An intelligent guess about the characteristics of a population is called a hypothesis., fail to reject, reject, Ha represents the null hypothesis., fail to reject, reject, Rejecting a true null hypothesis leads to type I error., fail to reject, reject, In a two-tailed test, a 90% confidence level has an α= 0.05., fail to reject, reject, Left-tailed test is denoted by this notation Ha: µo > µ., fail to reject, reject, The critical value is just the same as the computed value., fail to reject, reject, The most commonly used level of significance is 95%., fail to reject, reject, In hypothesis testing, the null hypothesis is rejected when the test value is in the critical region., fail to reject, reject.

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