Review
... The sampling distribution of the sample mean is 1) The standard normal distribution with mean 0 and standard deviation 1 2) The distribution of sample means 3) The histogram showing the relationship between the samples and the means 4) The method used to construct simple random samples ...
... The sampling distribution of the sample mean is 1) The standard normal distribution with mean 0 and standard deviation 1 2) The distribution of sample means 3) The histogram showing the relationship between the samples and the means 4) The method used to construct simple random samples ...
File
... a. If two of the 50 subjects who used drugs are randomly selected with replacement, find the probability that the first had a positive result and the second had a negative result. ...
... a. If two of the 50 subjects who used drugs are randomly selected with replacement, find the probability that the first had a positive result and the second had a negative result. ...
Section 10.1 ~ t Distribution for Inferences about a Mean
... When a t distribution is used to conduct a hypothesis test, the t value plays the role that the z-score played when we worked with the normal distribution Recall, that we determined statistical significance by comparing the z-score to critical values or by using the z-score to determine the Pvalue ...
... When a t distribution is used to conduct a hypothesis test, the t value plays the role that the z-score played when we worked with the normal distribution Recall, that we determined statistical significance by comparing the z-score to critical values or by using the z-score to determine the Pvalue ...