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Present a hypothesis, gather and analyze data to test the hypotheses, and draw conclusions. Guidelines are: Your report must consist of a minimum of 3 typewritten, double-spaced pages not counting tables or charts. Here are some ideas for completing your project:1. Describe, briefly, your observational study or experiment and state your hypotheses. What do you think is the correlation of the variables and why.2. Select a well-designed sample of at least 30 units. (Describe the population to be studied and the sampling frame). Two variables should be measured with a potential for correlation; if you measure more than two variables, you must correlate two at a time. Pay particular attention for any lurking variables. If you are doing an experiment make sure there is a control group.3.Care must be taken in the collection of the data. Avoid sampling and non-sampling errors. If working with subjects (people, that is), be careful with the wording of your questions. If you are using secondary data, don't forget to document the sources.4.Give descriptive statistics for each single variable. At a minimum you should include the mean, median, mode, standard deviation, and five-number summary. A frequency table as well as a histogram should be included for each numerical variable.5.Correlation analysis should include a scatterplot and the line of best fit (linear regression). Give the correlation coefficient as well as .6.Draw your conclusions or inferences. Explain the strength of the association. Be careful not to conclude more than your correlation analysis allows; that is, do not make any statements not supported by your data. How confident are you about your inferences?
What would be your best point estimate for average Sales in weeks for which Newspaper advertising were $1 million? What would be an appropriate interval estimate for this?
Setermine the probability that a specific driver had exactly two violations?
If 100 stolen cars are randomly selected, what is the mean and standard deviation of the number of cars recovered after being stolen?
The guard agrees, and comes back later and tells A that he gave the pardon message to B. What are A's chances of being executed, given this information?
If a male passenger is randomly selected, find the probability that he can fit through the doorway withouth bending.
Given this Analysis of Variance information for three treatments each with six observations.with SST =1116, SSE=1068, SSTotal =2184. What is the mean square for treatments?
Then turn up cards from the top until the first ace appears. What is the expected value of the number of cards required to produce the first ace?
The fill volume of cans produced by a certain machine is normally distributed with mean 12 oz and standard deviation .03 oz. [4] a. What proportion of cans contain less than 12 oz?
Is it reasonable to conclude that this set of n = 16 people is not a representative sample of registered voters?
A random sample of 43 light bulbs has a mean life of 677 hours with a standard deviation of 90 hours. Do you have enough evidence to reject the manufacturer's claim?
The manager wants to adjust the mean to reduce the reject rate. Compute the probability of underfilling for several values of the mean fill.
Provide one example in the accounting department that you can apply a contingency table to. Briefly explain how a contingency table can be useful.
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