(One-Sample t-Test) Refer to Example 10.3, in which the average weight of diamonds using a new process was compared to an average weight of .5 karat.

1. Select stat ➤ EDIT and enter the six recoded weights—.46, .61, .52, .48, .57, .54—

in list L1. Use stat ➤ TESTS ➤ 2:TTest, select Data in the “Inpt:” line, and type

.5 for the hypothesized value m0. Make sure that list L1 is selected and change the alternative hypothesis to m.m0. When you move the cursor to Calculate and press enter, the results will appear, shown on the screen in Figure 10.29(a). With t51.316 and p-value50.123, the results are not significant. Similar commands will allow you to calculate a (12a)100% two-sided confidence interval using stat ➤ TESTS

➤ 8:TInterval, shown in Figure 10.29(b).

Transcribed Image Text:

NORMAL FLOAT AUTO REAL RADIAN MP 0 T-Test H>0.5 t=1.315587029 p=0.1227024902 x=0.53 Sx=0.0558569602 n=6 (b) NORMAL FLOAT AUTO REAL RADIAN MP TInterval (0.47138.0.58862) x=0.53 Sx=0.0558569602 n=6 - 0