In 1985, the cost of a Big mac was $1.69. In 2015, the cost of a big mac was $4.79. By comparison, the CPI-U in 1985 was 107.6, and the CPI-U in 2015 was 237.0. Remember that the consumer price index for urban consumers shows how the prices for goods and services change over time for people living in cities. From 1985 to 2015, how did the price of a big mac change compare to the change in CPI-U?

A researcher measures the braking reaction time of a subject and records a value of 2.4 seconds, but the subject's actual braking reaction time 1.9 seconds. What is the relative difference/error. (Use the second given value as the reference value and express result to the nearest percentage point). (Round to whole number like 31%)

Please answer a-d. Thanks

For women in a recent triathlon, the average finishing time was 5261 seconds with an SD of 807 seconds.  Find the cutoff time (in seconds) for the fastest 5% of women running the triathlon.  Round your answer to two decimal places.

It is not possible to calculate the percent of a number that is less than one. True or false?

suppose 15 percent of the computers in some university labs are defective

Use the following price information for selected items for 2010 and 2018. Production figures for those two periods are also given.

In January 2020, the price of a barrel of crude oil was $63.65. On August 24th , 2020, the cost was $45.19. What percent change does this represent?

Please show steps in Excel. The 32 teams in the National Football League (NFL) are worth, on average, $1.17 billion, 5% more than last year. The datafile NFLTEAMVALUE shows the annual revenue ($millions) and the estimated team value ($ millions) for the 32 NFL teams (Forbes website, February 28, 2014). a.Develop a scatter diagram with Revenue on the horizontal axis and Value on the vertical axis. Does there appear that there is any relationship between the two variables? b. What is the sample correlation coefficient? What can you say about the strength of the relationship between Revenue and Value? Team Revenue ($ millions) Current Value ($ millions) Arizona Cardinals 253 961 Atlanta Falcons 252 933 Baltimore Ravens 292 1,227 Buffalo Bills 256 870 Carolina Panthers 271 1,057 Chicago Bears 298 1,252 Cincinnati Bengals 250 924 Cleveland Browns 264 1,005 Dallas Cowboys 539 2,300 Denver Broncos 283 1,161 Detroit Lions 248 900 Green Bay Packers 282 1,183 Houston…