Getting started: mean height of a population, Height (in centimeters) of each of 10 women, Inferential statistics – Texas Instruments TI-83 PLUS User Manual

Page 384

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TI-83 Plus

Inferential Statistics and Distributions

381

Chapter 13:
Inferential Statistics and Distributions

Getting Started: Mean Height of a
Population

Getting Started is a fast-paced introduction. Read the chapter for details.

Suppose you want to estimate the mean height of a population of women given
the random sample below. Because heights among a biological population tend
to be normally distributed, a

t distribution confidence interval can be used when

estimating the mean. The 10 height values below are the first 10 of 90 values,
randomly generated from a normally distributed population with an assumed
mean of 165.1 centimeters and a standard deviation of 6.35 centimeters
(

randNorm(165.1,6.35,90

) with a seed of 789).

Height (in centimeters) of Each of 10 Women

169.43 168.33 159.55 169.97 159.79 181.42 171.17 162.04
167.15 159.53

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