Consider an experiment in which a pharmaceutical company is testing a new drug that it hopes will lower cholesterol levels. The scientists administer three treatments: a dose of the drug, a dose of a placebo, and a control group that receives neither drug nor placebo. After 24 hours, they then measured the cholesterol levels and compared the values to baseline levels measured prior to treatment. The table below shows the results of the experiment.
Treatment Chol. lower Chol. increased or the same
Drug 64 36
Placebo 51 49
Control 48 52
Determine whether there appears to be a statistically significant relationship between the treatment and changes in cholesterol level, they would conduct a χ2 analysis. When performing this analysis, which of the values below is closest to the χ2 value they would compare the calculated value to in order to determine significance at the 5% level?
Group of answer choices
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