تم الحل ✓
categoryإحصاء
schoolبكالوريوس
event_available2026-07-15
السؤال
Transcribed Image Text:
The accompanying data table includes weights (in grams) of a simple random sample of 40 quarters made before 1964 and weights of 40 quarters made after 1964. When designing coin vending machines, the standard deviations of pre-1964
quarters and post-1964 quarters must be considered. Use the Levene-Brown-Forsythe test and a 0.05 significance level to test the claim that the weights of pre-1964 quarters and the weights of post-1964 quarters are from populations with the
same standard deviation.
Click the icon to view the data table of pre- and post-1964 quarter weights (grams).
Let the weights of pre-1964 quarters represent population 1. Let the weights of post-1964 quarters represent population 2.
What are the null and alternative hypotheses?
OA. Ho: 0² = 0
H₁:00
>
B. H₁: 0² = 022
H₁:00
C. Ho: 02² = 0²
0²=0
H₁: 0 <0
Identify the test statistic.
t=
(Round to three decimal places as needed.)
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