Sample means and the central limit theorem Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/university-statistics/sample-means-and-the-central-limit-theorem/quiz/

1. 1

   Samples of 36 from mean 50, sd 12: P(sample mean > 53)
   1. A) 1.5
   2. B) 50
   3. C) 0.0668
   4. D) 0.4013

2. 2

   Samples of 25 from mean 100, sd 15: P(sample mean < 97)

   Answer: ____________________

3. 3

   Samples of 16 from mean 70, sd 8: P(sample mean > 73)
   1. A) 1.5
   2. B) 0.0668
   3. C) 70
   4. D) 0.352

4. 4

   Samples of 64 from mean 20, sd 4: P(sample mean < 19.5)

   Answer: ____________________

5. 5

   Samples of 100 from mean 500, sd 50: P(sample mean > 510)
   1. A) 0.4207
   2. B) 0.0228
   3. C) 2
   4. D) 500

6. 6

   Samples of 16 from mean 50, sd 12: P(sample mean < 47)

   Answer: ____________________

7. 7

   Samples of 25 from mean 64, sd 10: P(60 < sample mean < 66)
   1. A) 8.185
   2. B) 0.8185
   3. C) 1
   4. D) 64

8. 8

   Samples of 40 from mean 50, sd 12: P(sample mean > 53)

   Answer: ____________________

9. 9

   Samples of 64 from mean 12, sd 2: P(11.6 < sample mean < 12.5)
   1. A) 9.224
   2. B) 0.9224
   3. C) 12
   4. D) 2

10. 10

    Samples of 9 from mean 60, sd 6: P(sample mean > 64)

    Answer: ____________________