Exampie 13.15) Five coins are tossed 3,200 times and the number of heads appearing each time is noted. At the end, the following results were obtained: Number of heads 2 3 4 Frequencies 80 570 1100 900 500 50 Use chi-square test of goodness-of-fit to determine whether the coins are unbiased. Use 5 per cent level of significance.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
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Example 13.15) Five coins are tossed 3,200 times and the number of heads appearing each time is noted.
At the end, the following results were obtained:
Number of heads
1
2
3
4
Frequencies
80
570
1100
900
500
50
Use chi-square test of goodness-of-fit to determine whether the coins are unbiased. Use 5
level of significance.
per cent
Transcribed Image Text:Example 13.15) Five coins are tossed 3,200 times and the number of heads appearing each time is noted. At the end, the following results were obtained: Number of heads 1 2 3 4 Frequencies 80 570 1100 900 500 50 Use chi-square test of goodness-of-fit to determine whether the coins are unbiased. Use 5 level of significance. per cent
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