Question

Asked Jun 25, 2019

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Suppose *x* has a distribution with μ = 18 and σ = 10.

(a) If a random sample of size *n* = 37 is drawn, find μ_{x}, σ_{ x} and *P*(18 ≤ x ≤ 20). (Round σ_{x} to two decimal places and the probability to four decimal places.)

(b) If a random sample of size*n* = 68 is drawn, find μ_{x}, σ_{ x} and *P*(18 ≤ x ≤ 20). (Round σ_{ x} to two decimal places and the probability to four decimal places.)

μ_{x} = |

σ_{ x} = |

P(18 ≤ x ≤ 20) = |

(b) If a random sample of size

μ_{x} = |

σ_{ x} = |

P(18 ≤ x ≤ 20) = |

Step 1

In this question, it has been given that X follows a distribution with mean 18 and standard deviation 10.

Step 2

Part a)

n = 37

Now, Probability *P* (18 ≤&nbs...

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