जनसंख्या पैरामीटर परिभाषाओं का उपयोग करके सूची - I को सूची - II से सुमेलित करें, जहाँ जनसंख्या प्रसरण σ2 = 1NΣxi2 - μ2 है: सूची - I (पैरामीटर)सूची - II (σ)A. μ = 5, 1NΣxi2 = 50I. 8B. μ = 4, 1NΣxi2 = 52II. 7C. μ = 3, 1NΣxi2 = 58III. 6D. μ = 6, 1NΣxi2 = 100IV. 5 सही विकल्प का चयन कीजिए:

Which of the following statements about the null hypothesis (H0) is incorrect?

The area under the normal curve within mean ± 2σ covers approximately:

Arrange the following pairs of standard deviation (σ) and total number of samples (n) in decreasing order of their standard error (SE = σ√n): A. σ = 1.6, n = 16 B. σ = 1.5, n = 25 C. σ = 0.6, n = 36 D. σ = 1.4, n = 49 Choose the correct answer from the options given below: