She has just hired an additional employee. He lives in a different city and travels 90 miles a day on public transportation. Recompute the mean and median. Describe the effect of this outlier

An airplane flies 560 miles with a tailwind in 2 hours 20 minutes. It takes 3 hours to fly against the headwind. Find the speed of the airplane in still air and the speed of the wind.

A car dealership would like to test the hypothesis that a difference exists in the city gas mileage (miles per gallon when driven in the city) of three cars, Honda Insight, Hyundai Ioniq and Toyota Camry. The following data represent the miles per gallon for a random sample of Honda Insight, Hyundai Ioniq and Toyota Camry cars.

Use Excel to perform a one-way ANOVA and state your conclusion using α = 0.05.

The Highway Safety Department wants to study the driving habits of individuals. A sample of 34 cars traveling on a particular stretch of highway revealed an average speed of 68.8 miles per hour with a standard deviation of 9.8 miles per hour. Round to 4 decimal places.

1.Calculate a 99% confidence interval for the true mean speed of all cars on this particular stretch of highway.

( , )

2. What sample size is needed to estimate the true average speed to within 2.5 mph at 99% confidence? Note: For consistency's sake, round your t* value to 3 decimal places before calculating the necessary sample size.

Choose n =

suppose you have joined the navy and are stationed aboard the nuclear submarine seawolf. your boat has been assigned to conduct torpedo practice in the gulf of Mexico. you enter the practice area point A and travel 40 miles due eat. then you change direction by turning at an angle of 75 degrees northward. the submarine then travels for 30 miles in the new direction. How far is the current location of your submarine at point C from the entry point of the practice area (point A)? c=40mi a=30mi what is the area of the ocean enclosed in triangle ABC? find the measures of all three angles in triangle ABC. explain what methods used.

A tire company has developed a new type of steel-belted radial tire. Extensive testing indicates the population of mileages obtained by all tires of this new type is normally distributed with a mean of 39,531 miles and a standard deviation of 4,075 miles. The company wishes to offer a guarantee providing a discount on a new set of tires if the original tires purchased do not exceed the mileage stated in the guarantee. What should the guaranteed mileage be if the tire company desires that no more than 2 percent of the tires will fail to meet the guaranteed mileage? (Use a z-score to 2 decimal places in your intermediate calculations. Round your final answer to the nearest mile.)

Earth has a mass of 6.0 x10^24 kg and the moon 7.3 x 10^22 kg. The center of the moon is 238,900 miles from the center of Earth.

The moon goes around the Earth-Moon center of mass with a speed of 2,288 miles per hour (3,683 kilometers per hour).

a.)What is the orbital speed of Earth in the Earth-Moon center of mass frame (total momentum is zero)? Please, give your answer in meters per second.

b.) Using the formula for centripetal force, what is the force of gravity exerted by the Earth on the Moon?

c.) Using the formula for centripetal force, what is the force of gravity exerted by the Moon on Earth?

Mary Zimmerman decided to purchase a new automobile. Being concerned about environmental issues, she is leaning toward the hybrid rather than the completely gasoline four-cylinder model. Nevertheless, as a new business school graduate, she wants to determine if there is an economic justification for purchasing the hybrid, which costs $1,100 more than the regular VUE. She has determined that city/highway combined gas mileage of the Green VUE and regular VUE models are 27 and 23 miles per gallon respectively. Mary anticipates she will travel an average of 12,000 miles per year for the next several years. (Round your answers to two decimal places.

Do heavier cars really use more gasoline? suppose a car is chosen at random. Let x be the weight of the car (in hundreds of pounds) and let y be the miles per gallon (mpg). The following information is based on data taken from consumer reports (Vol. 62, No.4). This correlation coefficient r indicates a ____ correlation between the weight of the car and the miles per gallon

Choose the correct answer:

A.) Positive strong

B.) Negative week

C.) Negative strong

D.) Negative moderate

Required information

Brief Exercise 9.10 Alternative Depreciation Methods (LO9-4)

[The following information applies to the questions displayed below.]

M. C. Jones purchased a truck for $30,500 to be used in his business. He is considering depreciating the truck by two methods: units-of-output (assuming total miles driven of 80,000) and double-declining-balance (assuming a 5-year useful life). The truck is expected to be sold for approximately $6,500 at the end of its useful life.

Brief Exercise 9.10 Part a

Prepare a comparison of the first year’s depreciation expense that would be recognized by Jones under these methods, assuming the truck was actually driven 10,000 miles in the first year.