[单选题]
A study was conducted to determine whether the standard deviation of monthly maintenance costs of a Pepper III aircraft is $300. A sample of 3 Pepper IIIs had a mean monthly maintenance cost of $3,025 and a standard deviation of $325. Using a 5% level of significance, which of the following is the most appropriate conclusion regarding the difference between the hypothesized value of the population variance and the sample variance?
A.The population and sample variances are significantly different.
B.The population and sample variances are not significantly different.
C.There are no tests that may be used to test variance differences in small samples.