Asked Nov 16, 2019

The critical boundaries for a hypothesis test are z = +1.96 and -1.96. If the z-score for the sample data is z = -1.90, what is the correct statistical decision?


Expert Answer

Step 1

Decision rule based on critical value:

If Test statistic ≥ zcrit, then reject the null hypothesis H0:

If Test statistic ≤ –zcrit, then reject the null hypothesis H0:

Step 2

From the given information, the test statistics is 1.96 and the critical value is ±1.96.

Here, the test statistics and critical value both are simil...

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