1) An intelligent guess about the characteristics of a population is called a hypothesis. a) fail to reject b) reject 2) Ha represents the null hypothesis. a) fail to reject b) reject 3) Rejecting a true null hypothesis leads to type I error. a) fail to reject b) reject 4) In a two-tailed test, a 90% confidence level has an α= 0.05. a) fail to reject b) reject 5) Left-tailed test is denoted by this notation Ha: µo > µ. a) fail to reject b) reject 6) The critical value is just the same as the computed value. a) fail to reject b) reject 7) The most commonly used level of significance is 95%. a) fail to reject b) reject 8) In hypothesis testing, the null hypothesis is rejected when the test value is in the critical region. a) fail to reject b) reject

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