Mathematics, 03.03.2020 20:03 niele123
In the beginning of the study, a randomly selected group of 121 students scored an average of 252 words per minute on the reading speed test. Since the sample size is larger than 30, the cognitive psychologist can assume that the sampling distribution of M
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and standard deviation 
, a sample size larger than 30 can be approximated to a normal distribution with mean 
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