Mathematics · Statistical Sampling
A contractor examines a large batch of steel plates for thickness, which yields a population standard deviation of 1.8. The contractor wants the sample mean to be within a range of 0.5 of its true value with a confidence level of 95% (where z = 1.96). The required sample size would be approximately:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 130
- 240
- 350✓
- 460
Correct answer
50
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Mathematics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Statistical Sampling MCQs →Want more practice questions on Statistical Sampling?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Mathematics · Statistical Sampling