The average cost of tuition, room and board at community
colleges is reported to be $11,500 per year, but a financial
administrator believes that the average cost is higher. A study
conducted using 150 community colleges showed that the average cost
per year is $12,000 with a standard deviation of $1,200. Let α =
What are the null and alternative hypotheses for this study?
Here using give information we say that the hypothesis for this study is
We denot null hypothesis by H0 and alternative hypothesis by H1
Therefore hypothesis is
H0: average cost of tuition, room and board at community colleges is equal to $11,500 per year.
H1 : average cost of tuition, room and board at community colleges is not equal to $11,500 per year
H0 : mu = 11500
H1 : mu 11500
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