The average French person drinks approximately 30 gallons of soda a year. Some French legislators are recommending instituting a sales tax on soda to raise revenue and fight obesity. Will a sales tax reduce the mean amount of soda consumption? Suppose that a sales tax on soda will be added in a random sample of communities to measure the impact on soda consumption. State the null and alternative hypothese Suppose sample results give a p-value of 0.2. State your general conclusion (reject the null or fail to reject the null). Then state your conclusion based on the context of this situation.
Continuous Probability Distributions
Probability distributions are of two types, which are continuous probability distributions and discrete probability distributions. A continuous probability distribution contains an infinite number of values. For example, if time is infinite: you could count from 0 to a trillion seconds, billion seconds, so on indefinitely. A discrete probability distribution consists of only a countable set of possible values.
Normal Distribution
Suppose we had to design a bathroom weighing scale, how would we decide what should be the range of the weighing machine? Would we take the highest recorded human weight in history and use that as the upper limit for our weighing scale? This may not be a great idea as the sensitivity of the scale would get reduced if the range is too large. At the same time, if we keep the upper limit too low, it may not be usable for a large percentage of the population!
- The average French person drinks approximately 30 gallons of soda a year. Some French legislators are recommending instituting a sales tax on soda to raise revenue and fight obesity. Will a sales tax reduce the mean amount of soda consumption? Suppose that a sales tax on soda will be added in a random sample of communities to measure the impact on soda consumption.
- State the null and alternative hypothese
- Suppose sample results give a p-value of 0.2. State your general conclusion (reject the null or fail to reject the null). Then state your conclusion based on the context of this situation.
- Now suppose sample results give a p-value of 0.018. State your general conclusion (reject the null or fail to reject the null). Then state your conclusion based on the context of this situation.
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