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

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

Answer

Related Questions

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)

STAT200: In the first assignment (Assignment #1: Descriptive Statistics Analysis Data Plan), you developed a scenario about annual household expenditures and a plan for analyzing the data using descriptive statistic methods.

STAT 200 Week 3 Homework Problems

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.

Many high school students take the AP tests in different subject areas

STAT200: Assignment #1: Descriptive Statistics Data Analysis Plan

STAT 200 : All Fresh Seafood is a wholesale fish company based on the east coast of the U.S. Catalina Offshore Products is a wholesale fish company based on the west coast of the U.S.

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

A study was undertaken to see how accurate food labeling for calories on food that is considered reduced calorie.

Do you have a lengthy or urgent essay to write?