Answer questions using ai.txt dataset. It was the calving interval (CI) from cows from many dairy farms. The “lact” was lactation of dairy cow.
Before answer the following questions. YOU HAVE TO USE DATA THAT CI IS GREATER THAN 300 DAYS AND LESSER THAN 1000 DAY.
Therefore, you have to manipulate your data first !!!!
When you done, the data will be called “manipulated data set” in the following questions.
1. Create histogram for ci from manipulated data set
2. Create box plot for ci from all manipulated data set and interpret the plot
3. Create histogram for ci for cow lactation =2 and cow lactation = 4
4. Create boxplot for ci for cow lactation =1 and cow lactation = 2and interpret the plot
5. Calculate mean, standard deviation, standard error, variance, median and mode for ci from manipulated data set
6. Calculate mean, standard deviation, standard error, variance, median and mode for ci from manipulated data setfor cow lactation=1 and cow lactation=2.
7. Compare the different in calving interval between cow lactation=1 and cow lactation=2
7.1 set research question
7.2 set statistical hypothesis
7.3 do statistics test
7.4 check for all assumption of such statistics test
7.5 Interpret and conclude the result
7.6 If assumptions are not met, provide your suggestion