Use the guidelines to evaluate the study. Discuss flaws that you see in the study. An acupuncturist notes that after a month of acupuncture 80% of her patients who had been suffering from depression are feeling better. The acupuncturist determines the level of depression by interviewing the patients at the beginning of the month and at the end of the month. She concludes that acupuncture has an 80% success rate in relieving depression.
What will be an ideal response?
The study was observational. It should have been a controlled experiment with a placebo group and a treatment group. Also because the acupuncturist could easily influence results by how she questions, the experiment should have been double-blind, the interviewer should not have known whether the patient was in the treatment group or the placebo group.
Also the sample is probably too small.
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A. 
B. 49z4
C. -49z4
D. - 
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A. (5x - 9)(5x + 8) B. 5(x - 9)(x - 8) C. (5x - 9)(x - 8) D. (5x + 8)(x - 9)
Solve the problem.A monument is to have the shape of an isosceles triangle sitting atop a rectangle.The base of the triangle and width of the rectangle are equal. The other two sides of the triangle are 3 ft. more than the base. The length of the rectangle is twice the width. If the perimeter of the monument is 
, find the value of the measurement requested in the drawing (the length of one of the two equal sides of the triangle). 
A. 22 ft. B. 42 ft. C. 24 ft. D. 20 ft.
Solve the problem.Sonya takes a job that pays $3000 the first year and a raise of $600 per year. What will her salary be for the 15th year?
A. $11,400 B. $8400 C. $12,000 D. None of the above