A new medication is being developed to treat severe morning sickness in pregnant women. The information below was generated from a small sample size (n= 6) and shows the number of times a woman with morning sickness vomited both before and after treatment. Set up and interpret the results of a sign test at the alpha equals 0.05 level to determine if there is a difference in symptoms before and after treatment.  Preg women    before tx    after tx   difference   sign      1                      8                3       2                      10             7       3                      6               5       4                       8              10       5                      11             10       6                        8               2 A) We fail to reject H0, which states the median difference in the # of vomiting episodes in a day before and after treatment are equal because 1 is greater than the critcal value 0 for a sign test with a population of only 6 individuals. B) We fail to reject H0, which states the median difference in the number of vomiting episodes in a day before and after tratment are equal because 5 is greater than the critical value 0 for a sign test with a population of only 6 individuals. C) We reject H0 in favor of H1, which states the median difference in the number of vomiting episodes in a day before and after tx are not equal because 1 is greater than the critical value 0 for a sign test with a population of only 6 individuals. D) We reject H0 in favor of H1, which states the median difference in the # of vomiting episodes in a day before and after tx are not equal because 5 is greater than the critical value 0 for a sugn test with a population of only 6 individuals.

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A new medication is being developed to treat severe morning sickness in pregnant women. The information below was generated from a small sample size (n= 6) and shows the number of times a woman with morning sickness vomited both before and after treatment. Set up and interpret the results of a sign test at the alpha equals 0.05 level to determine if there is a difference in symptoms before and after treatment. 

Preg women    before tx    after tx   difference   sign

     1                      8                3

      2                      10             7

      3                      6               5

      4                       8              10

      5                      11             10

      6                        8               2

A) We fail to reject H0, which states the median difference in the # of vomiting episodes in a day before and after treatment are equal because 1 is greater than the critcal value 0 for a sign test with a population of only 6 individuals.

B) We fail to reject H0, which states the median difference in the number of vomiting episodes in a day before and after tratment are equal because 5 is greater than the critical value 0 for a sign test with a population of only 6 individuals.

C) We reject H0 in favor of H1, which states the median difference in the number of vomiting episodes in a day before and after tx are not equal because 1 is greater than the critical value 0 for a sign test with a population of only 6 individuals.

D) We reject H0 in favor of H1, which states the median difference in the # of vomiting episodes in a day before and after tx are not equal because 5 is greater than the critical value 0 for a sugn test with a population of only 6 individuals.

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