Questions
The USDA is concerned that most farmers are older Americans. In 2000, it was reported that...

The USDA is concerned that most farmers are older Americans. In 2000, it was reported that 25% of all US farmers were over the age of 65. In 2020, a random sample of 350 US farmers was taken and it was found that 98 were over the age of 65. The USDA claims that the proportion of all farmers who are over the age of 65 is now greater than 25%. Does this provide evidence to support the USDA’s claim at the 5% significance level? Run a hypothesis test. Be sure state Ho and Ha, the test statistic and p-value, whether you reject Ho or not and your conclusion in terms of the claim.

In: Statistics and Probability

A school that opened with 1500 students in the year 2000 was expected to grow at...

A school that opened with 1500 students in the year 2000 was expected to grow at a rate of p'(t)= 150/ √(1+.2t), where p(t) represents the total school population t years after 2000. What was the expected enrollment in 2005.

I got p(t) to be 1500√u and I can't find out how to get C. If someone could make sure I have the right p(t) and explain how to get C, that would be great.

In: Math

A 2000 kg car is sitting at a stop sign and begins to accelerate to a...

A 2000 kg car is sitting at a stop sign and begins to accelerate to a speed of 5km/hr at that moment a 1000kg car smashed into the rear end of thus car and stuck together in the collision. A cop shows up to the scene and assumes the 1000 kg car was speeding at 50km/hr by measuring the tire marks that are 3 m long. Assume the the coefficient of friction is 0.8 what is the speed that the car was going when the accident took place.

In: Physics

In the year 2000, the Chinese economy’s growth was not as fast as the government expected....

In the year 2000, the Chinese economy’s growth was not as fast as the government expected. The Chinese government prolonged the Labour Day vacation (in May) to 7 days so that people could spend more.

a. Explain this decision, using the model of aggregate demand and aggregate supply.

b. Why did the Chinese government not wait until the economy adjusted back to its expected long-run position of high economic growth?

In: Economics

2. In a survey of 2000 students, 1638 of them thought that the prices in the...

2. In a survey of 2000 students, 1638 of them thought that the prices in the school cafeteria were too high.

2a. Find a point estimate for the proportion of the school that thinks the prices in the school cafeteria are too high.

2b. Which requirement might not be met here?

2c. Find a 90% confidence interval for the proportion of the school that thinks the prices in the school cafeteria are too high.

In: Statistics and Probability

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is...

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1400 kg , is going from north to south at 14.0 m/s . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 60.0 ∘ south of east from the point of impact. How fast were the enmeshed cars moving just after the collision? How fast was car A going just before the collision?

In: Physics

The heights of 2000 students are normally distributed with a mean of 165.5 centimeters and a...

The heights of 2000 students are normally distributed with a mean of 165.5 centimeters and a standard deviation of 7.1 centimeters. Assuming that the heights are recorded to the nearest half-centimeter, how many of these students would be expected to have heights:

(a) less than 151.0 centimeters?

(b) Between 163.5 and 173.0 centimeters inclusive?

(c) Equal to 168.0 centimeters?

(d) Greater than or equal to 182.0 centimeters?

In: Statistics and Probability

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is...

Two cars collide at an intersection. Car A, with a mass of 2000 kg , is going from west to east, while car B, of mass 1300 kg , is going from north to south at 17.0 m/s . As a result of this collision, the two cars become enmeshed and move as one afterwards. In your role as an expert witness, you inspect the scene and determine that, after the collision, the enmeshed cars moved at an angle of 65.0 ∘ south of east from the point of impact.

Part A: How fast were the enmeshed cars moving just after the collision?

v=_____________m/s

Part B: How fast was car AA going just before the collision?

Va=_____________m/s

In: Physics

The demand curve for turnip can be represented by the following equation: ? = 2000 −...

The demand curve for turnip can be represented by the following equation: ? = 2000 − 400? There are only two producers and the marginal cost to produce a turnip is $2 (There is no fixed cost). If the capacity of each firm is 600 output, calculate the price range of turnip under the Bertrand-Edgeworth Model.

In: Economics

Given the following information concerning a four-year planning horizon for a particular ERP system implementation: Licensing...

Given the following information concerning a four-year planning horizon for a particular ERP system implementation: Licensing rights for all four (4) years - $400,000 Application server and database server purchase - $75,000 (four-year expected life) Computer purchases and upgrades - $28,000 (one-time charge) Maintenance contract for computers and servers -- $5,500 per year Training - $10,000 for the first year, $5000 for the remaining three years Consulting - Free for the first 6 months then $12,000 per year (prorated for partial years) New hire - Database/ERP system administrator at $200,000 annual salary (includes benefits) Suppose the total costs for ERP system implementation over the four year planning horizon is $1,440,000. It would be better to use SaaS to contract out ALL of the above expenses for a convenient monthly fee as long as that fee was less than: $48,000 $30,000 $12,000 $25,000 not enough information to determine

In: Accounting