Unformatted text preview: s for Two Dependent Populations Standard Error of the Sample Means
How does one calculate the standard error of the sample
means? Choose the correct answer below:
A. Divide the population standard deviation by the
sample size
B. Divide the square root of the sample size by the
population standard deviation.
C. Multiply the population standard deviation by the
square root of the sample size.
D. Divide the population standard deviation by the
square root of the sample size. D. Conﬁdence Intervals and Hypothesis Testing for Population Hypothesis Testing for Population Means Hypothesis Testing for One Population Mean
Comparing Two Means for Two Independent Populations
Comparing Two Means for Two Dependent Populations The mean of the sampling distribution of the
sample mean is approximately equal to
Choose the correct answer below:
A. The population standard deviation divided by the
square root of the sample size
B. The sample standard deviation
C. The population standard deviation
D. The population mean D Conﬁdence Intervals and Hypothesis Testing for Population Hypothesis Testing for Population Means Hypothesis Testing for One Population Mean
Comparing Two Means for Two Independent Populations
Comparing Two Means for Two Dependent Populations The mean of the sampling distribution of the
sample mean is approximately equal to
Choose the correct answer below:
A. The population standard deviation divided by the
square root of the sample size
B. The sample standard deviation
C. The population standard deviation
D. The population mean D Conﬁdence Intervals and Hypothesis Testing for Population Hypothesis Testing for Population Means Hypothesis Testing for One Population Mean
Comparing Two Means for Two Independent Populations
Comparing Two Means for Two Dependent Populations Hypothesis Testing for the Means
1 2 Hypotheses: 3 cases:
H0 : µ = µ0 , Ha : µ = µ0 (twosided test)
H0 : µ = µ0 , Ha : µ > µ0 (onesided test)
H0 : µ = µ0 , Ha : µ < µ0 (onesided test)
Test Statistics
tcal = 3 ¯
x − µ0
√
S/ n where S is the standard deviation of the sample.
Alternative Hypothesis
p value =
Ha : µ = µ0
2×area above t 
pvalue:
Ha : µ < µ0
area below t
Ha : µ > µ0
area above...
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This test prep was uploaded on 03/12/2014 for the course STATS 10 taught by Professor Ioudina during the Spring '08 term at UCLA.
 Spring '08
 Ioudina

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