Hypothesis on static electricity by Rosio Stone - issuu
Electric energy consumption is the form of energy consumption that uses electric energy
Science Fair Projects - Measuring static electricity
Electricity is good, and access to electric power is central to human development. There is simply no better indicator of a country’s level of development than its per capita use of electricity. The current push in some parts of the world to raise the price of electricity to decrease consumption stands at great odds with experience—higher prices discourage usage.
1. The Alternative Hypothesis (Hα), or the hypothesis that is being proposed:
Ha: mean of Group 1 – mean of Group 2 > 0
“High Electricity Consumers have a higher HDI than Low Electricity Consumers”
Electric energy consumption - Wikipedia
My hypothesis should be partially rejected because only the metal allowed the current to pass through and light up the bulb. PURPOSE Electricity can hurt people, and things that use electricity will not work if the electricity does not stay in the wires.
2. The Null Hypothesis (Ho), or simply the negation of Ha:
Ho: mean of Group 1 – mean of Group 2 ≤ 0
“High Electricity Consumers do not have a higher mean HDI than Low Electricity Consumers”
Electricity data are from IEA/OECD 2008 (retrieved on April 2011)
We choose a Two-Sample T-Test because it is a hypothesis test that answers questions about two means when the data collected are from two independent random samples, each from an underlying normally distributed population. A non-pooled variance is used because the standard deviation of Group 2 is more than double the standard deviation of Group 1 (0.135 vs. 0.0658). The amount of evidence required to accept that High Electricity Consumers have a higher HDI than Low Electricity Consumers is known as the “significance level,” or critical p-value. If the obtained p-value, denoted by α, is below .05, then the null hypothesis can be rejected. But, to be 99% certain there is a relationship between high electricity use and HDI we will test at α = 0.01. The Minitab output for the Two-Sample T-Test is as follows:
Because the p-value is 0.000, the null hypothesis (Ho) can be rejected and the alternative hypothesis (Ha) can be accepted, even at the highly significant level of α = 0.01. There is sufficient evidence to conclude that those countries that use at least 2,000 kWh per capita a year (High Electricity Consumers) have a significantly higher HDI than those countries that do not (Low Electricity Consumers).
This article summarizes the electricity in the air
mwvsciencefair - Static Electricity
Easy Static Electricity science projects - Light a light bulb using a balloon, bend a stream of water, and more.
Electricity ?? - Poupe dinheiro aqui!
Hypothesis - Wikipedia
Static Electricity - Science Projects
A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon
Wind Energy Hypothesis Free Essays - StudyMode
The current did not flow through any of the materials except the metal. I think I would have a different result if I used a bigger battery or electricity from the wires coming into the house. CONCLUSION My hypothesis should be partially rejected.
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