Average collect cost of tuition fee for all private institutions last year was P36,400. A random sample of costs this year for 45 institutions of higher learning indicated that the sample mean was P37,900 and a sample standard deviation was P5,600. At the 0.10 level of significance, is there sufficient evidence to conclude that the cost has increased?

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Average collect cost of tuition fee for all private institutions last year was P36,400.
A random sample of costs this year for 45 institutions of higher learning indicated
that the sample mean was P37,900 and a sample standard deviation was P5,600.
At the 0.10 level of significance, is there sufficient evidence to conclude that the
cost has increased?

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