created by shannon martin gracey
... and the number of degrees of freedom df is as described above for hypothesis tests. EQUIVALENCE OF METHODS Example 1: Determine whether the samples are independent or dependent. a. To test the effectiveness of Lipitor, cholesterol levels are measured in 250 subjects before and after Lipitor treatmen ...
... and the number of degrees of freedom df is as described above for hypothesis tests. EQUIVALENCE OF METHODS Example 1: Determine whether the samples are independent or dependent. a. To test the effectiveness of Lipitor, cholesterol levels are measured in 250 subjects before and after Lipitor treatmen ...
Descriptive Statistics –
... same number of observations has the same probability of being chosen • Choose first sample member randomly • Stratified random sample – Choose simple random samples from the mutually exclusive strata of a population • Cluster sample – Choose a simple random sample of groups or clusters ...
... same number of observations has the same probability of being chosen • Choose first sample member randomly • Stratified random sample – Choose simple random samples from the mutually exclusive strata of a population • Cluster sample – Choose a simple random sample of groups or clusters ...
Ch. 23 notes
... 1. A survey was conducted involving 250 families living in a city. The average amount of income tax paid per family in the sample was $3540 with a standard deviation of $1150. Establish and interpret a 99% confidence interval estimate for the taxes paid by families in this city. 2. The estimated U.S ...
... 1. A survey was conducted involving 250 families living in a city. The average amount of income tax paid per family in the sample was $3540 with a standard deviation of $1150. Establish and interpret a 99% confidence interval estimate for the taxes paid by families in this city. 2. The estimated U.S ...
mean
... apples is probably closer to the "real" average weight than the average weight of 3 apples taken from that same barrel. This is because the sample of 10 is a larger number than the sample of only 3 and better represents the whole group. If you took a sample of 99 apples out of 100 apples, the averag ...
... apples is probably closer to the "real" average weight than the average weight of 3 apples taken from that same barrel. This is because the sample of 10 is a larger number than the sample of only 3 and better represents the whole group. If you took a sample of 99 apples out of 100 apples, the averag ...
ch09
... 1. Generate a U[0, 1] distributed random number r 2. T is a random variable with a CDF FT(t) from which we would like to obtain a sequence of random numbers – Note: 0 FT(t) 1 for all values of t ...
... 1. Generate a U[0, 1] distributed random number r 2. T is a random variable with a CDF FT(t) from which we would like to obtain a sequence of random numbers – Note: 0 FT(t) 1 for all values of t ...
