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A professor conducts a longitudinal study to find if undergrads (vs. professional graduates) spend different amounts of time(hr) reading their texts per day. Her result
A professor conducts a longitudinal study to find if undergrads (vs. professional graduates) spend different amounts of time(hr) reading their texts per day. Her result is shown below:
Summary statistics: Column Mean Std. Dev. Std. Err. Undergraduate 5 4.3 2.018663 0.9027735 Graduate 2.4 1.5572412 0.6964194 Hypothesis test results: 41: mean of undergraduate 42: mean of graduate 41 - /2 : mean difference Ho: u1 - 12 = 0 HA: #1 - u2 # 0 (with pooled variances) Difference Sample Mean Std. Err. DF T Stat P-value 1.9 1.1401755 8 1.6664102 0.1342Summary statistics: Column Mean Std. Dev. Std. Err. Undergraduate 5 4.3 2.018663 0.9027735 Graduate 2.4 1.5572412 0.6964194 Hypothesis test results: 41: mean of undergraduate 42: mean of graduate 41 - /2 : mean difference Ho: u1 - 12 = 0 HA: #1 - u2 # 0 (with pooled variances) Difference Sample Mean Std. Err. DF T Stat P-value 1.9 1.1401755 8 1.6664102 0.1342
A professor conducts a longitudinal study to find if undergrads (vs. professional graduates) spend different amounts of time(hr) reading their texts per day. Her result is shown below: |
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Elementary Statistics
Authors: Mario F. Triola
12th Edition
0321836960, 978-0321836960
