document.write( "Question 1115644: Each year, billions of dollars are spent at theme parks owned by Disney, Universal Studios, Seaworld, Busch Gardens, and others. A survey of 1233 people who took trips revealed that 111 of them included a visit to a theme park (based on the Travel Industry Association of America). Based on those survey results, management consultant Laura Croft claims that less than 10% of trips include a theme park visit. Use a 0.05 significance level to test her claim. \n" ); document.write( "
Algebra.Com's Answer #730504 by rothauserc(4718)\"\" \"About 
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10% of 1233 is 123.3 or approximately 123
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\n" ); document.write( "111/1233 = 0.09
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\n" ); document.write( "Ho: X = 0.10
\n" ); document.write( "H1: X > 0.10
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\n" ); document.write( "the sample size(1233) > 30, so we can assume a normal distribution
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\n" ); document.write( "mean = 0.10
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\n" ); document.write( "standard deviation = square root(0.10 * (1-0.10) / 1233) = 0.0085
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\n" ); document.write( "z-score of statistic = (0.09 - 0.10) / 0.0085 = −1.1765
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\n" ); document.write( "the probability associated with this z-score is approximately 0.12
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\n" ); document.write( "Since this is greater than the significance level of 0.05, we accept the null hypothesis.
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\n" ); document.write( "We accept Laura Croft's statement
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\n" ); document.write( "Note Ho implies the < sign
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