Grab Holdings Inc., commonly known as Grab, is a multinational ride-hailing company based in Singapore. The company

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Grab Holdings Inc., commonly known as Grab, is a multinational ride-hailing company based in Singapore.

The company believes that only 10% of women will choose not to take a Grab after 10 pm. We wish to see if this percentage is the same between 6 am to 8 am.

a) How many Grabs must be surveyed in order to estimate the proportion of women choosing not to take a Grab to within 5% with 95% confidence?

b) Suppose we want to cut the margin of error to 3%.

What is the necessary sample size?

c) What sample size would produce a margin of error of 1%?

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Business Statistics

ISBN: 9781292269313

4th Global Edition

Authors: Norean Sharpe, Richard De Veaux, Paul Velleman

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Question Posted: Sep 07, 2024 06:00 AM

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Grab Holdings Inc., commonly known as Grab, is a multinational ride-hailing company based in Singapore. The company

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Business Statistics

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