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Voters sampled said they planned to vote for the republican candidate for president. Using the 0.95 degree of confidence, what is the interval estimate for the population proportion (to the nearest tenth of a percent)?
It could not do anything with the airport and suffer a loss of revenue. The current value of raised revenue from a new airport is in question.
Give null and alternative hypotheses for this test in symbolic form.
Using the data file below, construct a histogram and a frequency polygon. Describe the shape of this distribution.
Calculate the probability of a value between 75.0 and 90.Calculate the probability of a value of 75.0 and less.
Find out z values for 29 and 34 hours. What percent of garages take between 32 hours and 34 hours to erect?
Compare the two forecasts computed in (a) and (b), using MAD. Which one should the dealer use for January of the next year?
What is the probability that the first card dealt is an ace of spade?
For all questions, clearly explain/show your answers. For the Analysis section, justify your answers with the appropriate graphs, statistics, equations, etc.
A game involving a pair of dice pays out $4 with probability 16/36, costs you $2 with probability 14/36, and costs you $6 with probability 6/36.
A population whose shape is unknown has a median of 75. You selected a sample of 40. The standard deviation of the median is 5. Calculate the probability that the median of the sample or average medians is:
Assuming that these are a random sample of all publicly traded companies, construct a 95% confidence interval for the overall noncompliance proportion.
Compute the sample variance and sample standard deviation as a measure of volatility of monthly total return for Chevron (to 2 decimals): Sample variance and Sample standard deviation.
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