CUET Mathematics - If a sample has 'n' observation x_1, x_2 ............. x_n with 'm' constraints on these values then degree of freedom of sample statistic is: | PYQs + Solutions

CUET Mathematics 2025 29 May Shift 2

Statistics & Applications

Medium

applied

$\frac{n - m}{2}$

$\frac{n + m}{2}$

$n + m$

$n - m$

✅ Correct Option: 4

Related questions:

3 June Shift 1

A small start-up started making wafers and distributing them to the retailers. After a week, average sales per week were found to be 150 packets. So, to increase the sales, a strategy was used to change the packaging and add a chocolate worth Rs. 5 as a free gift with the pack. After this, a sample of 17 shops was taken, which showed that sales went up with mean 165 and a standard deviation of 25. Check whether the strategy was effective @5%, level of significance ? [Given t₀.₀₅=2.12]

27 May Shift 1

Consider the following hypothesis test:

$H_0: \mu \leq 3432$

$H_1: \mu > 3432$

A sample of 96 provided a sample mean $\bar{x} = 3648$ and sample standard deviation $s=802$ then the degree of freedom of t-distribution is:

22 May Shift 2

Rajesh calculated 95% confidence level. What does he mean by that?

(A) He can be 95% confident that his sample will include the population parameter.

(B) He can be 95% confused that his sample will include the population parameter.

(D) He can be 5% confident that his sample will include the population parameter.

Choose the correct answer from the options given below:

CUET Mathematics 2025 29 May Shift 2 PYQs

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