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Among 10 people, 2 people have a pulse of 50, 3 have a pulse of 70, 4 have a pulse of 80, and 1 has a pulse of 90. If X = the pulse of 1 person picked at random from the 10, what are the mean and variance of X? (Make a probability distribution table for X and give formula and value for each)
Use the confidence intervals you computed in parts a and b to compare the mean number of dealers visited by early replacement buyers with the mean number of dealers visited by late replacement buyers.
Time Value of Money- Deli Case The answer is already given, so step by step on arriving on that answer is required Christina hopes to open a Deli in 2015.The initial investment will be $85,000. She expects that that the Deli will generate the posi..
How did the media article do at explaining the findings? Is their summary accurate or misleading? Although the article may contain statistical concepts beyond the level of this class, it will most likely be based in things that we are learning...
a. Describe the handing of the specimen and how the infectious agent, in this case a bacterial pathogen, is isolated from the sputum b. Explain techniques used to isolate bacteria from a clinical specimen using the learnSmart lab exercise," Isolation..
Find a necessary and sufficient condition on the parameters for corr
What is the standard error of this difference between the two means?
A box contains 100 balls, numbered from 1 to 100. If three balls are selected at random and with replacement from the box, what is the probability that the sum of the three numbers on the balls selected from the box will be odd?
4. Each member of a random sample of 15 business economists was asked to predict the rate of inflation for the coming year. Assume that predictions for the whole population of business economists follow a normal distribution with standard deviation 1..
Research question - Is there a positive correlation between the amounts of profits (Dependent Variable) and total sales (Independent Variable) based on the costs of the process of production and distribution?
Consider the way the table is arranged. If the hypothesis is correct, should we find a positive sign on Somers' dyx or a negative Signon Somers' dyx? Explain how you know.
A few days ago you answered a question I had on probability. The original equation was R(t)=a^(-bt). In your answer you changed it to R(t) = a* e^(-bt). Can you explain why you added the e?
Let X1....X10 be a random sample from a population with mean 50 and standard deviation 4. Let X be the sample mean. Find the expected value and standard deviation of X. Do you know the probability distribution of X ? Clearly state any neces..
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