Statistics

Statistics solved assignment examples.

Step-by-step worked solutions for statistics homework: hypothesis tests, regression, probability, and data analysis.

StatisticsHypothesis test

Chi-Square Goodness of Fit: Are Coffee Sales Even Across Weekdays?

A worked chi-square goodness-of-fit test on daily coffee sales counts. Sets up the null, computes expected frequencies, calculates the statistic, looks up critical value, and interprets at the 5% level.

Difficulty 5/10~25 minDonated by students

StatisticsRegression analysis

Linear Regression Analysis: NFL Team Current Value vs. Operating Income

A comprehensive regression project analyzing NFL team valuations and operating income. Includes population and sample descriptive statistics, correlation analysis, 95% confidence intervals, and simple linear regression with forecasting. Compares N=32 population to n=11 random sample.

Difficulty 6/10~45 minDonated by students