True or False: Please read the following statements carefully, and then write T

Question

True or False: Please read the following statements carefully, and then write T (true) or F (false) on the line next to each statement __________ The sample median mu bar and any trimmed mean are unbiased estimators of the population mean mu if the random sample from a population is normally distributed ___________ Larger confidence intervals are more reliable and more precise in estimating population parameters. ___________ The area under the density curve of t distribution between the critical values -t alpha/2, n - 1 and t alpha/2, n - 1 is 1 - alpha. __________ An insurance company sets up a statistical test with a null hypothesis that the average time for processing a claim is 7 days, and an alternative hypothesis that the average time for processing a claim is greater than 7 days. After completing the statistical test, it is the concluded that the average time exceeds 7 days. However, it is eventually learned that mean process time is really 7 days. This is an example of a Type II error in the hypothesis test. ____________ A Type I error involves not rejecting the null hypothesis H_0 when H_0 is false ___________ In hypothesis test, increasing the sample size will reduce the change of making Type I error. __________ Sample standard deviation S can be used in both z test and t test but understand different conditions. __________ The smaller the p-value in a test of hypothesis, the more significant/stronger the results are

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Solving only one question as per Chegg policy. Please repost the rest

1) True, A trimmed mean is an unbiased estimator since it would remove both positive and negative values of equal magnitude.

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