It seems people’s faith in science may associate with their attitude towards investment on space exploration program. Here we investigated whether people having low confidence in scientific community present more negative attitude to space exploration program.

This report includes what is SEM and why, SEM key techniques, SEM key steps, how to conduct SEM in R etc.

This report provides an introduction to HLM (e.g., its definition, purpose, advantages, mathematical theory, equations, conditions underlying HLM) as well as how to conduct HLM in R.

This Slidify is used to explain how to use my Shiny App which provided a user inferface and could interact with user to calculate their BMI and predict their body fat.

In this project, our goal is to predict the manner in which people did exercise. The model is built using random forest.

In this report I aim to investigate "Is an automatic or manual transmission better for MPG" and to quantify the MPG difference between automatic and manual transmissions.

In this project we will analyze the ToothGrowth data in the R datasets package. We will first perform some basic exploratory data analyses and then perform some relevant confidence intervals and/or tests.

In this project we will investigate the exponential distribution and compare it with the Central Limit Theorem. Set lambda = 0.2 for all of the simulations. We will investigate the distribution of averages of 40 exponentials, and do such simulation a thousand times.

The basic goal of this assignment is to explore the NOAA Storm Database and answer some basic questions about severe weather events.