Business StatisticsTU Board 2023
The following table shows the average life of electric bulbs manufactured by X and Y companies: Company XCompany YNo. bulbs n100100Mean life in hours13001250Standard deviation8090 Test whether there…
5The following table shows the average life of electric bulbs manufactured by X and Y companies: Company XCompany YNo. bulbs n100100Mean life in hours13001250Standard deviation8090 Test whether there is any significant difference in mean life of the electric bulbs produced by two companies at 5% level significance.
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