Home
Homework Answers
Statistics
STAT 200:The British Department of Transportation studied to see if people avoid driving on Friday the 13th.

STAT 200:The British Department of Transportation studied to see if people avoid driving on Friday the 13th.: Expert Solutions for Success

The British Department of Transportation studied to see if people avoid driving on Friday the 13^th. They did a traffic count on a Friday and then again on a Friday the 13^th at the same two locations. The data for each location on the two different dates is in Table G. Estimate the mean difference in traffic count between the 6^th and the 13^th using a 99% level.

Table G: Traffic Count

Dates	6th	13th
1990, July	139246	138548
1990, July	134012	132908
1991, September	137055	136018
1991, September	133732	131843
1991, December	123552	121641
1991, December	121139	118723
1992, March	128293	125532
1992, March	124631	120249

Answer

α = 0.01

The differences between the traffic count on Friday, that is 6^th and 13^th is calculated as follows:

Test statistic,

The critical t-value for α=0.01 and 7 dof is 3.499

Therefore, we are 99% confidence that the mean difference in traffic count between the 6^th and the 13^th is between 556.04 and 3493.46.

Share the answer

Find out how much your paper will cost

Prices start at $12.99 per page (275 words) for writing and $8.5 for editing and proofreading.

Post a question

MONEY BACKGUARANTEED
NO HIDDENCHARGES

Find Answers by Subjects

Art Biology Business Chemistry Communication Media Computer Science and IT Creative Writing Economics Education Engineering General Geography History Law Leadership and Governance Mathematics Nursing Philosophy Physics Psychology Science Sociology Statistics Technology

STAT 200:The British Department of Transportation studied to see if people avoid driving on Friday the 13th.: Expert Solutions for Success

Answer

Find out how much your paper will cost

Find Answers by Subjects

Related Questions

The World Bank collected data on the percentage of GDP that a country spends on health expenditures and also the percentage of women receiving prenatal care

Stat-200: A study was conducted that measured the total brain volume (TBV) (in mm3 ) of patients that had schizophrenia and patients that are considered normal.

Table #A contains the value of the house and the amount of rental income in a year that the house brings in

A person’s educational attainment and age group was collected by the U.S. Census Bureau in 1984 to see if age group and educational attainment are related.

STAT 200: The income of males in each state of the United States, including the District of Columbia and Puerto Rico, are given in table E and the income of females is given in table F.

Stat-200 Researchers watched groups of dolphins off the coast of Ireland in 1998 to determine what activities the dolphins partake in at certain times of the day.

Develop scenario. Imagine that you are head of a household and have to determine a household budget plan based on the data available from the dataset. For instance, you are a 35 year old single parent with a high school diploma and one child.

In Africa in 2011, the number of deaths of a female from cardiovascular disease for different age groups are in table E ("Global health observatory," 2013)

Table A, below, contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013).

Do you have a lengthy or urgent essay to write?