Question: A researcher tests the null hypothesis that = 4 and reports the following 95% confidence interval: 95% CI 0.50, 3.50. Based on the information provided

A researcher tests the null hypothesis that = 4 and reports the following 95% confidence interval: 95% CI 0.50, 3.50. Based on the information provided by the confidence interval, what would the decision have been for a two-tailed test using hypothesis testing at a .05 level of significance?

a. Fail to reject the null hypothesis.

b. Reject the null hypothesis.

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