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(Solved): A experimenter has developed a new drug designed to reduce cholesterol level. In the testing proces ...




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student submitted image, transcription available below
student submitted image, transcription available below
A experimenter has developed a new drug designed to reduce cholesterol level. In the testing process, 21 people were assigned randomly to the treatment group and received the new experimental drug. The other 23 subjects were assigned to the control group and received a standard, well-known treatment. After a month, the reduction in cholesterol level for each subject was recorded. A summary of these data is: The experimenter believe that the new drug results in greater average reduction in cholesterol level than the old drug does. Use 0.05 significance level to check that the new drug results in greater average reduction in cholesterol level than the old drug does. i) Write the Null and Alternative hypothesis for this problem? Answer: A) vs i) Write the Null and Alternative hypothesis for this problem? Answer: A) vs B) vs C) vs D) vs ii) Calculate the test statistics. Answer: A) B) C) D) iii) The -value for the test is Answer: A) between 0.02 and 0.025 . B) between 0.04 and 0.05 . C) larger than 0.05 . D) 0.025 iv) What is your conclusion? Answer: A) Since -value , null hypothesis is rejected. B) Since -value , null hypothesis is rejected. C) Since P-value<0.05, null hypothesis is not rejected. D) Since -value , null hypothesis is not rejected.


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