John and his friend were recently having a heated discussion about the number of men living in the western parish who possibly cared for children that are not biologically theirs during2019. Assume that a survey of the parish’s population revealed that the average number of cases and the standard deviation were 5,000 and 6000 in 2019, respectively. John and his friend do not believe that the population average is correct. Assume that a survey based on a sample of 800 people was conducted and found that the average number of cases in the western parishwas10,000 over the 12 months. Conduct a hypothesis test using a 5%significance level to determine if the average number of cases is higher based on the sample data.

Q&A Education