Bat Home Intert Page Layout Formulas 6 Questions 14-17 are based on the followin

Question

Bat Home Intert Page Layout Formulas 6 Questions 14-17 are based on the following 47 The mean annual Medicare spending per enrollee is $13,800 with a standard devlation of $3,960. Answer 48 questions 10-13 based on the sampling distribution of s for random samples of size n - 81 enrollees 14914 The fraction ofsample means falling within ±$600 from the population mean is 50 a0.9026 b 0.8849 152 c 0.8675 153 d 08262 154 155 15 9596 of all R values from samples of size n = 81 deviate from the population mean of S13800 by no more 156, than ts 157 a 158 b 159 C 160 d 161 162 16 In repeated sampling of n = 81 enrollees, the middle interval which includes the middle 95% of sample 163 mean spending is i.- 164 a $12,380 $15,220 165 b $12,796 $14,804 166 c $12,938 $14,662 167 d $13,010 $14,590 168 169 17 In the previous question, to reduce the margin of error such that the middle 95% of all sample means 170 deviate from the population mean by no more than ±5300, the minimum sample size is- 151 $939 $902 $862 172 b 173 c 174 d 625 670 744 805 175 4E270HW4 + 7.3-7.4Inclass note..docx Ma

Explanation / Answer

14) z = (14400 - 13800)* 9/3960 = 1.37

So,

Total Area: 0.8262

15) C option

As 95% means 3standard deviations away from mean

16) C option

13800 - 862 = 12938

17) B option

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