Go to a local library; collect a sample of books consisting of the ages of book...
Go to a local library; collect a sample of books consisting of the ages of book (based on copyright dates). Plan and describe the sampling procedure, then use the results to construct a confidence interval estimate of the mean age of all books in the library. Please, post and share your results with the class.
Homework Answers
I use the method of stratified random sampling to collect the sample of books. I randomly select 4 types of books namely friction, cooking, historical, and love stories. My strata is the type of book. From each of these book type (strata), I randomly select 10 books. I expect no bianess in the data, as my sample is a good representative of the population.
I take the level of significance Alpha as 5%. this indicates I am 95% confident about my results. The data obtained from the library regarding the age of book is given below.
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Go to a local library; collect a sample of books consisting of
the ages of book...
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Part 1: Create your own Hypothesis Test and Confidence Interval from 1 sample Using methods from chapter 8, test ONE claim about a population parameter by collecting your own data or using our class survey data. Include your written claim, hypothesis in both symbolic and written form, relevant statistics (such as sample means, proportions etc.), test statistic, p-value (or critical value), conclusion, and interpretation of your conclusion in the context of your claim. Use a 0.05 significance level. You will...
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______________________________________________________________________________________________________
_______________________________________________________________________________________________________________________________________
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