A 95 % confidence interval states that the population mean is greater than 152 and less than 160. If σ = 15 and Z_0.025 = 1.96, then what sample size…
CUET UG 2025 — Mathematics Statistics & Applications
A 95 % confidence interval states that the population mean is greater than 152 and less than 160. If σ=15 and Z0.025=1.96, then what sample size was used in the study?
Held on 15 May 2025 · Verified 13 Jul 2026.
Options
- A
50
- B
48
- C
64
- D
54
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