This post covers data reported on Twitter by Brunei media.

Task-2

Vaccination rate improved the COVID-19 infection in the country

We have simple random sample Sample1: X1,…,Xn of number of active cases of COVID-19 infections, and random sample Y1,…,Yn of vaccinations completed on the same day during the October 2021 and Sample2: X1,…,Xn of number of active cases of COVID-19 infections, and random sample Y1,…,Yn of vaccinations completed on the same day during the November 2021. Denote the population mean of active cases in one sample by μX, and the population mean of active cases in 2nd sample by μY. Denote the corresponding standard deviations by σX and σY. These population means and standard deviations are unknown. The sample sizes are n.

• Two sampled T-test :-The Independent Samples t Test or 2-sample t-test compares the means of two independent groups in order to determine whether there is statistical evidence that the associated population means are significantly different. The Independent Samples t Test is a parametric test. This test is also known as: Independent t Test.