Statistical difference in driving speeds

Reference no: EM1394574

A 150 - 300 word response to the following:

A research firm tracks the average highway speed on 30 drivers driving home on Day 1. For the next 10 days, the drivers are given two cups of coffee one hour before the drive home. On the 10th day, the average highway speed is measured again. Does this study involve dependent or independent samples? You are interested in knowing if there is a statistical difference in driving speeds between Day 1 and Day 10. Which statistical test would be appropriate? Why?

Reference no: EM1394574

Questions Cloud

Discuss biological advantage for organisms : What would be the biological advantage for organisms/cells that have alternative energy pathways such as fermentation?

What is the concentration of unknown acid solution : What is the concentration of unknown acid solution? Write the neutralization reaction, balance it, name the products THEN Solve the problem above.

What is incorporated in cost basis of long-lived asset : What is incorporated in cost basis of long-lived asset? Describe for at least two kinds of such assets. What sources are reliably utilized to evaluate asset's useful life?

Compute and enter response to three significant figures : Using a sample of 0.385 g of Alka-Seltzer, the mass of Carbon dioxide is found to be 0.122 gram. Compute and enter response (in numerical value only) to three significant figures.

Statistical difference in driving speeds : You are interested in knowing if there is a statistical difference in driving speeds between Day 1 and Day 10. Which statistical test would be appropriate? Why?

Genetics probability based question : Two alleles at a loci, like for polydactyly. The dominant gene gives you six fingers on a hand. 20% of the alleles are dominant in a population, the rest are recessive.

Observing a sample proportion of voters : Calculated the probability of observing a sample proportion of voters 0.55 or higher supporting the incumbent governor.

Find difference in pressure between ch4 and ideal gas : 15.0 moles of gas are in a 5.00L tank at 22.2°C. compute the difference in pressure between CH4 and an ideal gas under these circumstances. The van der Waals constants for CH4 are a=2.300L2⋅atm/mol2 and b=0.0430 L/mol.

Confidence interval introduction : What happens to the confidence interval when we go from a 95% confidence level to a 99% confidence level? Is this desirable? When would we want to use a 99% confidence interval?

User Account

All Pages