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A research study was conducted to determine if a gene therapy is successful in treating color blindness in mice. From a large population of mice with color blindness, 200 were selected at random. Half of the mice were randomly assigned to receive the therapy, and the other half did not. The results showed that 
80% of the mice that received therapy had some of their ability to see color restored. Based on the design and results of the study, which of the following is an appropriate conclusion?
Choose 1 answer:
A The gene therapy is better at treating color blindness than other available treatments.
(B) The gene therapy is likely to fully restore the ability to see color for mice with color blindness.
(C) The gene therapy is likely to improve the ability to see color for mice with color blindness.
(D) The gene therapy will improve the ability to see color for humans with color blindness.

A research study was conducted to determine if a gene therapy is successful in treating color blindness in mice. From a large population of mice with color blindness, 200200 were selected at random. Half of the mice were randomly assigned to receive the therapy, and the other half did not. The results showed that 80% 80 \% of the mice that received therapy had some of their ability to see color restored. Based on the design and results of the study, which of the following is an appropriate conclusion?\newlineChoose 11 answer:\newline(A) The gene therapy is better at treating color blindness than other available treatments.\newline(B) The gene therapy is likely to fully restore the ability to see color for mice with color blindness.\newline(C) The gene therapy is likely to improve the ability to see color for mice with color blindness.\newline(D) The gene therapy will improve the ability to see color for humans with color blindness.

Full solution

Q. A research study was conducted to determine if a gene therapy is successful in treating color blindness in mice. From a large population of mice with color blindness, 200200 were selected at random. Half of the mice were randomly assigned to receive the therapy, and the other half did not. The results showed that 80% 80 \% of the mice that received therapy had some of their ability to see color restored. Based on the design and results of the study, which of the following is an appropriate conclusion?\newlineChoose 11 answer:\newline(A) The gene therapy is better at treating color blindness than other available treatments.\newline(B) The gene therapy is likely to fully restore the ability to see color for mice with color blindness.\newline(C) The gene therapy is likely to improve the ability to see color for mice with color blindness.\newline(D) The gene therapy will improve the ability to see color for humans with color blindness.
  1. Calculate treated mice: Half of the 200200 mice were treated, so 200÷2=100200 \div 2 = 100 mice received the therapy.
  2. Calculate mice with improved color vision: 80%80\% of the treated mice showed improvement, so 80%80\% of 100=0.80×100=80100 = 0.80 \times 100 = 80 mice had their ability to see color restored.
  3. Conclusion based on results: Based on the results, we can conclude that the gene therapy is likely to improve the ability to see color for mice with color blindness, which corresponds to option CC.

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