Adolescent suicides have increased in several US states during the COVID-19 pandemic.
Suppose we are interested in investigating if an educational intervention increases the percentage
of high school students seeking counseling services. We conducted a pilot study that involved
assigning a sample of 311 students to an intervention group and a sample of 310 students to a
traditional program. After a specified period, the number of students in each group who reported
visiting a counseling service center in the previous three months was determined. Among the
students assigned to the intervention group, 13 had visited a service center; among those
receiving traditional programs, 22 had visited a service center. (1) For each group, estimate the
proportion of students who had visited a counseling service center in the previous three months.
(2) State your null and alternative hypothesis and level of significance. (3) Test your null
hypothesis. Provide your calculations here. (4) Construct a 95% confidence interval for the
difference. (5) What do you conclude?.
Adolescent suicides have increased in several US states during the C.pdf
1. Adolescent suicides have increased in several US states during the COVID-19 pandemic.
Suppose we are interested in investigating if an educational intervention increases the percentage
of high school students seeking counseling services. We conducted a pilot study that involved
assigning a sample of 311 students to an intervention group and a sample of 310 students to a
traditional program. After a specified period, the number of students in each group who reported
visiting a counseling service center in the previous three months was determined. Among the
students assigned to the intervention group, 13 had visited a service center; among those
receiving traditional programs, 22 had visited a service center. (1) For each group, estimate the
proportion of students who had visited a counseling service center in the previous three months.
(2) State your null and alternative hypothesis and level of significance. (3) Test your null
hypothesis. Provide your calculations here. (4) Construct a 95% confidence interval for the
difference. (5) What do you conclude?
