# Texas Eco578 Exam II 2015 latest

November 24, 2016

There are 4 parts:

Part A: Select the correct answer for the following questions (1-10)

Part B: True/ False (11-20)

Part C: Answer the following questions (21-29)

Part D: Fill in the blank (30-40)

Part E: Work Problem (41-53) **All work must be shown step by step**

1. Scan your answer sheet and place it in ONE FILEat drop-box. (preferable)

Use MS-Word and place it in a drop-box.
v **Excel is not acceptable for this test

v **Deadline:Monday, October 26, 2014 by noon (CST)

v **All work in part D must be shown step by step in order to receive credit

Online Exam II

Part A: Multiple Choice (1–10)

____1. The cumulative probability distribution of a random variable X gives the probability that X is _______ to, some spacified value of X.

a. Greater than or equal c. Less than or equal

b. Equal d. None of the above

_____2. The_______is the smallest level of significance at which can be rejected.

a. Value of c. p value

b. Probability of commiting of Type I error d. vale of 1 –

_____3. What is the probability of P(-1.4 < Z 220. The critical value of the test statistic is ______________ .

a. 2.0639 b. 1.7081

c. 1.7109 d. 1.96

_____8.You perform a hypothesis test about a population mean on the basis of the following information: n = 50,= 100, ? = 0.05, s = 30, Ha: µ 4)

42. Work problem number 5 on page 6-14 (a-e).

a)

b)

c)

d)

e)

43. Work problem number 9 on page 6-28 (a-f).

a)

b)

c)

d)

e)

f)

44. Use problem number 4 on page 6-22 to fill in the table and answer the following questions (a-c).

X

P[X=x]

(X)(P[X=x])

[X-E(X)]

[X-E(X)]2

[X-E(X)]2 P[X=x]

0

1

2

3

4

5

6

Total

a) Expected value

b) Variance

c) Standard deviation

45. Work problem number 5 on page 7-23 (a-f).(**Please draw the graph)

a.

b.

c.

d.

e.

f.

46. Work problem number 9 on page 7-47 (a-f). (** Please draw the graph)

a.

a)

b.

c.

d.

e.

f.