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Is there really global warming? Some stat students , alarmed by the crazy summer we had in Houston, decide to check it out. The usual average high

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Is there really global warming? Some stat students , alarmed by the crazy summer we h decide to check it out. The usual average high temperature in August is 94.5. With our record string of 100 degree plus temperatures they gathered this data for the h in August 2011: 99 93 101 100 101 100 100 95 93 102 100 101 100 93 95 90 100 101 Can the students conclude that August was unusually warm? Do a hypothesis test using 0.1 more than 2.58= reject hypothesis 2 Houston just had its mayoral race and the Houston Chronicle is studying turnout in diFe districts in the city. They ±nd that the average voter turnout in District A has been 39.5 standard devia²on of 10%. In District C the average turnout has been 31% with a stand Can the Chronicle conclude that there is really a diFerence in voter turnout between the Do a hypothesis test using an alpha of .05. 2 tail 1.96 Does the 95% con±dence interval con±rm your conclusion from above?
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had in Houston, high temperatures 97 99 101 102 98 99 90 96 Average 94.5 100 101 100 102 Average 98.3 Std 3.524789062 g an alpha of .01. count 30 s N= 30 one tail Mean 100 Var 12.56410256 SE 0.647150229 erent zscore 5.904880213 5% with a SE 0.643535493 ard devia²on of 15%. e two? 0.5 District A average 39.50% 39.5 var 100 N std 10% 10 margin error 19.6 SE 2.227560396 con±dence int District C average 31% 31 std 15% 15 Var 225 margin error 29.4 SE 3.771711343 N 15.81632653 Con±dence Interval 14.4 44.4
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Question 1: Is there really global warming? Some stat students , alarmed by the crazy summer we had in Houston,
decide to check it out. The usual average high temperature in August is 94.5.
With...

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