ch7. testing for u, p Hypothesis testing i. Ho; u>=uo ii. Ha; u<uo Z=x_-uo / O/sqrtN 16. (0.816, 0.843) >95% CI (0.812, 0.848) > 99% CI 20. (0.090, 0.129) >95% CI
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Unformatted text preview: (0.084, 0.135) >99% CI Ch 6, topics covered in ch 7 Ho >=,<=, = Ha >, <, Not equal to. 1 Population (life spans of all light bulbs produced by the factory) mean, u, is unknown. 2. Claim , U >= 750 hours. 3. Sample size, n=36 4. Sample mean x_=745 hours sample std dev s=60 hrs o=-0.02 if z < -Za, reject Ho at a level of significance...
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