My assumption when I look at this boxplot, Type1 or P1 has scored the highest among all and Type 5 or P5 is the lowest.
#Boxplot minitab 18 how to
I know the middle line is the median, but I am still can’t figure out how to describe this data.
They make assumptions about the characteristics in the data, but do not require a specific distribution. More robust tests with less requirements are nonparametric tests like the Mann-Whitney or Mood-Median-test. The requirements for a t-test are violated. Accordingly the p-value is smaller than 0.005. To decide which test is appropriate for the comparison between P1 and P2, take a look at the distribution of the numbersīoth graphs show only a handful of different values for P1 (sum) and P2 (sum), so you have not enough evidence to assume that these figures come from a normal distribution. One way to compare the figures could be a 2-sample t-Test, but therefore the data has to follow a normal distribution. They are similar with P2 (sum) being a little bit above P1 (sum), see attached file. To get 'P2 (sum)' use the entries in C9 and C10.įirst take a look at the data, for example with boxplots: To get these row-wise sum for P1 (C7+C8) out of Minitab:
the sum of the ratings, the mean or the median. You can use several different metrics to gather your data for P1, e. I got a little bit lost when trying to figure out which column contains what informations from your first posting, so hopefully my answer is nevertheless helpful. How do I make a comparison between P1 in group 1 and P1 in group 2 to find significant differences between G1 and G2 for each item P1 - P6? I need to compare between these items so that I can make a conclusion that group 1 are more concentrate on the activity of P1 rather than P2.Ģ. How do I accumulate/measure the responses or rate in the subitems in each item to find which item has scored the highest in certain group? I have accumulated 50 samples for each group n1=50 and n2=50ġ. There are multiple numbers of subitems in each items, which is in the likert scale of 4 rating, 1-often,2-sometime,3-seldom, 4-never First of all, I am appreciating in advance for those who read this and would like to provide an immediate assistance for my stats issue here.Įach of the group has 6 items to be compared- P1, P2,P3,P4,P5 and P6