Here the question

a. Are there any statistically signicant differences in the characteristics shown among the treatments? Justify your answer. b. Consider the test for differences in age among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only). 0. Consider the test for differences in insurance coverage among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only). d. Consider the test for differences in disease stage among treatments. Write the hypotheses and the formula of the test statistic used (No computations required formula only). The following table was presented in an article summarizing a study to compare a new drug to a standard drug and to a placebo. Characteristic* New Drug Standard Drug Placebo p Age, years 45.2 (4.8) 44.9 (5.1) 42.8 (4.3) 0.5746 % Female 51% 55% 57% 0.1635 Annual Income, $000s 59.5 (14.3) 63.8 (16.9) 58.2 (13.6) 0.4635 % with Insurance 87% 65% 182% 0.0352 Disease Stage 0.0261 Stage I 35% 18% 33% Stage II 42% 37% 47% Stage III 123% 51% 20% *Table entries and Mean (SD) or %