Question

LES, Seconds Question Completion Status m ple of. I A b ined from appelation with 12. there is a greater than the pap e , what late for the . 10.67 5.81 0.67 QUESTION 25 If a sample of 0.83 25 scores is obtained from a population with 17 and 12, what is the core corresponding to a sample mean of M 472 QUESTION 26 a sample of 0.39 60 scores is obtained from a population with 125 and 12. What is the corresponding to a sample mean of M 122 6. Which of the following samples would be considered extreme and unrepresentative for this population? QUESTION 27 A sample is selected from a normal population with y - 20 and -M-27 and n-25 M-35 and 4 M. 35 and n-25 M.27 and 4 16 co obtained from anomal population with 21 and What is the probability of obtaining a mean greater than M 225 for this sample QUESTION 28 A random sample of 0.0668 0.7500 1.3333 0.7734 QUESTION 29 A random sample of 0.3218 0.9634 weed from a normal distribution and a 12. What is the probability that the sample mean will be between M a nd 336 Click Sand Sa l e Sall

Answer 1

24)

Ζ = X - μ σ/νη

Here, X = $\mu$ + 9

μ+9 – μ 12/16

12/ 16

Option - A) 3

25)

Μ – μ Ζεση

47 – 17 12/25



= 12.5

Option - C) 12.5

26)

Μ – μ Ζεση

_122 – 125 12/60

= -1.94

Option - B) -1.94

27) Option - C) M = 35 and n = 25

Because for this

35 – 20 Z= 6/26 1/25 - 12.5

28) P(M > 22.5)

= P((M - $\mu$ )/(
ulo
) > (22.5 - $\mu$ )/(
ulo
))

= P(Z > (22.5 - 21)/(4/$\sqrt {16}$))

= P(Z > 1.5)

= 1 - P(Z < 1.5)

= 1 - 0.9332

= 0.0668

Option - A) 0.0668

29) P(831 < M < 836)

= P((831 - $\mu$ )/(
ulo
) < (M - $\mu$ )/(
ulo
) < (836 - $\mu$ )/(
ulo
))

= P((831 - 834)/(12/$\sqrt {121}$) < Z < (836 - 834)/(12/$\sqrt {121}$))

= P(-2.75 < Z < 1.83)

= P(Z < 1.83) - P(Z < -2.75)

= 0.9664 - 0.0030

= 0.9634

Option - B) 0.9634