What is mean diamond in JMP?

JMP® will plot means diamonds (95% confidence intervals for each mean), and will generate: • The Summary of Fit. • The Analysis of Variance (Anova) table.

What does prob t mean in JMP?

2. Prob > |t| is the p-‐value for the two-‐tailed test. The null hypothesis is that means are equal (the mean difference is zero). Since the Prob > |t| is greater than 0.05, cannot reject the null hypothesis (i.e., we cannot conclude that there is a significant difference).

How do you find the p-value in JMP?

Select “Formula”, and then click on OK. This will bring up the calculator. Go to the scrollbar menu in the middle and select “probability”. To get the probability of a value less than Z, select “Normal Distribution” at the top of the scroll bar menu on the right.

What is a diamond plot?

Diamond graders draw a diagram of the inclusions in the diamond (left) to a diagram (right) to create a map of the diamond’s inclusions, called the “plot”. The plot will be used to help the diamond lab give the diamond its final grade on the clarity scale.

How do you interpret ANOVA results?

Interpret the key results for One-Way ANOVA

1. Step 1: Determine whether the differences between group means are statistically significant.
2. Step 2: Examine the group means.
3. Step 3: Compare the group means.
4. Step 4: Determine how well the model fits your data.

What does T ratio mean?

The t-value is a ratio of the difference between the mean of the two sample sets and the variation that exists within the sample sets.

What does a red p-value mean in JMP?

In JMP, a p-value between . 01 and . 05 is colored red; less than . 01 is orange; greater than . 05 is black.

What is a good diamond clarity?

For diamonds over 2 carats, a clarity grade of VS2 or higher is the safest bet for avoiding any signs of visible inclusions. In diamonds between 1 and 2 carats, clarity grades of SI1 or better will not have inclusions easily visible to the naked eye.

Is diamond clarity 13 good?

I3 clarity represents the lowest official clarity grade for a diamond. But huge differences exist between I3 graded diamonds.

How do you find the median in JMP?

You can use the Table-Summary command. Choose all the columns (of course, nominal columns will not give you medians) and choose Median from the drop down.

What is the t-test statistic and how is it interpreted?

A t-test is a statistical test that compares the means of two samples. It is used in hypothesis testing, with a null hypothesis that the difference in group means is zero and an alternate hypothesis that the difference in group means is different from zero.