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Data analysing/applied statistics using R commander and formulas

I need the following questions to be solved as soon as possible. If there is something that seems unclear, I can help out with translations. I need this done as soon as possible for a reasonable prize tag.

1.

The datafile [login to view URL] contains samples of information about visitors to a website, every individual sample note if they have converted and made a purchase or not.

Create a confidence interval of 95% for every visitor that has converted to declare the following:

a) Show which mathematical formula that should be used

b) Put the right numbers and table value / chart value into the mathematical formula

c) Calculate by hand or use RCommander the confidence interval

d) Interpret the confidence interval with words

2.

The datafile [login to view URL] shows the average amount of sessions per week (in thousands) on a webpage before and after a marketing campaign.

a) Illustrate and visualize the data in a suitable diagram and assess the data quality

Try a 5% level of significance if the marketing campaign has increased the amount of sessions per week by declaring the following:

b) Create a hypothesis

c) Assign which test variable (t-table) that should be used and put the right numbers into it

d) Report the results of the test with critical value-method or as a p-value

e) Report what prerequisites / preconditions the method is based on and report if the

conditions have been met.

f) Interpret the results of the test

3.

We are running a survey with pop-ups on a website with the purpose of collecting information about the following.

Question 1: What web browser are you using?

( ) Internet Explorer

( ) Google Chrome

( ) Other

Question 2: Do you experience our website as fast?

( ) Yes

( ) No

The data is contained in [login to view URL]

Try a 5% significance if there is any correlation between web browsers and if the website is experienced as fast by declaring the following:

a) Create the hypothesis

b) Assign which test variable (t table) that should be used and put the right numbers into it

c) Report the results of the test with critical value-method or as a p-value

d) Report what prerequisites / preconditions the method is based on and report if the

conditions have been met.

e) Interpret the results of the test and write which web browser you would recommend to the

user who wants to have the fastest experience on the web site.

4.

Sales statistics from a web shop show that 14% of all checkouts is above 500kr. The web shop has a large number of checkouts and it is reasonable to assume the checkouts are independent of each other.

a) What is the probability that 2 randomly selected checkouts both are of more than 500kr?

Present which mathematical formula should be used and calculate by hand.

b) What is the probability that out of 10 checkouts less than 2 are more than 500kr?

Present which mathematical formula should be used and calculate by hand.

Legend (Swedish to English translations)

Kr = Swedish Krona

t table = t table

xlsx document translations:

[login to view URL]

Resultat = Results

icke_konverterat = not_converted

har_konverterat = has_converted

[login to view URL]

Tidpunkt = Point in time

Innan_kampanj = Before_campaign

Genomsnittligt_antal_sessioner = Average_of_sessions

efter_kampanj = after_campaign

[login to view URL]

Fråga 1 = Question 1

Fråga 2 = Question 2

Ja = Yes

Nej = No

Kĩ năng: Nhập liệu, Xử lí dữ liệu, Excel, Ngôn ngữ lập trình R, Statistics

Xem nhiều hơn: statistical analysis with r john quick pdf, data analysis with r pdf, a handbook of statistical analyses using r pdf, statistics using r with biological examples, r data analysis examples, a handbook of statistical analyses using r 3rd edition pdf, a handbook of statistical analyses using r third edition pdf download, biostatistics with r pdf, free survey data india applied multivariate, data transfer mobile application using vbnet, getting data local user profile using, save data entry submit form using asp, extract data email message body using vba, retrieve data mysql database flash using actionscript, read data posted web page using vbnet, showing data excel internet explorer using excel macro, copy data internet explorer excel using macro, Analysis of Inventory Data using R, extract data from csv files using R, Cody, R P and Smith, J K (2005) Applied Statistics and The SAS Programming Language, 5th edition, Prentice Hall. (Reference for

Về Bên Thuê:
( 0 nhận xét ) Sweden

ID dự án: #17191099

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