In a study of cell phone usage and brain hemispheric

Last updated: 4/15/2024

In a study of cell phone usage and brain hemispheric dominance an Internet sur was e mailed to 6968 subjects randomly selected from an online group involved ears There were 1333 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 A Ho p 0 2 H p 0 2 C Ho p 0 2 H p 0 2 E Ho p 0 2 H p 0 2 The test statistic is z Round to two decimal places as needed B Ho p 0 2 H p 0 2 D Ho p 0 2 H p 0 2 OF Ho p 0 2 H p 0 2