Question

Question 9 (1 point) Hypothesis Test. Do males wait longer to get married? In 1960, a study of 83 males showed the average age at which they first married was 23.3 years with a standard deviation of 4.9 years. Are men waiting longer to get married nowadays? Test at the .05 level of significance given that in 2019 a sample of 64 men was collected in which the average age at which they were first married was 24.2 years with a standard deviation of 5.3 years. Question. What is the correct statistical procedure? t-test Independent Samples t-test Matched Pairst-test None of these Question 10 (1 point) Hypothesis Test. Do males wait longer to get married? In 1960, a study of 83 males showed the average age at which they first married was 23.3 years with a standard deviation of 4.9 years. Are men waiting longer to get married nowadays? Test at the .05 level of significance given that in 2019 a sample of 64 men was collected in which the average age at which they were first married was 24.2 years with a standard deviation of 5.3 years. Question. What is the correct null hypothesis? H : H1960 = mu2019 H : 41960 + mu2019 H : 1960 =mu 2019 O H: 1 1960 + mu2019

Answer 1

9.

since we have to test that in 2019 males waiting time for marriage is more than that of males in 1960

so basically here have to test that if mean age of marriage in 2019 is more than that of meles in 1960

and we do not have information about population standard deviation so we will use t statistics

Hence

correct option is

Independent samples t test

10.

since we have to test that mean age of males marriage in 2019 is greater than that in 1960 so in null we can consider both are equal

$H_0:\mu_{1960}=\mu_{2019}$