CUET Mathematics - If 95% confidence interval for the population mean was reported to be 140 to 150 and = 25, then size of the sample used in this study is: [Given: Z_0.025 = 1.96] | PYQs + Solutions

CUET Mathematics 2025 19 May Shift 1

Statistics & Applications

Medium

applied

120

112

✅ Correct Option: 3

Related questions:

3 June Shift 2

For the following data:

	Size	Mean	Standard deviation
Sample 1	4	40	8
Sample 2	5	50	10

The sample statistic t follows t-distribution with 'm' degrees of freedom, then m is equal to

27 May Shift 1

Consider the following hypothesis test.

$H_0: \mu \leq 12$

$H_1: \mu > 12$

If a sample of 25 is taken with sample mean 15 and a sample standard deviation of 6, then the value of t-test statistic is:

22 May Shift 1

Which one of the following statement is not correct?

CUET Mathematics 2025 19 May Shift 1 PYQs