CUET Mathematics - If a 99% confidence interval states that the population mean is greater than 100 and less than 400. Then the sample mean and margin of error respectively are: | PYQs + Solutions

CUET Mathematics 2025 30 May Shift 2

Statistics & Applications

Medium

applied

250, 150

150, 250

200, 200

200, 100

✅ Correct Option: 1

Related questions:

21 May Shift 2

Consider a random sample of 10 students having 116 cm as mean height and standard deviation as 9.798 cm. If the suggested mean height of the students population is 110 cm then the t-test statistic of the sample is:

[given $\frac{\sqrt{10}}{9.798} = 0.3227$ ]

19 May Shift 1

Consider the following hypothesis test:

$H_0: \mu = 18$

$H_1: \mu \neq 18$

If a sample of 48 provided a sample mean $\bar{x} = 17$ and a sample standard deviation $\sigma = 4.5$ , then the value of the t-test statistic is:

19 May Shift 1

If 95% confidence interval for the population mean was reported to be 140 to 150 and $\sigma = 25$ , then size of the sample used in this study is:

[Given: $Z_{0.025} = 1.96$ ]

CUET Mathematics 2025 30 May Shift 2 PYQs

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