CUET Mathematics 2026 26th May Shift 2 PYQs

A company has been producing steel tubes of mean inner diameter of 3 cm. A sample of 17 tubes gives an inner diameter of 3.01 cm and a standard deviation of 0.064. Then the value of the t-test statistic is:

For the data from the simple random sample as: 5, 8, 10, 7, 18, 12

The point estimate of the population standard deviation is

A measurable characteristic of a population is called _____.