Find lower and upper quartiles-median

Assignment Help Basic Statistics

Reference no: EM13965316

The following are the closing prices of some securities that a mutual fund holds on a certain day:

10.25	5.31	11.25	13.13	18.00	32.56	37.06	39.00
43.25	45.00	40.06	28.56	22.75	51.50	47.00	53.50
32.00	25.44	22.50	30.00	24.75	53.37	51.38	26.00
53.50	29.87	32.00	28.87	42.19	37.50	30.44	41.37

(a) Find the mean, variance, and range for these data and interpret.

(b) Find lower and upper quartiles, median, and interquartile range. Check for any outliers.

(c) Construct a box plot and interpret.

(d) Construct a histogram.

(e) Locate on your histogram x, x ± s, x ± 2s, and x ± 3s. Count the data points in each of the intervals x± s, x ± 2s, and x ± 3s and compare this with the empirical rule.

Reference no: EM13965316

Questions Cloud

Calculate temperature gradient in the bar at steady state : A uniform copper bar 50 cm long is insulated on the sides and has its ends exposed to ice and steam respectively. If there is a layer of water 0.1 mm thick at each end, calculate the temperature gradient in the bar at steady state.

Bell-shaped distribution : Assuming that the food expenditure of the households of an entire city of 400,000 will have a bell-shaped distribution, how many households of this city would you expect to fall in each of the intervals, x ± s, x ± 2s, and x ± 3s?

What is its thickness : One particular type operates at 3000 volts and has a holding power of 2 atmospheres (2 x 10^5 pascals). If the insulator is Mylar (relative permittivity = 3.2), what is its thickness?

Construct a histogram and interpret : Construct a histogram and interpret. Locate on your histogram x ± s, x ± 2s, and x ± 3s. Count the data points in each of the intervals x, x± s, x ± 2s, and x ± 3s. How do these counts compare with the empirical rule?

Find lower and upper quartiles-median : (a) Find the mean, variance, and range for these data and interpret. (b) Find lower and upper quartiles, median, and interquartile range. Check for any outliers. (c) Construct a box plot and interpret.

Assume that the company uses the weighted average method : Compute the equivalent units for May's activity for the first department. Determine the costs per equivalent unit for May.

Index of respiratory muscle strength : Maximal static inspiratory pressure (PImax) is an index of respiratory muscle strength. The following data show the measure of PImax (cm H2O) for 15 cystic ?brosis patients.

Compute how fast the star is moving relative to the earth : If a diffraction grating has 6,000 grooves per centimeter, to what angle will the first order constructive interference "line" of the Hydrogen Alpha (red) emission be diffracted?

Find lower and upper quartiles : (a) Find the mean, variance, and range for these data and interpret. (b) Find lower and upper quartiles, median and interquartile range. Check for any outliers and interpret. (c) Construct a box plot and interpret.

User Account

All Pages