# Question: the data below indicate the contamination in parts per million...

###### Question details

The data below indicate the contamination in parts per million
in each of 50 samples of drinking water at a specific
location.

hw1_q6a

a) What is the first quartile of the data?

b)What is the third quartile of the data?

c)What is the median of the data?

d)What is the mean of the data? Give your answer to three decimal
places

e)Values that are greater than Q3 + 1.5 IQR or less than Q1 - 1.5
IQR are typically considered outliers. What value is an outlier in
this data?

f)Delete the outlier. What is the median after the outlier is
deleted?

g)What is the mean after the outlier is deleted? Give your answer
to three decimal places.

402 398 416 408 390 412 391 408 406 406 405 420 409 400 406 424 424 420 388 393 413 416 414 411 404 400 407 1650 405 393 409 412 403 401 419 389 396 404 403 404 389 416 402 405 408 407 400 393 403 399 |