23096839 0& eISBNng781305647305 #lapar entige23030a a C ng.cengage.com/static/nb

Question

23096839 0& eISBNng781305647305 #lapar entige23030a a C ng.cengage.com/static/nb/ui/index.html?nbld-627637&nbNodelde; carolina Barros (? MINDTAP From Cergag eview: Chapter 7 Exam e on Oct 9 at 1 AM BRT Assignment Score: 0.00% Assignment: Review: Chapter 7 Exam (Practice) Save Submit Assignment Question 8 of20 6. Check My Work A researcher is working with a population of data. He needs the standard distance between sample mean and the population mean to be at most 1.3- If the 8. standard deviation of the population is 5, how large will the sample size need to be? 9. 10. O b.11 11. 010) c.14 a. 10 12. d. 15 13.O 14 15. O 16 O 18. 19. 20. Check My Work O 0- Icon Ko

Explanation / Answer

standard deviation = 5

let the sample size be n

standad error = 5/n

standard distance between sample mean and the population mean to be atmost 1.3

i.e standard error <= 1.3

5/n <= 1.3

n >= 5/1.3 >= 3.8462

n >= 3.84622

n >= 14.79 ~ 15

n>= 15

so sample size needed to be 15 i.e (d)

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