The average expenditure per student (based on average daily attendance) for a certain school year was $10,337 with a population standard deviation of $1560. A survey for the next school year of 150 randomly selected students resulted in a sample mean of $10,798. Do these results indicate that the average expenditure has changed? Choose your own level of significance.
The question belongs to Statistics and it is about calculating the change in the average expenditure on students of a school in two years. The change in average expenditure needs to be noted.
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