You decide to research further this seemingly contradictory guidance, hypothesiz

Question

You decide to research further this seemingly contradictory guidance, hypothesizing that the true population proportion of heart and core temperature increases amidst higher ambient temperature and humidity levels is greater than 0.8% and setting the level of significance at 5% for the formal hypothesis test. You randomly sample 23 participants based on your research funding and for 45 minutes, the study participants sit in a chamber maintained at a temperature of 108 degrees Fahrenheit (i.e., 42 degrees Celsius) and a relative humidity of 70%. At the end of the 45 minutes, you record for all participants if his/her heart and core temperature increased as compared to the start of the time period. The following table comprises the data you collect.

Per Step 1 of the 5-Steps to Hypothesis Testing, choose the appropriate null and alternative hypotheses, i.e. H0 and H1, respectively, as well as the significance level, ?, pronounced as "alpha".

Please note that 0 and 1 are defined as no and yes, respectively, which is a typical coding scheme in Public Health.

Select one:

a. H1: p = 0.008, ? = 1%, H1: p > 0.008

b. H0: p < 0.008, ? = 10%, H1: p = 0.008

c. ? = 1%, H0: p > 0.008, H0: p = 0.008

d. H1: p > 0.008, ? = 5%, H0: p = 0.008

Subject Heart and Core
Temperature
Increased? 1 0 2 0 3 0 4 0 5 0 6 0 7 1 8 1 9 0 10 1 11 0 12 0 13 0 14 0 15 0 16 0 17 0 18 0 19 0 20 0 21 0 22 0 23 0

Explanation / Answer

The correct hypotheses are as follows:

H0: p = 0.008

H1: p > 0.008

? = 5%

Hope this helps !

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