For the following questions, s

For the following questions, statewhether you would reject or fail to reject the null hypothesis:

1. Critical value z > 1.96 or z < -1.96

Test value: -2.87

1. Critical value z > 2.33

Test value: 1.85

1. Critical value z > 2.33

Test value: -2.87

1. Two tailed z test with an α=0.05

Test value: 1.85

1. One tailed z test in the positive direction with an α=0.01

Test value: 8.56

(A) CRITICALVALUE:

The given critical value is.

DECISIONRULE:

TESTVALUE:

The test value is .

INFERENCE:

Since the test statistic value(-2.87) is less than z critical value (-1.96), we reject the nullhypothesis.

(B) CRITICALVALUE:

The given critical value is.

DECISIONRULE:

TESTVALUE:

The test value is .

INFERENCE:

Since the test statistic value(1.85) is less than z critical value (2.33), we fail to reject thenull hypothesis.

(C) CRITICALVALUE:

The given critical value is.

DECISIONRULE:

TESTVALUE:

The test value is .

INFERENCE:

Since the test statistic value(-2.87) is less than z critical value (2.33), we fail to reject thenull hypothesis.

(D) TWO TAILED Z TEST WITH AN:

CRITICALVALUE:

The z critical value with is.

DECISIONRULE:

TESTVALUE:

The test value is .

INFERENCE:

Since the test statistic value(1.85) is less than z critical value (1.96), we fail to reject thenull hypothesis.

(E) ONE TAILED Z TEST IN POSITIVEDIRECTION WITH AN :

CRITICALVALUE:

The z critical value with is.

DECISIONRULE:

.

TESTVALUE:

The test value is .

INFERENCE:

Since the test statistic value(8.56) is greater than the z critical value (2.33), we reject thenull hypothesis.

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