Do social shoppers differ from other online consumers with respect to spending b

Question

Do social shoppers differ from other online consumers with respect to spending behavior? A study of browser-based shopping sessions reported that social shoppers, consumers who click away from social networks to retail sites or share an item on a social network, spent a mean of $128.24 on a retail site in a 30-day period compared to other online shoppers who spent a mean of $114.36. Suppose that the study consisted of 400 social shoppers and 400 other online shoppers and the standard deviation of the order value vas $42 tor social shoppers and$11 tor other online shoppers. Assume a level of significance of 0.10. Complete parts (a) through (c) below. a. Is there evidence of a difference in the variances of the order values between social shoppers and other online shoppers? Let social shoppers correspond to subscript "ss" and let other online shoppers correspond to subscript "oos." Identify the null and alternative hypotheses. Choose the correct answer below. A. H_0: mu_ss - mu_cos notequalto 0 H_1: mu_ss - mu_cos = 0 B. H_0: mu_ss - mu_cos = 0 H_1: mu_ss - mu_cos notequalto 0 C. H_0: mu_ss - mu_cos lessthanorequalto 0 H_1: mu_ss - mu_cos > 0 D. H_0: mu_ss - mu_cos > 0 H_1: mu_ss - mu_cos lessthanorequalto 0 Identify the test statistic for this test. (Round to two decimal places as needed.) Identify the p-value for this test. (Round to three decimal places as needed.)

Explanation / Answer

FOr first question, the correct answer is B.

t = 6.3939
  df = 798
  standard error of difference = 2.171

p-value is 0.000 uptil 3 decimal places

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