Suppose that a measurement has a mean μ and standard deviation o = 3. How large a sample size n is required so that the probability that X will be within 0.1 units of μ is at least 0.85?

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A: Sample size(n)=25 Median price=606 The number of tickets below $606 =11

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A: Here, x =21 The sample size n = 81. The absolute value of Zα/2 is 2.3263 using the Excel formula…

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Q: A survey of 52 students in grades 4 through 12 found 65% have classroom Wi-Fi access. Find the 90%…

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A: here slovin's Formula  n = N1 + Ne2   N= population  =  2070  e= error = 4% =0.04

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Q: 2.0 0.9 2.2 0.3 2.4 2.5 1.2 0.4 3.1 1.9 0.9 0.5 1.7 0.5 0.7 1.7 1.4 0.5 3.0 0.5 1.1 1.6 0.9 1.5 0.7…

A: Here since sample size (number of observations is 28) is less than 30, we will use t-distribution.

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A: Given,P(-c≤Z≤c)=0.9328

Q: Find class boundaries, midpoint, and width for the class. 2.48-6.12

A: class boundaries, midpoint, and width for the class. 2.48-6.12