Question

(About CLT) Suppose a population consists of the four numbers 2, 4, 6 and 8. Consider all random samples of size n that can be formed by sampling with replacement. That is to say, let us consider the box below when we make n draws with replacement. n draws 2 4 6 8 WR What is the sampling distribution of sample mean (X-bar) when n =25? Hint: 1) The notation used: Normal [mean, SD] 2) Choose the best one. Select one: a. Approximately Normal [6, 0.24] b. Approximately Normal [6, 0.49] c. Approximately Normal [6, 0.24] d. Approximately Normal [4, 0.24] e. Approximately Normal [100, 150] f. Approximately Normal [25, 0.33] g. Approximately Normal [5, 0.48] h. Approximately Normal [125, 0.24] i. Approximately Normal [6, 0.48] j. Approximately Normal [4, 0.49] (This continues Qs) Find P[2.5 ? \overline{X} ? 4.5]. Select one: a. Between 40% and 50% b. Between 60% and 70% c. Bigger than 90%. d. Between 50% and 60% e. Between 70% and 80% f. Between 30% and 40% g. Between 20% and 30% h. Less than 10% i. Between 10% and 20% j. Between 80% and 90%

          (About CLT) Suppose a population consists of the four numbers 2, 4, 6 and 8. Consider all random samples of size n that can be formed by sampling with replacement.
That is to say, let us consider the box below when we make n draws with replacement.
n draws
2 4 6 8
WR
What is the sampling distribution of sample mean (X-bar) when n =25?
Hint: 1) The notation used: Normal [mean, SD]
2) Choose the best one.
Select one:
a. Approximately Normal [6, 0.24]
b. Approximately Normal [6, 0.49]
c. Approximately Normal [6, 0.24]
d. Approximately Normal [4, 0.24]
e. Approximately Normal [100, 150]
f. Approximately Normal [25, 0.33]
g. Approximately Normal [5, 0.48]
h. Approximately Normal [125, 0.24]
i. Approximately Normal [6, 0.48]
j. Approximately Normal [4, 0.49]
(This continues Qs) Find P[2.5 ? \overline{X} ? 4.5].
Select one:
a. Between 40% and 50%
b. Between 60% and 70%
c. Bigger than 90%.
d. Between 50% and 60%
e. Between 70% and 80%
f. Between 30% and 40%
g. Between 20% and 30%
h. Less than 10%
i. Between 10% and 20%
j. Between 80% and 90%

(About CLT) Suppose a population consists of the four numbers 2, 4, 6 and 8. Consider all random samples of size n that can be formed by sampling with replacement.
That is to say, let us consider the box below when we make n draws with replacement.
n draws
2 4 6 8
WR
What is the sampling distribution of sample mean (X-bar) when n =25?
Hint: 1) The notation used: Normal [mean, SD]
2) Choose the best one.
Select one:
a. Approximately Normal [6, 0.24]
b. Approximately Normal [6, 0.49]
c. Approximately Normal [6, 0.24]
d. Approximately Normal [4, 0.24]
e. Approximately Normal [100, 150]
f. Approximately Normal [25, 0.33]
g. Approximately Normal [5, 0.48]
h. Approximately Normal [125, 0.24]
i. Approximately Normal [6, 0.48]
j. Approximately Normal [4, 0.49]
(This continues Qs) Find P[2.5 ? X ? 4.5].
Select one:
a. Between 40% and 50%
b. Between 60% and 70%
c. Bigger than 90%.
d. Between 50% and 60%
e. Between 70% and 80%
f. Between 30% and 40%
g. Between 20% and 30%
h. Less than 10%
i. Between 10% and 20%
j. Between 80% and 90%

Added by Karen N.

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