Based on historical data, your manager believes that 34% of the company's orders come from first-time customers. A random sample of 117 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is less than 0.31? Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.

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A: Given graph is a straight line so

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A: Given Information :  Let U be the universal set , where : U = {a,b,c,d,e,f,g,h,i,j}   Let sets A , B…

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Q: I don't understand the writing like that. Can someone write the solution neatly? Thank you!

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A: Since you have asked multiple questions in a single request, we will be answering only the first…

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Q: Can you explan it better?  I do not understand.

A: A repeated - measures and an independent - measures study both produce a t statistic with df=20. How…