For the data given in Exercise 6.5-4, use a t test to test H0: = 0 against H1: > 0 at the = 0.025 significance level.

1 STAT 145 Introduction to Statistics 1 Chapter 1 Data Collection Terms ormulas 1.1 Introduction to the Practice to Statistics Objectives: Definitions and process of statistics / Qualitative vs. Quantitative Statistical Process: Population: An entire group of people, things, or events that has at least one common trait. Sample: A smaller number of observations taken from a population Parameter: A measure obtained from the entire population. This is not practical. Parameters, the value related to P pulations What we want Statistics: A measure obtained from the sample. Statistics, the values pertaining to Samples