واجب الاسبوع الخامس ممكن مساعده Using One-Sample t-test, calculate the standard error of the mean (SEM) when the standard deviation of the original distribution is 1.25 and the sample size is 40. Using the SEM derived in problem 4, calculate the t-statistic when the mean sample size is 2 and the predicted value is 1. الي يعرف الطريقه بليز يساعدني |
1) Define null hypothesis. Answer: An observation that is based on an unproven theory 2) Theoretical statistics often model pivotal variables. Define a pivotal variable/ Answer: When a distribution is fixed a pivotal variable is the function of statistics and parameters of a study 3) How is a p-value defined? Answer: Assuming a hypothesis is true, a p-value is defined as the probability of your data being inconsistent with your hypothesis 4) Using One-Sample t-test, calculate the standard error of the mean (SEM) when the standard deviation of the original distribution is 1.25 and the sample size is 40. Answer: SEM= s/ГN = 0.197 5) Using the SEM derived in problem 4, calculate the t-statistic when the mean sample size is 2 and the predicted value is 1. Answer: t= x-µ/ SEM; 1/0.197= 5 |
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