Question

True or False. (Determining sample size n for the purpose of estimating mean) For a specified sampling error (SE) and given population standard deviation, increase in the confidence level (1-alpha) will lead to a larger sample sizen. True False

Answer 1

the samare Solution or ay we know confidenee Interoval is inversely pró'o bora tion at to noot of sample size Polares statistic AT EI Estirpatow of Parapeter be the payameter and bring the population Standard deviation. of the tentoffix snl I tentoft barameters 6 Let then tl of , Tt cutoff SE (TD] then C.I of M€ IT-leutoff) SECT? SECT) - Standard error of T olun sok if n less and vice versa. ANSO False. is lange confidence internal length will be

by Smatter p-value means p-raine þ-value less means statistic T shifts a falls under the null hypothesis. stronger the support of nesarch probability that in the the critical region statistie T shifting more and more deepero in the critical region under the muu hypothesis, that implies statistic to it coming from a different samples are coming from different population tool which population we muu hypothesis research hypothesis, Hence it suggesting that we should reject the nuu hypothers and accept the alternate hypothesis. boralne associated ANE: & The smaller the a test of hypothesis, the is not the assume unden the with hypothesis False [ from the above explanation