Transcription of Case parameter estimator standard error Estimate …
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STA 2023 Practice Questions Exam 2 Chapter 7- sec Formulas Given on the test: Memorize these Formulas: General Format for Confidence Interval: estimator +/- (t or z) est. standard error General Format of Test Statistic: #()oestimatorfrom Ht orzestimate ofstderr Determining sample size for estimating proportions and means. Practice Problems on next page. case parameter estimator standard error Estimate of standard error Sampling Distribution one mean x n ns t (n-1) one prop. p p npp)1( CI: (1)ppn ST:npp)1(00 z 1. You take a random sample from some population and form a 96% confidence interval for the population mean, Which quantity is guaranteed to be in the interval you form? a) 0 b) c) x d) .96 2. Suppose you conduct a significance test for the population proportion and your p-value is Given a level of significance, which of the following should be your conclusion?
1. You take a random sample from some population and form a 96% confidence interval for the population mean, Which quantity is guaranteed to be in the interval you form?
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