A medical researcher experimented with the effects of calcium intake on the healing time of broken bones. Peop
similar broken bone injuries were divided randomly into two groups, one of which received a calcium supplemer
which received a placebo. The data showed that there was no significant difference in healing times between the
the researcher concluded that calcium intake has no effect on bone healing time. Why is the conclusion of the re
justified?
The researcher did not use a control group.
The bone injuries in different people cannot be compared.
The overall calcium intake of the two groups was not considered.
The data can only give a statistical probability, so no conclusion can be made.

Which statement is the most accurate summary of this excerpt from leo tolstoy’s the death of ivan ilyich?

Do eilinor and marianne each end up with the best husband possible? give reasons for your answer.

Read the passage first of all if someone says your dream is impossible, they’re wrong. you can’t prove that something is impossible-all you know is that[it] hasn’t been done yet. people said no one could scale mount everest but in 1953, sir edmund hilary and tenzing norway gazed down upon the world from it’s summit. people said that man could not fly, but in 1903, orville and wilbur wright made the first sustained powered flight in a heavier-than-air machine. people said, “okay, we admit that someone could climb mount everest, and we admit that man has learned to fly, but no one will ever, ever walk on the face of the moon.” if we can send three men a quarter of a million miles away and bring them home safely, is there any great task we cannot accomplish? which identifies the textual evidence that best supports the claim: the authors purpose is to persuade? a: the author shares historical information about the wright brothers. b: the author states that men have walked the moon. c: the author states that others who think your dreams are impossible are wrong. d: the author wants to know what tasks we cannot accomplish.