) What is the P- value and Z score? d) Does it Reject/ Accept the null hypothesis H_0?
) What is the P- value and Z score? d) Does it Reject/ Accept the null hypothesis H_0?
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I need help with b,c, and d. Thank you!
c) What is the P- value and Z score?
d) Does it Reject/ Accept the null hypothesis H_0?
e) There is/ is not evidence to conclude that the
 alt="SAT scores: The College Board reports that in 2018, the mean score on the math SAT was 579 and the population standard deviation was o=118. A random
sample of 18 students who took the test in 2019 had a mean score of 551. Following is a dotplot of the 18 scores.
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….....
550
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Transcribed Image Text:SAT scores: The College Board reports that in 2018, the mean score on the math SAT was 579 and the population standard deviation was o=118. A random
sample of 18 students who took the test in 2019 had a mean score of 551. Following is a dotplot of the 18 scores.
350
400
450
500
….....
550
600
650
700

Transcribed Image Text:(b) Perform a hypothesis test to investigate whether the mean score in 2019 is less than the mean score in 2018. Assume the population standard deviation
is o=118. What can you conclude? Use the α=0.05 level of significance and the P-value method.
State the null and alternate hypotheses.
Ho:
H₁:
right-tailed
left-tailed
two-tailed
This hypothesis test is a (Choose one) test.
O<O
□<口
☐#0 μ
X
1=0
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