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Suppose that the amount (in Rand) that students spend daily on lunch at the BB is normally distributed with = 40 and 2

Suppose that the amount (in Rand) that students spend daily on lunch at the BB is normally distributed with   μ = 40 and  σ2 = 64 . If a sample of 36 students is drawn, calculate the probability that the sample mean amount spent is more than R42.

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