Question 1

Which statistics tests can the solver run?

Accepted Answer

One and two sample z-tests and t-tests, paired t-tests, proportion tests, chi-square goodness of fit and independence, one-way ANOVA, and regression inference. It states the hypotheses, the test statistic, the p-value, and the decision in context.

Question 2

Does it show the formula or just the number?

Accepted Answer

It writes the formula, substitutes each value, and evaluates. That matters for statistics homework, where instructors usually award most of the points for the setup and the conclusion sentence rather than for the decimal.

Question 3

Can it draw distribution curves and shade the rejection region?

Accepted Answer

Yes. Normal and t curves with the shaded tail, scatterplots with a fitted line, and residual plots are drawn on the page in the same handwritten style as the algebra.

Question 4

Will it interpret confidence intervals in plain language?

Accepted Answer

Yes. Every interval comes with the sentence your instructor is looking for: what the interval says about the parameter, at what confidence level, for what population. Explain mode expands on why the interpretation is worded that way.

Question 5

Can it help with probability problems, not just inference?

Accepted Answer

Yes. Conditional probability, Bayes theorem, combinatorics, discrete and continuous random variables, expected value and variance, binomial, Poisson, normal, and exponential distributions are all in scope.

Question 6

How many statistics problems can I solve for free?

Accepted Answer

Three handwritten generations per month, resetting monthly, on the free plan. Explanations and practice problems are unlimited. Paid plans start at a $2.99 Weekly Pass or $7 a month.