Mathematics

Mathematics, 04.07.2019 00:10, AM28

Assume for a given study that the null hypothesis asserts the expected value of a phenomenon is 10. a research study results in a 95% confidence interval reported as [7.142, 9.865]. what decision would you make based on this confidence interval?

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Mathematics, 22.06.2019 00:30, madelyngv97

Arandomized controlled trial is designed to evaluate the effect of metoprolol in patients with heart failure. while preparing for statistical analysis, the researcher reviews some common types of statistical errors. which of the following statements is true regarding a type i error in a clinical study? a. the study is not significantly powered to detect a true difference between study groups. bthe null hypothesis is true but is rejected in error. c. the null hypothesis is false but is accepted in error. d. type i error is also known as beta and is usually 0.1 or 0.2. e. type i error depends on the study's confidence interval.

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Business, 12.07.2019 00:00, yarahatimm9345

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Mathematics, 02.08.2019 23:20, lefthandeddolan

An independent-measures research study uses two samples, each with n= 10 participants. if the data produce a t statistic of t = 2.095, which of the following is the correct decision for a two-tailed hypothesis test? reject the null hypothesis with α = .05 but fail to reject with α = .01 fail to reject the null hypothesis with either α = .05 or α = .01 reject the null hypothesis with either α = .05 or α = .01 cannot answer without additional informations

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