Question

section 4.2 homework
score: 2/5 answered: 2/5
question 3
an incubation period is a time between when you contract a virus and when your symptoms start. by surveying randomly selected local hospitals, a researcher was able to obtain a sample of incubation periods of twenty - eight patients and the sample average was found to be eight and sixty - six hundredths days. assume that the population standard deviation is one and three tenths days. you may also assume that the sample is from a normal population.
determine the size of the sample in the problem above:
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Explanation:

Step1: Identify sample - size information

The problem states "By surveying randomly selected local hospitals, a researcher was able to obtain a sample of incubation periods of twenty - eight patients".

Step2: Determine the sample size

The number of patients in the sample is the sample size. Here, the number is 28.

Answer:

28