A new medication is being developed to treat severe nausea and vomiting among chemotherapy patients. The info below was generated from a small sample size (n= 11) and shows the number of times a chemo pt vomited both before and after treatment due to the side effects of chemo. 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. Chemo pt before tx after tx difference sign 1 9 3 2 12 5 3 14 7 4 9 4 5 8 2 6 11 3 7 15 7 8 12 8 9 7 8 10 9 5 11 8 7 A) We fail to reject H0, which states the median difference in the number of vomiting episodes in a day before and after tx are equal because 1 is less or equal to critical value 1 for a sign test with a population of only 11 individuals B) We fail to reject H0, which states the median difference in the number of vomiting episodes in a day before and after treatment are equal because 10 is greater or equal to the critical value 1 for a sign test with a population of only 11 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 treatment are not equal because 1 is less or equal to the critical value 1 for a sign test with a population of only 11 individuals D) We reject H0 in favor of H1, which states the median difference in the number of vomiting episodes in a day before and after treatment are not equal because 10 is greater or equal to the critical value 1 for a sign test with a population of only 11 individuals
A new medication is being developed to treat severe nausea and vomiting among chemotherapy patients. The info below was generated from a small
Chemo pt before tx after tx difference sign
1 9 3
2 12 5
3 14 7
4 9 4
5 8 2
6 11 3
7 15 7
8 12 8
9 7 8
10 9 5
11 8 7
A) We fail to reject H0, which states the
B) We fail to reject H0, which states the median difference in the number of vomiting episodes in a day before and after treatment are equal because 10 is greater or equal to the critical value 1 for a sign test with a population of only 11 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 treatment are not equal because 1 is less or equal to the critical value 1 for a sign test with a population of only 11 individuals
D) We reject H0 in favor of H1, which states the median difference in the number of vomiting episodes in a day before and after treatment are not equal because 10 is greater or equal to the critical value 1 for a sign test with a population of only 11 individuals
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