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There are three typist working in an office. The times (in minutes) they spend for tea- break in addition to the allowed lunch tea break

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There are three typist working in an office. The times (in minutes) they spend for tea- break in addition to the allowed lunch tea break are observed and noted below: Im- Use R programming to check Whether the difference in average times that the three typist spend for a tea break be attributed to chance variation

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