12.E.045 have been shown to have beneficial effects on bones. One study The plan

Question

12.E.045 have been shown to have beneficial effects on bones. One study The plant was the bone mineral density in the femur (in grams per square centimeter). Here are the data. 0.229 0.207 0.234 0.220 0.217 0.228 0.209 0.221 0.204 0.220 0.203 0.219 0.218 0.245 0.210 0.216 0.225 0.200 0.208 0.198 0.208 0.203 0.267 0.261 0.221 0.219 0.232 0.209 0.255 Low Dose 0.214 0.220 0.211 0.233 0.219 0.233 0.226 0.228 High Dose 0.255 0.237 0.217 0.206 0.247 0.228 0.245 0.232 00116 15 Low Dose 15 High Dose 15 0.2189 02161 0.2354 0.0114 (b) Examine the all the three sample data are of Score: 1 out of 1

Explanation / Answer

d]

here sample size is equal for that is 15, when we used two t - test then df = n1 +n2 - 2 = 15 + 15 - 2 = 28.

and alpha = 0.05, df = 28

t_critical = 2.04841   (your answer)

calculate t_critical by using MS Excel command " =TINV(0.05,28) "

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