program that claims to improve scores on the quantitative reasoning portion of the Graduate Record Examination (GRE). The participants take a mock GRE test before the program begins and again at the end to measure their improvement. The mean number of points improved was x=5. Assume the standard deviation is o=42 and let u be the population mean number of points improved. To determine whether the program is effective, a test is made of the hypotheses Ho: 0 versus H₂ μ>0, 1 Compute the P-value. A) 0.2047 B) 0.1024 C) 0.0512 D) 0.8248
program that claims to improve scores on the quantitative reasoning portion of the Graduate Record Examination (GRE). The participants take a mock GRE test before the program begins and again at the end to measure their improvement. The mean number of points improved was x=5. Assume the standard deviation is o=42 and let u be the population mean number of points improved. To determine whether the program is effective, a test is made of the hypotheses Ho: 0 versus H₂ μ>0, 1 Compute the P-value. A) 0.2047 B) 0.1024 C) 0.0512 D) 0.8248
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B3.
Transcribed Image Text:students enroll in a program that claims to improve scores on the
quantitative reasoning portion of the Graduate Record Examination (GRE). The
participants take a mock GRE test before the program begins and again at the end to
measure their improvement.
The mean number of points improved was x-5. Assume the standard deviation is
a=42 and let u be the population mean number of points improved. To determine
whether the program is effective, a test is made of the hypotheses Ho: 0 versus
H₁ μ>0.
Compute the P-value.
A) 0.2047
B) 0.1024
C) 0.0512
D) 0.8248
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