STAT 245 Lecture Notes - Lecture 49: Null Hypothesis, Test Statistic, Confidence Interval
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2p are unknown, the use of p will provide a valid sample size, although it may be slightly larger than necessary. He(cid:374)(cid:272)e, a (cid:272)o(cid:373)(cid:373)o(cid:374) sa(cid:373)ple size for the resear(cid:272)her"s test will (cid:271)e n . 9. 71 a the hypothesis to be tested is and the test statistic is. There is a difference in mean yield for the two types of spray. 1p be the proportion of cells in which rna developed normally when treated with a . 6 micrograms per millimeter concentration of actinomysin-d, and. 2p be the proportion of normal cells treated with the higher concentration of actinomysin-d. Since the observed p-value < . 0004, is must be less than. We can conclude that there is a difference in the rate of normal rna synthesis for cells exposed to the two different concentrations of actinomysin-d. 9. 73 a the hypothesis to be tested is. The test statistic is and the p-value is p.
