28. Sky packets guarantee 90% of their deliveries are on time. In a recent week 81 deliveries were made of which 6 were late. Sky packets Managing Director says with 95% confidence that there
has been a significant improvement in deliveries.Should Managind
Director,s statement be accepted ? (Hint: one tailed test] [a = 5%]
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Sky packets guarantee 90% of their deliveries are on time. In a recent week 81 deliveries were made of which 6 were late. Sky packets Managing Director says with 95% confidence that there
has been a significant improvement in deliveries.Should Managind
Director,s statement be accepted ? (Hint: one tailed test] [a = 5%]
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