A Level Maths Statistics Year 2 Chapter 3: Mini test

What is the correct calculator input for X~N(50,16) and P(X>40)?

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What is the continuity correction for P(X>3)?

• P(X>4)
• P(X>3.5)
• P(X>2.5)
• P(X<3)

Which denotes the sample mean?

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Which are possible hypotheses for the mean?

• H₀: x=3 H₁: x>3
• H₀: μ=3 H₁: μ≥3
• H₀=3 H₁>3
• H₀: μ=3 H₁: μ>3

What is the correct distribution for the sample mean (sample size n)?

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