Textbook Guide Statistical Sciences: Confidence Interval, Statistical Parameter, Null Hypothesis
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STA130H1 Full Course Notes
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In case of a right-tailed test, a researcher rejects the null hypothesis if the computed sample statistic is significantly higher than the hypothesized population parameter (considering the right side of the curve) The possibility of committing type l error is called () or the level of significance is the area under the curve which is in the rejection region. The p-value defines the smallest value of for which the null hypothesis beyond the critical values. can be rejected. Hypothesis test for population mean for given population standard deviation. The formula of determining z scores, for infidel values from a normal distribution is sample means are normally distributed, z formula applied to sample z = z = mean will be. When is known use z , when (cid:1866)(cid:1866)(cid:1867)(cid:1866) use t. The shape of the t distribution varies with degrees of freedom (df) instead of sample size.
