A recent survey indicated that the average amount spent for breakfast by business managers was $7.58 with a standard deviation of $0.42. It was felt that breakfasts on the West Coast were higher than $7.58. A sample of 81 business managers on the West Coast had an average breakfast cost of $7.65. Find the P-value for the test. O 0.0668 O 0.1325 O 0.4332 O 0.2734

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A:

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A: Given: The figure,

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A: Solution by using Gram-Schmidt process as follows :

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A:

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A: