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(Note: Be sure and show a diagram of the research design. Also show all steps and calculations you made for each test followi
10.2 Researchers at a National Weather Center in the northeastern United States recorded the number of 90 degree days each ye
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Answer: Step I- Null hypothesis (Ho: Ux=9) Alternative hypothesis: (HA: ux<9) Step II- Level of significance: a=0.05 Step III-Haypothesized Step VI- Zobtained= Zobtained 3-Hhypothesized x/ Where, X: Obtained sample mean Hnypothesized. Hypothesized poStep VII-Upon seeing the table of the area lying under the normal curve corresponding to the value of z, the critical value o

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