STAT 200 Week 2 Homework (UMUC)

BUY HERE: STAT 200 Week 2 Homework (UMUC) – Homeworkmade

STAT 200 Week 2 Homework (UMUC)

1. Lane et al,pg 118 #7.

For the data from the 1977 Stat. and Biom 200 class for eye color, construct the following FOUR graphs:

A) Pie Chart

B) Horizontal Bar Chart

C) Vertical Bar Graph

D) A Frequency Table with the relative frequency of each eye color

2. Lane et al,pg 119 #9.

Which of the box plots on the graph has a large positive skew? 

Which has a large negative skew?

3. Lane et al,pg 160 #6.

Which of these measures of central tendency will change when you correct the recording error?

4. Lane et al,pg 161 #8.

Which of the following measures of central tendency or variability can you determine (mean, median, mode, trimean, geometric mean, range, interquartile range, variance, standard deviation)?

5. Lane et al,pg 164 #30.

For the ADHD Treatment (AT) case study, what is the mean number of correct responses of the participants after taking the placebo (0 mg/kg)?

6. Lane et al,pg 164 #31.

For the ADHD Treatment (AT) case study, what are the standard deviation and the interquartile range of the d0 condition?

7. Illowsky et al,pg 137; #78.

a. Construct a histogram: b. Complete the frequency table:

8. Illowsky et al,pg 138; #80.

If the data were collected by asking the first 111 people who entered the store, then the type of sampling is:

a. cluster

b. simple random

c. stratified

d. convenience

9. Illowsky et al,pg 139; #84.

a. which quarter has the smallest spread of data? What is that spread?

b. which quarter has the largest spread of data? What is that spread?

c. find the interquartile range (IQR).

d. are there more data in the interval 5–10 or in the interval 10–13? How do you know this?

e. which interval has the fewest data in it? How do you know this?

10. Illowsky et al,pg 141; #88

a.   In complete sentences, explain why each statement is FALSE.