Casio STAT 2 Instrukcja Użytkownika Pobierz pdf (Strona 53)

The t-test calculation is shown below:

where

X is the mean of the sample, is the mean of the population,

s is the standard deviation of the sample, and n is the number of values in the

sample. The confidence interval can be calculated using the following formula:

The students should be familiar with the following vocabulary:

Mean Standard deviation

Degrees of freedom Confidence

T-test Z-test

Population Sample

Getting Started

For this activity you will need the Casio fx-9750G Plus graphing calculator,

measuring tapes (at least 2 meters), and a class chart with a column for height in

centimeters. You may want the students to calculate these values themselves and

then check with the calculator.

t =

X – 

s / n



X  [t • s / n ]

Activity 10: Class Height Teaching Notes (continued)

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 96 97

Brak uwag

Casio STAT 2 Instrukcja Użytkownika Strona 53