A simple linear regression model based on 26 observations. The F-stat for the model is 6.45 and the standard error for the coefficient of X is 0.2. MSR = 54.75

Complete an ANOVA table.
Find the t-stat and the coefficient of X.
Find R2.

3. A pipette is used to add 46 mL of 0.1 M Pb(NO3)2 to a 294.0 mL solution of 0.2 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8

Fluctuations in the exchange rate of dollars against the pound sterling over a short time period were approximated by a normal distribution with a mean of 3.20 and a standard deviation of 0.2. What is the probability that the rate on a particular day was more than 2.85?

A binomial probability experiment is conducted with the given parameters. Use technology to find the probability of x successes in the n independent trials of the experiment. Use the Tech Help button for further assistance. n=9, p=0.2, x < 4

Convert the following equivalents to masses/volumes (g or mL):
1. 1.5 equivalents of KOH
2. 1.4 equivalents of RCO3H
3. 1.2 equivalents of NaOH
4. 0.2 equivalents of NaOH
5. 3.5 equivalents of ethyl bromide

Find the missing value required to create a probability distribution, then find the standard deviation for the given probability distribution. Round to the nearest hundredth.

x / P(x)
////////
0 / 0.2
1 / 
2 / 0.13
3 / 0.03
4 / 0.05

Answer the following unrelated short-answer questions.

a. An economist makes the following argument – “The economy basically self-corrects out of recessions. When the economy is in recession, unemployment creates an excess supply of labor, which causes wages to fall. As a result, employers increase their hiring and the economy recovers automatically.” How would a Keynesian respond to this claim?

b. Consider an economy where the reserve ratio is ? = 0.2 and the currency ratio is ? = 0.2. What Fed bond purchase is required in order to raise the money supply by $600 billion?

c. In 2019, government purchases of goods and services at all levels of government were $3.75 trillion (about 17% of GDP). Yet, the federal government alone had expenditures of $4.8 trillion. How can you explain this apparent inconsistency?

Consider the two assets A and B for which returns (%) under different conditions of economy are given as below.

1. Find the expected return of each asset
2. Find the risk (as measured by standard deviation of return) of each asset
3. If an investor decides to invest $8,000 in stock A and $12,000 in stock B, calculate the expected returns of the investor’s portfolio of stocks A and B.
4. Using the information, calculate the portfolio’s standard deviation if the correlation of the returns between stocks A and B returns is -0.25.

Please show work and how you get the numbers

Hi, I would like to know which method should we use when doing physics calculations?

Acceleration = Speed / Time

Let's say we are given 5 measurements of speed and time. S1, S2, S3, S4, S5 and T1,T2,T3,T4,T5.

We are given two methods.

1) Find the mean of speed and time, and find their respective standard deviation and standard error. E.g. speed = 0.5 +- 0.2 m/s and 3 +- 0.2 s, substituting into the acceleration formula and doing the respective uncertainties combinations/

or 2) Find the acceleration of each set e.g. (S1, T1), (S2,T2).... After which we find the mean acceleration from the 5 newly calculated results, standard deviation and standard error?

A stock is expected to pay a dividend of $10 in one year. Its future annual dividends are expected to grow by 20% pa. The next dividend of $10 will be in one year, and the year after that the dividend will be $12 (=10*(1+0.2)^1), and a year later $14.4 (=10*(1+0.2)^2) and so on forever.

Its required total return is 50% pa. The total required return and growth rate of dividends are given as effective annual rates.

Calculate the payback period of buying the stock and holding onto it forever, assuming that the dividends are received as at each time, not smoothly over each year. Note that you will have to find the price of the stock first.

Select one:

a. 1 year.

b. 2 years.

c. 3 years.

d. 4 years.

e. 5 years.