18 & 20 following a. State the value of the mean of the sampling distribution of

Question

18 & 20

following a. State the value of the mean of the sampling distribution of. that is, ,- Calculate the value of the standard error of the sampling distribution of T, that is, ." cr/Vi 27. Cal 28. Dra number c. Dra w a graph of the distribution curve of X, similar the orange curve in Figure 2 on page 398. On the number line, indicate .-3 and + 3 pr d. Draw a graph of the distribution curve for the sampling distribution of x, similar to the green curve in Figure 2 on page 398. On the number line, indicate p, , ,-307, and , t 3c, Note how both graphs are centered at the population mean, but also note that the variability of the sampling distribution of is less than that of the original distribution of X. the area the are is less that x i an 9. = 10,=2,n=25 10. = 10, = 2, n = 100 11, =0, = 1,n=9 to calc 32. W Exerc betwe For E is nor devia 33. C 34 numb 35. 13. = 100, = 10, n = 100 14. = 100, = 10, n= 400 15. = 75, = 15, n = 36 16, = 75, = 15, n = 25 For Exercises 17-26, determine whether the sampling distribution of 3 is normal, approximately normal, or unknown. (Hint: Use the Three Cases on page 401.) 17. Systolic blood pressure readings are not normally distributed, with -78 and = 7. A random sample of size n 49 is taken 18. Systolic blood pressure readings are not normally distributed, with = 78 and = 7, A random sample of size n 25 is taken. 19. The gas mileage for a 2014 Toyota Prius hybrid vehicle is not normally distributed, with = 55 miles per gallon and 20. The gas mileage for a 2014 Toyota Prius hybrid vehicle is not normally distributed, with -55 miles per gallon 36. 37. prev dist 38. Exe betv or 8, A random sample of size n = 16 is taken and -8. A random sample of size n-64 is taken. 21. The pollen count distribution for Los Angeles in September is not normally distributed, with -10 and 2, A random sample of size 16 is taken 22·The pollen count distribution for Los Angeles in September is not normally distributed, with = 10 and 39. 40 nur A random sample of size 64 is taken. 23. Prices for boned trout are normally distributed, with = $4.00 per pound and : $0.50. A random sample of 43 size 16 is taken 24. Prices for boned trout are not normally distributed, with = $4.00 per pound and = $0.50. A random sample of size 36 is taken. co 25. Accountant incomes are not normally distributed, with an

Explanation / Answer

Q18) It is Unknown because sample size is not greater than 30 and neither the population is normal

Q20) It is approximately normal because sample size is greater than 30 because of central limit theorem

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

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