In 2013, the avNow suppose the results of carrying out the hypothesis test lead to rejection of the null hypothesis, = 21.4 years, that is, to the conclusion > 21.4 years. Classify that conclusion by error type or as a correct decision if in fact this year's mean age, , of all first-time mothers d) is 21.4 years. e) is greater than 21.4 years. 2.erage age of a first-time mother (the mother's age on the day of her first child's birth) was 21.4 (Source: www.babycenter.com). The ages of a random sample of first-time mothers are to be used to decide whether this year's mean age of first-time mothers is more than it was in 2013. The null and alternate hypotheses for the hypothesis test are: H0: = 21.4 years H1: > 21.4 years, where is this year's mean age of all first-time mothers. Explain what each of the following would mean. a) a Type 1 error- b) a Type 2 error- c) a correct decision