View the step-by-step solution to:

# The results cf a recent study regarding smelting and three types of illness are shown in the fnllnwing table. NeuSmnkers Smnkers Tntals Illness...

We are interested in determining whether or not illness is independent of smoking.

a.State the null and alternative hypotheses to be tested.b.Show the table of the expected frequencies.c.Compute the test statistic.d.The null hypothesis is to be tested at the 5% level. Determine the critical value for this test. What do you conclude?e.Determine the p-value and perform the test. Make a conclusion.

The results cf a recent study regarding smelting and three types of illness are shown in the fnllnwing table. Neu—Smnkers Smnkers Tntals
Illness
Emphysema EH SE! TD TD ED 1513'
Heart prchlem 4:] 40 ED
Ea lacer 130 l'l'ﬂ EDIE}
Tntals We are interested in determining whether er net illness is independent cf smelting- a. State the null and alternative hvpntheses tn he tested- h- Show the table cf the expected frequencies. c. Ccmpute the test statistic.
The null hvpnthesis is tn he tested at the 5% level. Determine the critical value fer this
test- What dc vnu cenclude? e- Determine the Jnrvalue and perferm the test- Make a ccnclusinn.

a)   Ho: illness is independent of smoking. Ha:  illness is dependent of smoking. b)... View the full answer

l1'] Non-moke rs Smokers 30.33 30.6? 130.00 1T0.00 Emphvs ema
Ex IECtEd H e art problem EX nected Total Emphysema Observed T0
Expected T000 O - E 0.00 O — E ' I E 5.21 Heart problem Observed 150...

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents