It is a common experience that the volatility (measured in terms of variance) of a financial market strategy is less than 0.25. Define the null and alternative hypothesis for testing your faith on...

It is a common experience that the volatility (measured in terms of
variance) of a financial market strategy is less than 0.25. Define the null and
alternative hypothesis for testing your faith on this strategy. Perform a test at
1% level of significance to check the precision of a good undergoing this
strategy. Following are the prices (in rupees) of a particular good:
2.9, 3.1, 3.2, 2.8, 2.7, 3.4, 2.6, 3.0, 3.3, 2.9, 2.8, 3.5