Industrial Age, What did people us to communicate each other?​

10. problems and applications q10 consider public policy aimed at smoking. studies indicate that the price elasticity of demand for cigarettes is about 0.2. if a pack of cigarettes currently costs $5 and the government wants to reduce smoking by 10%, it should increase the price by % . if the government permanently increases the price of cigarettes, the effect on smoking 1 year from now will be than the effect 5 years from now. studies also find that teenagers have a higher price elasticity of demand than do adults. which of the following statements are consistent with this result? check all that apply. it is legal for adults to consume alcohol, so many choose to spend their money on that good rather than cigarettes. teenagers do not have as much income as adults, so they are more price sensitive. adults are more likely to be addicted to cigaret

The occurs when someone offers an unnecessary reward beforehand in an obvious effort to control behavior.

Let the sample size of leg strengths be 7 and the sample mean and sample standard deviation be 945 watts and 48 watts, respectively. (a) is there evidence that leg strength exceeds 900 watts at significance level 0.05? find the p-value.there is , evidence that the leg strength exceeds 900 watts at ? -0.05. 0.001 < p-value 0.005 0.05 p-value < 0.10 0.10 p-value < 0.25 o 0.010 p-value 0.025 (b) compute the power of the test if the true strength is 915 watts. (c) what sample size would be required to detect a true mean of 915 watts if the power of the test should be at least 0.9? n= exact number, no tolerance