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Given the following set of data, bin them with equal width bins (choose how many) and then smooth the data by replacing each item with the median value of the bin. Show the new bins and show the new list of the data after smoothing.
18, 8, 22, 10, 12, 5, 4, 32, 2, 9, 16, 25, 26, 28
Part 2: Normalize the same data above with three techniques: min-max (to range 10 to 20), standardization, and decimal scaling. What value gets mapped to 0 in each case? What are the min and max values after normalization with each?
A developmental psychologist is examining the development of language skills from age 2 to age 4. Three different groups of children are obtained
To evaluate the program, he selected a random sample of eight participants and found the number of days each was absent in the six.
Spam Email spam is the curse of the Internet. Here is a compilation of the most common types of spam.
Due to increase in product demand, management needs to increase labor production hours by an estimated 270 hours. Any-Business currently has 30 production employees whose hourly wages varies from $7.50 - $8.50 per hour.
to boost holiday sales a jewelry store in bismarck north dakota is advertising the following promotion if more than
1. IA Credit Card Company wants to evaluate the usage of their card. They randomly selected 16 credit card holders and found that the mean amount they charged in the past twelve months was $2017, while the standard deviation was $867.
An investment newsletter makes general predictions about the economy to help their clients make sound investment decisions.
1. A STAT 200 professor took a sample of 10 midterm exam scores from a class of 30 students. The 10 scores are shown below: 95, 67, 76, 47, 85, 70, 87, 80, 67,
a new muscle relaxant is available. researchers from the firm developing the relaxant have done studies that indicate
I'm trying to determine what happens to the sample size if the level of confidence is reduced from 95% to 90% but the allowable error and the standard deviation remain
What are the main advantages of standardizing the normal distribution? Please explain.
They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.
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