Kishore et al. state that the average mortality rate between September 20 and December 31, 2016 was 8.82 deaths per 1,000 people. They estimated that the average mortality rate during these same months in 2017 was 14.31 deaths per 1,000 people. a. Calculate the incidence rate difference for mortality, comparing 2017 data to 2016 data. Round your answer to the second decimal place. (4 points)
b. Interpret the incidence rate difference obtained in Question 4a. (4 points)

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.