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In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6980 subjects randomly selected from an online group
In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to 6980 subjects randomly selected from an online group involved with ears. There were 1307 surveys returned. Use a 0.01 significance level to test the claim that the return rate is less than 20%. Use the P-value method and use the normal distribution as an approximation to the binomial distribution. Identify the null hypothesis and alternative hypothesis. O A. Ho : P = 0.2 OB. Ho : P = 0.2 H1: p > 0.2 H1 : p 0.2 H1: P# 0.2 H1 : p = 0.2 O E. Ho: P# 0.2 OF. Ho: p
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