Cashback Offer from 20th to 25th June 2021. Get Flat 20% Cashback credited to your account for a minimum transaction of $80. Post Your Question Today!

Question DetailsNormal
$ 10.00

STAT 230 Week 1 Answers Only

Question posted by
Online Tutor Profile
request

Questions

 

3. If you are told only that you scored in the 80th percentile, do you know from that description exactly how it was calculated? Explain.

 

10.

For the numbers 1, 2, 4, 16 compute the following:

SUM X

SUM X^2

(SUM X)^2

 

17. (AT) What is the independent variable of this experiment? How many levels

does it have?

 

18. (AT) What is the dependent variable? On what scale (nominal, ordinal, interval,

ratio) was it measured?

 

50. What is the population she is interested in?

 

52. The instructor’s sample produces a mean number of days absent of 3.5 days. This value is an example of

 

72. A study was done to determine the age, number of times per week, and the duration (amount of time) of residents using a local park in San Jose. The first house in the neighborhood around the park was selected randomly and then every eighth house in the neighborhood around the park was interviewed. The sampling method was:

 

80. Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below:

 

# of Courses

Frequency

Relative Frequency

Cumulative Relative Frequency

1

30

0.6

 

2

15

 

 

3

 

 

 

 

Table 1.33 Part-time Student Course Loads

1.     Fill in the blanks in Table 1.33.

2.     What percent of students take exactly two courses?

3.     What percent of students take one or two courses?

 

84. Forbes magazine published data on the best small firms in 2012. These were firms which had been publicly traded for at least a year, have a stock price of at least $5 per share, and have reported annual revenue between $5 million and $1 billion. Table 1.37 shows the ages of the chief executive officers for the first 60 ranked firms.

 

Age

Frequency

Relative Frequency

Cumulative Relative Frequency

40–44

3

 

 

45–49

11

 

 

50–54

13

 

 

Table 1.37

56 CHAPTER 1 | SAMPLING AND DATA

Age

Frequency

Relative Frequency

Cumulative Relative Frequency

55–59

16

 

 

60–64

10

 

 

65–69

6

 

 

70–74

1

 

 

(a)

(b)

a. b. c. d. e.

Table 1.37

What is the frequency for CEO ages between 54 and 65?
What percentage of CEOs are 65 years or older?
What is the relative frequency of ages under 50?
What is the cumulative relative frequency for CEOs younger than 55?
Which graph shows the relative frequency and which shows the cumulative relative frequency

 

90. Seven hundred and seventy-one distance learning students at Long Beach City College responded to surveys in the 2010-11 academic year. Highlights of the summary report are listed in Table 1.39.

Have computer at home

96%

Unable to come to campus for classes

65%

Age 41 or over

24%

Would like LBCC to offer more DL courses

95%

Took DL classes due to a disability

17%

Live at least 16 miles from campus

13%

Took DL courses to fulfill transfer requirements

71%

Table 1.39 LBCC Distance Learning Survey Results

  1. What percent of the students surveyed do not have a computer at home?
  2. About how many students in the survey live at least 16 miles from campus?
  3. If the same survey were done at Great Basin College in Elko, Nevada, do you think the percentages would be the

same? Why?

 

 

 

 

 

Available Answer
$ 10.00

[Solved] STAT 230 Week 1 Answers Only

  • This Solution has been Purchased 2 time
  • Submitted On 06 Aug, 2015 04:18:55
Answer posted by
Online Tutor Profile
solution
This is a an Word document that has the ve...
Buy now to view the complete solution
Other Similar Questions
User Profile
Exper...

STAT 230 Final Examination Summer 2015 OL1/US1 | Complete Solution

Answers: (a) True (b)False, enough information is not given to find P(A and B) (c) True (d) False (e) True Work for (a), (b), (c), (d) and (e): (a) Difference between mean and the point will be zero and hence the variance...
User Profile
Exper...

STAT 230 OL4 / US2 Sections Final Exam Spring 2015 | Complete Solution

10.It is impossible to tell using only the given information. 11.It is impossible to tell using only the given information. 12.Probability that a randomly selected junior is taking at least one of these two courses = number ...
User Profile
Exper...

STAT 230 Quiz Help Requested

Here, • There are fixed number of independent trials (number of women) • There are two outcomes of every events (abused or not) • The probability of success (not abused) is fixed in trial to trial So all con...

User Profile
Edna

STAT 230 Quiz Help Requested

Please find answers in the file attached. There is one item that has no question.It is item number 9. You may message me for clarifications.Please notify me if you got the question and i will append the tutorial. Thanks....
User Profile
Homew...

STAT 230 OL1 Sections Final Exam | Complete Solution All Work Shown

Answer: Both Work:Both of the cities has median as 85. As median is the middle most value so half of the values for both the cities are more than 85 indicating that they have equal percentage of households with values $85,...

The benefits of buying study notes from CourseMerit

homeworkhelptime
Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
tutoring
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
tutorsupport
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.
closebutton

$ 629.35