Question

In: Statistics and Probability

Health researchers believe that the neonatal mortality rate is higher at home (MRH) than that in...

Health researchers believe that the neonatal mortality rate is higher at home (MRH) than that in the health centers (MRC). The neonatal mortality rates (both MRH and MRC) for 20 countries are recorded in SSPS file Ass_2Q2.sav.

  1. Do the data support researchers’ beliefs? Use α=0.05.
  2. Find a 95% confidence interval to investigate the researchers’ belief and explain its meaning.
  3. Check the assumptions of the above procedure.

Neonatal -mortality

group

9

3

4

7

6

6

3

7

10

6

7

8

9

6

9

3

9

4

7

6

2

0

8

5

4

3

0

2

1

4

4

6

3

1

2

2

3

3

1

4

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

           

Solutions

Expert Solution

using SPSS we have following output

  1. p-value from independent sample t-test is 0.000 which is less than 0.05 so we conclude that the neonatal mortality rate is higher at home (MRH) than that in the health centers (MRC).
  2. 95% confidence interval is (2.5659,5.26744) since confidence interval so not contain only positive numbers so,we conclude that the neonatal mortality rate is higher at home (MRH) than that in the health centers (MRC).
  4. from boxplot we can see the observations are approximately normal and observations are given independent so assumptions are met

orchestra answered 1 year ago
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