(18.47) There is evidence that cytotoxic T lymphocytes ( T cells) participate in controlling tumor growth and that they can be harnessed to use the body's immune system to treat cancer. One study investi-gated the use of a T cell- engaging antibody, blinatumomab, to recruit T cells to control tumor growth. The data below are T cell counts ( 1000 per microliter) at baseline ( beginning of the study) and after 20 days on blinatumomab for 6 subjects in the study. The difference ( after 20 days minus baseline) is the response variable.

Baseline 0.04 0.02 0 0.02 0.38 0.34
After 20 days 0.26 0.45 1.28 0.23 1.2 0.42
Difference 0.22 0.43 1.28 0.21 0.82 0.08

Give a 95% confidence interval for the mean difference in T cell counts ( after 20 days minus baseline)

(Give your answer to four decimal places.)

The confidence interval is from ___ to____

Question

(18.47) There is evidence that cytotoxic T lymphocytes ( T cells) participate in controlling tumor growth and that they can be harnessed to use the body's immune system to treat cancer. One study investi-gated the use of a T cell- engaging antibody, blinatumomab, to recruit T cells to control tumor growth. The data below are T cell counts ( 1000 per microliter) at baseline ( beginning of the study) and after 20 days on blinatumomab for 6 subjects in the study. The difference ( after 20 days minus baseline) is the response variable.

Baseline 	        0.04  	0.02  	0  	0.02  	0.38  	0.34 
After 20 days 	0.26  	0.45       1.28  	0.23  	1.2  	        0.42 
Difference 	0.22  	0.43       1.28  	0.21  	0.82  	0.08

Give a 95% confidence interval for the mean difference in T cell counts ( after 20 days minus baseline)

(Give your answer to four decimal places.)

The confidence interval is from ___ to____