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REVIEW Hypothesis Tests of Means

REVIEW Hypothesis Tests of Means. 5 Steps for Hypothesis Testing Test Value Method. Develop null and alternative hypotheses Specify the level of significance, ? Use the level of significance to determine the critical values for the test statistic and state the rejection rule for H 0

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680 views • 37 slides

REVIEW t-Distribution

REVIEW t-Distribution. REVIEW. If tails = 1, TDIST (a,df,1) is calculated to determine P(t>a). Excel does not work on negative a. If tails = 2, TDIST (a,df,2) is calculated to determine P(|t| > a) = P(t > a or t < -a).

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240 views • 16 slides

Tests of significance

Tests of significance. Confidence intervals are used when the goal of our analysis is to estimate an unknown parameter in the population. A second goal of a statistical analysis is to verify some claim about the process on the basis of the data.

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996 views • 12 slides

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1 tdist - PowerPoint PPT Presentation

REVIEW Hypothesis Tests of Means

REVIEW t-Distribution

Tests of significance