Time left0:51:22

Question9

Not yet answered

Marked out of 1.00

Flag question

Question text

Scientists explored the heart rates (response variable) of children with and without medical conditions (explanatory variable). They wanted to assess if this physiological rate was affected by the health of the children. Theymeasured the heart rate of 14 kidswithoutand 17withmedical conditions. As these measurements were conducted in different sites of Hong Kong, assessments were done at different ambient temperatures:

Without		With
Temp	Heart rate	Temp	Heart rate
20.8 20.8 24 24 24 24 26.2 26.2 26.2 26.2 28.4 29 30.4 30.4	67.9 65.1 77.3 78.7 79.4 80.4 85.8 86.6 87.5 89.1 98.6 100.8 99.3 101.7	17.2 18.3 18.3 18.3 18.9 18.9 20.4 21 21 22.1 23.5 24.2 25.9 26.5 26.5 26.5 28.6	44.3 47.2 47.6 49.6 50.3 51.8 60 58.5 58.9 60.7 69.8 70.9 76.2 76.1 77 77.7 84.7

After plotting the data to explore relationships, scientists found a clear influence of ambient temperature on hear rates.Which of the following is the most appropriate statistical approach to analyse this type of data?

a.

Two-way ANOVA

b.

Linear regression

c.

One-way ANOVA

d.

t-test for 2 samples

e.

One-way ANCOVA

f.

None