Age at first marriage, part ii. exercise 4.16 presents the results of a 2006 - 2010 survey showing that the average age of women at first marriage is 23.44. suppose a social scientist believes that this value has increased in 2012, but she would also be interested if she found a decrease. below is how she set up her hypotheses. indicate any errors you see. h0 : ¯x = 23.44 years old ha : ¯x > 23.44 years old 4.21

She is only looking at the data greater that the mean value, thus the proper test recommended in this is to test via the two sided or two tailed test.

Step-by-step explanation:

Following is the error in  her test

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d