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A researcher plans to ask employees whether they favor, oppose, or are indifferent about a change in the company retirement program. Formulate a hypothesis for a chi-square test and the way the variable would be created. Pretend you have administered a survey to test your hypothesis and you now have collected the data. In your post include your hypothesis, data tables and formulas necessary for the chi-square calculations. Make a decision based on the findings, and include a recommendation to the company.
A large plumbing contractor buys eight 200-foot rolls from the producer described in given Exercise. Determine the probability that no more than three of the eight rolls will be flawless.
Imagine a village in a developing country where there are competitive moneylenders. There is an exogenous probability (p) of default for every dollar lent out.
a random sample of 16 emergency reports was selected from the files of an ambulance service. the mean time computed
Make a scatterplot of the data for the female subjects. Which is the explanatory variable?
(Termination Tolerance for Transportation Problems) Consider a transportation problem with m sources and n sinks, and integer data. Show that in order for a feasible x to be optimal it is sufficient that it satisfies -CS together with some p and ..
At a significance level of 0.05, does the sample provide sufficient evidence to support your claim?
a. What annual rate of return did the investor earn? b. Use the CPI information from the previous exercise to compute the inflation rate for 2009.
From 1982 to 2003 the net sales for the J.M Smucker company increased from $157 million to $687 million compute the mean annual percent increase in net sales.
You pay $10 to play the following game of chance. There is a bag containing 12 balls: 6 are red, 3 are green, and the rest are yellow
The standard therapy used to treat a disorder cures 60% of all patients in an average of 140 visits. A health care provider considers supporting a new therapy.
Estimate the percentage of adult Internet shoppers in order to determine the maximum impact of Internet shoppers on its sales, what percentage of Internet shoppers should be used?
What is the sample size for this poll? That's a much larger sample than standard sample surveys. In spite of this, we can't trust the result to give good information about any clearly defined population. Why?
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