Have Good Knowledge Of CPI~~Math Answer–3 Quick Math Questions On Consumer Price Index

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Can you help me understand this Mathematics question?

1) Use the table to answer the following questions. Assume that all prices have risen at the same rate as the The Consumer Price Index (CPI).

Total spending on health care in the United States rose from $85 billion in 1976 to $2.7 trillion in 2011. Compare the relative change in health care spending to the overall rate of inflation as measured by the Consumer Price Index.

Relative change in health care spending Round to the nearest percent

Overall rate of inflation as measured by the CPI

Round to the nearest percent

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2) Use the CPI table above to estimate the average cost of a dozen eggs in 1986 to the nearest cent if it cost $1.09 in 1998.

What percentage increase is this?

%

Round your answer to the nearest tenth of a percent.

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3) Use the CPI table in the textbook to estimate the cost of a gallon of milk in 1998 to the nearest cent if it cost $2.22 in 1986.

What percentage increase is this?

%Module 13 – Experiments (3 of 7 discussion 1) – Mod 13 Group 3: nursing assignment help
I need help with a Statistics question. All explanations and answers will be used to help me learn.

Learn by Doing

Here are the directions, grading rubric, and definition of high-quality feedback for the Learn by Doing discussion board exercises.
Context
A high school student named David Merrell did an experiment to examine if music affects the ability of rats to run a maze. The explanatory variable was exposure to music. He had three treatment groups: one group listened to heavy metal music by the group Anthrax. A second group listened to Mozart. The third group never heard music. This last group is the control group.

The response variable was the average time (in seconds) to complete three runs. Every week the rats ran the maze three times. Merrell recorded each rat’s average time for the week.

Direct controls of potential confounding variables:
Merrell trained all of the rats to run the same maze. He gave all mice the same amount of food and light. All mice had the same approximate age and weights. During the treatment phase, the rats were exposed to the treatment for the same amount of time, e.g. rats heard music at 70 decibels for 10 hours a day for a month.
Results:

By the end of the month the Anthrax group was much slower at running the maze. The Mozart group was much faster. The dotplots below show average run times for the first and last week of the experiment. Each dot represents one rat. The X-value is the rat’s average run time for the week. (Each rat ran the maze 3 times each week.) The blue line is the mean run time for each treatment group.

If you are curious, here is a video of Merrell explaining his experiment.

Merrell explaining his experiment (Links to an external site.)

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