47. Refer to Problem 6. The coefficient of determination equals 1e a. 0.6472 b.
ID: 3324783 • Letter: 4
Question
47. Refer to Problem 6. The coefficient of determination equals 1e a. 0.6472 b. -0.647 c, d. 48. The critical F value with 6 numerator and 60 denominator degrees of freedom-t-asis a. 3.74 b. 2.25 c. 2.37 d. 1.96 49 A sample of 20 cans of tomato Juice showed a standard deviation of 0.4 ounces. A 95% confidence interval estimate of the variance for the population is a. 0.2313 to 0.8533 b. 0.2224 to 0.7924 c. 0.3042 to 0.5843 d. 0.0925 to 0.3413 S0. The manager of the service department of a local car dealership has noted that the service times of a sample of 30 new automobiles has a standard deviation of 6 minutes. A 95% confidence interval estimate for the standard deviation of the service times for all their new automobiles is a. 16.047 to 45.722 b. 4.778 to 8.066 c. 2.93 to 6.3 d. 22.833 to 65.059 Problem 7 In a completely randomized n experimental design involving five treatments, 13 observations were recorded for each of the five treatments. The following information is provided. SSTR-200 (Sum Square Between Treatments) SST- 800 Total Sum Square 51. Refer to Problem 7. The sum of squares within treatments (SSE) is a. 1,000 b. 600 c. 200 d. 1,600 Refer to Problem 7. The number of degrees of freedom corresponding to between treatments is a. 60 b. 59 C. d. 4 52. 53. Refer to Problem 7. The number of degrees of freedom corresponding to within treatments is a. 60 b. 59 c. Refer to Problem 7. The mean square between treatments (MSTR) is a. 3.34 b. 10.00 c. 50.00 d. 12.00 54.Explanation / Answer
48. Correct answer: Option (B) 2.25
In excel,
=F.INV.RT(0.05,6,60)
49. Correct answer: Option (D)
since
95% Confidence Interval for the variance:
0.0925354 < VAR < 0.3413237
50. Correct answer: Option (B)
95% Confidence Interval for the St. Dev.:
4.778439 < SD < 8.065889
51. Correct answer: Option (B)600
since SSE = SST - SSTR = 800-200 = 600
52. Correct answer: Option (D) 4
53. Correct answer: Option (a) 60
N-k = 13*5 - 5 = 65-5 = 60
54. Correct answer: Option (c) 50
since
MSTR = SSTR / k-1 = 200/4= 50
Related Questions
Hire Me For All Your Tutoring Needs
Integrity-first tutoring: clear explanations, guidance, and feedback.
Drop an Email at
drjack9650@gmail.com
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.