CUET Mathematics - Let us suppose that two independent random samples of sizes n_1 and n_2 has been drawn from the same normal population then degree of freedom of statistic t-distribution is: | PYQs + Solutions

CUET Mathematics 2025 15 May Shift 1

Statistics & Applications

Medium

applied

$n_1 + n_2 - 1$

$n_1 + n_2 - 2$

$n_1 + n_2 + 1$

$n_1 + n_2 + 2$

✅ Correct Option: 2

Related questions:

3 June Shift 1

Consider the following hypothesis

$H_0: \mu = 315$ and $H_1: \mu \neq 315$

A sample of 60 provided a sample mean of 324.6. The standard deviation ( $\sigma$ ) is 14 and level of significance $\alpha = 0.05$ . Then the confidence interval is:

[Given: $Z_{0.5}\sqrt{\frac{14}{60}} = 3.54$ ]

16 May Shift 1

The point estimate of the population standard deviation for the random sample 5, 8, 10, 7, 10, 14 is:

30 May Shift 2

Match List-I with List-II

List-I	List-II
(A) The measurable characteristic of a population is called	(i) Sample
(B) The measurable characteristic of a sample is called	(ii) Alternative hypothesis
(C) A smaller group of a population selected to represent a population is called	(iii) Parameter
(D) The assumption made opposite to the null hypothesis is called	(iv) Statistic

Choose the correct answer from the options given below:

CUET Mathematics 2025 15 May Shift 1 PYQs

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