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STAT Written Work 2 - CASINTO

Authored by JANARY CASINTO

Mathematics

11th Grade

Used 1+ times

STAT Written Work 2 - CASINTO
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30 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Suppose the P-value for a hypothesis test is 0.0304. Using a = 0.05, what is the appropriate conclusion?

a) Reject the null hypothesis

b) Reject the alternative hypothesis

c) Fail to reject the null hypothesis

d) Fail to reject the alternative hypothesis

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Define a Type I error?

The failure to reject a false null hypothesis
Rejecting a true null hypothesis
The acceptance to reject a null hypothesis
Accepting a true null  hypothesis

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

What is the only option for the null hypothesis? 

H0 = k
H0 > k
H0 < k
H0 ≠ k

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is not an option for an alternate hypothesis? 

Ha = k
Ha > k
Ha < k
Ha ≠ k

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

When do you use a t-value instead of a z-value? 

When n < 30
When n ≥ 30
When all of the planets align
When Ms. O said to

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is the FIRST step of a hypothesis test?

Check assumptions & conditions
Find your test statistic
State your conclusion
State your null & alternative hypotheses

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

A test is made of H0 : µ = 17 versus H1 : µ < 17 is performed using α = 0.01 significance level. The value of the test statistic is z = -2.68 and it is concluded that H0 is rejected.


If the true value of µ is 17, is the conclusion a Type I Error, Type II error, or a correct decision?

Type I

Type II

Correct Decision

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