Answers
First of all here, the sample size n equals 40 (>30) which is large sample size so, the distribution used will be the normal distribution insted of using exact t- distribution and one more thing since , we have to find confidence interval for population mean so, we will use test of significance for single population mean with finite population size N= 275
2 954 confidence interval for mean Calorie is given by at Za se fut S. E (1) ret Za Sm N-n HEK 7 H-1 X- z H-n come şi Mcht N1 that in Hh Soi option to is correct H = 275 2 u - 2670 n = 40 s- 33.0 ze=0.05 0.05 ) = 1.96
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2 670 - 1.96) ११० | 25-५० 25- 사 ५०, 2670 + 24-40 1-96/330 40 14 225- 2670 94.7106 ८.4 7 260 +g4.406 25. 2894 < - < 2764.1106 2575• 28 시 2764.71
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