a. Having obtained a random sample from a population,you
Chapter 14, Problem 11(choose chapter or problem)
a. Having obtained a random sample from a population,you wish to use a chi-squared test to decide whetherthe population distribution is standard normal. If youbase the test on six class intervals having equal probabilityunder H0, what should be the class intervals?b. If you wish to use a chi-squared test to test H0: thepopulation distribution is normal with m 5 .5,s 5 .002 and the test is to be based on six equiprobable(under H0) class intervals, what should be theseintervals?c. Use the chi-squared test with the intervals of part (b)to decide, based on the following 45 bolt diameters,whether bolt diameter is a normally distributed variablewith m 5 .5 in., s 5 .002 in..4974 .4976 .4991 .5014 .5008 .4993.4994 .5010 .4997 .4993 .5013 .5000.5017 .4984 .4967 .5028 .4975 .5013.4972 .5047 .5069 .4977 .4961 .4987.4990 .4974 .5008 .5000 .4967 .4977.4992 .5007 .4975 .4998 .5000 .5008.5021 .4959 .5015 .5012 .5056 .4991.5006 .4987 .4968
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