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1. Please test hypothesis for a mean or for a proportion. Please state null and alternative...

1. Please test hypothesis for a mean or for a proportion. Please state null and alternative hypothesis

Hypothesized mean = 125, sample mean = 135, standard deviation = 15; n= 500, confidence level = 95%

2. Test Hypotheses of population percent = 33%, sample percent = 31%,n= 120, confidence level = 99%

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Answer #1

Null hypothesis;HO: Alternative hypothesis;H1: Sample mean: Sample size: Population standard deviation: u= 125 125 X = 135 gi

This is a test of a single mean

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