A quick survey gives the pricean estimated average for a 170

A quick survey gives the price-an estimated average for a 170-gram can-for 14 different brands of water-packed light tuna, based on prices paid nationally in supermarkets:

0.99 1.92 1.23 0.85 0.65 0.53 1.41

1.12 0.63 0.67 0.69 0.60 0.60 0.66

A) Find the average price for the 14 different brands of tuna.

B) Find the median price for the 14 different brands of tuna.

C) Based on your findings in part (A) and (B), do you think that the distribution of prices is skewed? Explain.

In a psychological experiment, the time on task was recorded for 10 subjects under a 5-minute time constraint. These measurements are in seconds:

175 190 250 230 240

200 185 190 225 265

A) Find the average time on task.

B) Find the median time on task.

C) If you were writing a report to describe these data, which measurement of central tendency would you use? Explain.

Solution

A. Average of first data is 0.89

B. Median is 0.68

C. As mean is greater than median data is not symmetric hence it is skewed.

Now second problem

A. Average for second data is 215

B. Median is 212.5

C. While writing report I would prefer median as skewed data doesn\'t effect median value.