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1. Comment on the shape of the distribution. (You may refer to both the boxplot

ID: 3062529 • Letter: 1

Question

1. Comment on the shape of the distribution. (You may refer to both the boxplot and the normal qq plot when commenting on the shape.) Comment on the suitability of the t procedures for this data.

2. Then calculate a 95% confidence interval for the population mean percentage (use R software if you can, show the code too please)

3. Give an appropriate interpretation of the 95% confidence interval given by R, in the context of the problem. To what population do your conclusions apply? Comment on any biases that might be present.

Q Search in Document Home Insert Design Layout References Mailings Review View AaBbocDde AaBbcDdeAaBbCcD Subite Subtle Emph. Emphasis Styles Paste 910 1112 1314 1516 Part I: Post-mortem body weight compared to pre-mo rtem body weight Percentage change in body woight before and after death Percentage change in body waight before and ater death Boxplot of %change in body weight before and after death gaplot of %change in body weight before and after death Page 1 of 2 54 Words English (US) 140%

Explanation / Answer

Q1)

From box plot obseve that central line(median) seems to be at downword directions therefore distribution is not symmetric and from normal qq plot some data points falls far from center line therefore distribution is not normal. t procedure is not suitalbe for this distribution because t procedures is used when distribution is symmetric.

For Q2 and Q3 please provide the sample values or data.