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According to Thomson Financial, last year the majority of companies reporting profits had beaten estimates. A...

According to Thomson Financial, last year the majority of companies reporting profits had beaten estimates. A sample of 162 companies showed that 98 beat estimates, 29 matched estimates, and 35 fell short. (a) What is the point estimate of the proportion that fell short of estimates? If required, round your answer to four decimal places. pshort = .2160 (b) Determine the margin of error and provide a 95% confidence interval for the proportion that beat estimates. If required, round your answer to four decimal places. ME = .0753 (c) How large a sample is needed if the desired margin of error is 0.05? If required, round your answer to the next integer. I need your help solving C.

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on 162 Best eshmaț ej -98 n: 162 marched estimate-29 ghor35 ell shor o etfmato O. 22 62Page thot beat imate 6-2 Alco Ko.ofe 46 rom jable) 2 62 ME 0 045Date Page f上 . → (0.6049 + 0.0753) ー) | ( 0 : 5296 , o .6802 ) Gven ME-0.0S 162 2 36

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