document.write( "Question 861790: in a gallup poll, 1025 randomly selected adults were surveyed and 29% of them said that they used the internet for shopping at least twice a year.
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Algebra.Com's Answer #519259 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "a) for P(x ≥ 2) TI syntax is 1 – binomcdf(n, p, largest x-value).
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document.write( "P(x ≥ 2) = 1 - binomcdf(1025,.29,1)
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document.write( "b)  = 297.25 is the mean
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document.write( "ME = 
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document.write( "CI: 297.25-ME < u < 297.25 + ME\r
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document.write( "CI	z -value
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document.write( "90%	z =1.645
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document.write( "92%	z = 1.751
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document.write( "95%	z = 1.96
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document.write( "98%	z = 2.326
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document.write( "99%	z = 2.576\r
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