Question

6.4.14-T EQueson Help You randomly select and measure the contents ef 10 bottles of cough synup The results ( uid ounces) are shown to the tight. 4.246 4.186 4217 4.299 4255 4201 4.265 4246 4224 4236 Assume the sample is taken from a nomaly dieributed population Conetruct 90% confidence intervals for (a) tho population varlance e and (b) the population standard deviation a Interpret the results (a) The confidence intorval for the population vaiance is (Round to six decimal places as needed )y nter your answer in the edit fields and then click Check Answer parts remaining Clear A Check Answer 3:37 PM Type here to search 11/10/2019 DELL F3 F4 F5 F6 F10 &

Answer 1

Given, a: n=10 6:217 4.265 a=0.10 4.299 4.246 4.255, 4.246, 4.1864.201, 4:224 4.236 n s = {{4- x² = 0.001064278 x= Exi = 4.2575 Y X 16.31 333 sin = x. 069 = 382515 80% confidence interval for population vormance , @ of a lint (10-1)(0.001064278) 16.9 1898 (10-1) (0,001064278) 3325113 0.000566139448 < < 0.00 2880654582 0.000566 < 62 < 0.002881 interval for population standard go % confidence deviation is (n-15² (nons² av xrzint 10.000 866189448 <r < 0.002880654582 0.02379 5685 < o < 0.053671729 ie 10 .025794 <oco 053672 Interpretation, We are go% confident that todle is between 0.000566 and 0.002881. Also standard deviation is between 0.023794 population variance chorue population and 0.055672 .