A student suspected the average cost of a Saturday night date was now greater than $30.  To test her hypothesis, she randomly selected 16 men from the residence hall and asked how much they spent on a date last Saturday night.  She found that in her sample, the average amount spent $32.75, the standard deviation was $5.25, and that the histogram of sample was unimodal and roughly symmetric. At , is there enough evidence to support her claim.   What type of test would she use?

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A: The summary of the statistics is, The type of test is left tailed test

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A:

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