
4th Quarter Summative test Statistics and Probability

Quiz
•
Mathematics
•
11th Grade
•
Medium
GLACY ILANDAG
Used 8+ times
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
In a left-tailed test with 𝛼=0.01, the critical value of z is:
-2.576
-2.326
-2.326
-1.645
2.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Which of the following defines the area encompassed by the values not included in the non-rejection region or also the area of the tails of the distribution?
critical value
level of significance
rejection region
level of significance
3.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
In a right-tailed test, the rejection lies in the ________ tails of distribution.
up
left
right
down
4.
MULTIPLE CHOICE QUESTION
20 sec • 2 pts
If the level of significance decreased from 0.1 to 0.05, then the boundaries for the critical region move farther away from the center of the distribution.
true
false
either true or false
cannot be determined
5.
MULTIPLE CHOICE QUESTION
45 sec • 2 pts
Which of the following is the sketch of the normal curve if 𝑧<−1.645 𝑜𝑟 𝑧>1.645?
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
What is the critical value if the population variance is known, 𝑎=0.025, and it is a two-tailed test?
𝑧=±1.28
𝑧=±1.645
𝑧=±1.96
𝑧=±2.326
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
Given the graph of the normal curve at the right, what are the directional test of hypothesis and critical z value if 𝛼=0.01?
two-tailed test, ±2.33
two-tailed test, ± 2.575
left-tailed test, −1.645
right-tailed test, 1.645
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