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maths ONE MEAN A public bus company claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes.

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ONE MEAN A public bus company claims that the mean waiting time for bus number 14 during peak hours is less than 10 minutes. Karen took bus number 14 during peak hours on 18 different occasions. Her mean waiting time was 7.2 minutes with a standard deviation of 1.6 minutes. Test the claim at 0.01 level of significance. Hypothes Ho: 1S Ha: Conclusi on

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