? Secure https /www.maths.com Student PlayerHomeworkaspehomeworkid-4886 6412&que

Question

? Secure https /www.maths.com Student PlayerHomeworkaspehomeworkid-4886 6412&questionlaasenushed-toeB; dde eea6acenter n SM 261-C2 Statistics Summer 2018 colleen Burke & 7/25/18 7:53 A Homework: Assignment #7 Chapter 7 Score: 0 of 1 pt 7.3.36 HW Score: 77.87%, 22.58 of 29 Question Help : ed in an experiment to test their ability to determine when one minute (or sibty seconds) has passed. Forty students yielded a chee ra 28 of 29 (26 complete) sample mean of 621 seconds Assuming that ?-9.5 seconds, construct and interpret a 95% confidence interval es m ate of the population mean of al students here to view page 1 of ? What is the 95% confidence interval for the population mean Type integers or decimals rounded to one decimal place as needed)

Explanation / Answer

Solution:- Given information x = 62.1, ? = 9.5 , n = 40

=> 95% confidence interval for the population mean = X +/- Z*?/sqrt(n)
= 62.1 +/- 1.96*9.5/sqrt(40)
= 59.1559 , 65.0440
= 59.2 , 65.0

  

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.