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A professor of statistics claimed that the average amount of money a typical college
student spends per day during social distancing at home is over $70. Based upon
previous research, the population standard deviation is estimated to be $17.32. The
professor surveys 35 students and finds that the mean spending is $67.57. Is there
evidence that the average amount spent by students is less than $70? State hypotheses,
calculated value, critical value at a = 0.1
the professor wants to know wether the sample mean 67.57 is high enough.
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