The blood platelet counts of a group of women have a​ bell-shaped distribution with a mean of 249.9 and a standard deviation of 63.8. ​(All units are 1000 ​cells/mu​L.) Using the empirical​ rule, find each approximate percentage below.

a. What is the approximate percentage of women with platelet counts within 2 standard deviations of the​ mean, or between 122.3 and 377.5​?

b. What is the approximate percentage of women with platelet counts between 58.5 and 441.3​?

a. Approximately ____% of women in this group have platelet counts within 2 standard deviations of the​ mean, or between 122.3 and 377.5. ​(Type an integer or a decimal. Do not​ round.) b. Approximately nothing​% of women in this group have platelet counts between 58.5 and 441.3

(Type an integer or a decimal. Do not​ round.)

b. Approximately ______​%of women in this group have platelet counts between 58.5 and 441.3.

​(Type an integer or a decimal. Do not​ round.)

Answer the following questions thoroughly. Use correct grammar and punctuation.

1) A student observes the following spinner and claims that the color red has the highest probability of appearing, since there are two red areas on the spinner. What is your reply? Your answers should include facts, rules, any definitions necessary to explain why the student is correct or incorrect.

2) In class, an experiment of flipping a coin is performed.

Pretend that you are introducing the concept of probability and introducing the terms 1) experiment, 2) outcomes, 3)sample space, 4) theoretical probability, and 5) empirical probability. Explain these terms, as if you were speaking to a 5th grade class, as if they knew nothing about probability. You will need to tell the class what each term , 1-5, is represented by in this particular example. Use correct grammar and punctuation.

1. Historically, women were less likely to invest in a college degree than men. Why was this the case? What has changed to reverse this trend?

2. Explain the economics underlying the human capital investment decision (specifically, the decision to go to college versus sticking with just the high school diploma).

3. Empirical evidence shows clearly that, on average, individuals with more years of education earn more money, other things equal. Two different theories support this evidence: human capital theory and signaling theory. Explain both theories.

4. Describe the trends over time in (a) educational attainment by gender; and (b) percentage of graduates in selected professional degree programs that are female. Then provide reasons for the particular significance of the 1970s in these trends. 5. Describe the trend since 1974 in the college wage premium and the gender difference in this trend.

Answer the following questions thoroughly. Use correct grammar and punctuation.

1) A student observes the following spinner and claims that the color red has the highest probability of appearing, since there are two red areas on the spinner. What is your reply? Your answers should include facts, rules, any definitions necessary to explain why the student is correct or incorrect.

2) In class, an experiment of flipping a coin is performed.

Pretend that you are introducing the concept of probability and introducing the terms 1) experiment, 2) outcomes, 3)sample space, 4) theoretical probability, and 5) empirical probability. Explain these terms, as if you were speaking to a 5th grade class, as if they knew nothing about probability. You will need to tell the class what each term , 1-5, is represented by in this particular example. Use correct grammar and punctuation.

Need step by step solutions and calculations

The following is a set of data from a sample of 11 items

X: 7 5 8 3 6 0 2 4 9 5 8

Y: 1 5 4 9 8 0 6 2 7 5 4

a. Construct a scatter plot using the sample data.

b. Calculate the mean, median variance and coefficient of variation and z-scores for X.

c. Determine the outliers.

d. Determine the quartiles of X.

e. Construct a box plot and determine the shape of X.

f. Is there a relationship between two variables X and Y? Explain.

g. What is the correlation between X and Y?

h. Approximately (Empirical Rule) how many of the data points in a bell-shaped distribution is within 1 standard deviation of the mean.

The previous question concerning drive times from Rexburg and CEI used too simplistic a model. In actuality, the drive times are normally distributed with mean drive time of μ=32μ=32 minutes and a standard deviation of σ=5.σ=5.

What is the probability that a drive will take less than 30.9 minutes? (Use two decimal places)


Using the empirical rule, 68% of all drive times should fall within what interval?


What drive times would be considered unlikely (or highly unlikely) to happen? (Select all correct answers)

• Less than 18 minutes
• Less than 23 minutes
• Less than 27 minutes
• More than 37 minutes
• More than 44 minutes
• More than 49 minutes

The 4% longest drives require at least how many minutes? (round to 1 decimal place)

Calculate the steady-state level of capital in each of the following economies. Unless other- wise stated, use the standard Solow model assumptions about national production, spend- ing/saving, and capital accumulation.

a) The contribution of physical capital to national production in advanced countries such as the United States may be overstated. Some empirical estimates suggest it is closer to 20%, rather than 33% (the one-third that pops up in the production function), which implies the appropriate (per effective worker) production function for the United States is y = k1/5. (5 points)

b) Research economists at the central bank for a particular country find that a 1% increase in income causes households to increase savings by more than 1%. To account for this, they adjust their growth model by using the assumption that household savings/investment (per effective worker) is given it = syt2. (5 points)

Forecasts the scores you think you will achieve for Weeks, 1, 2, 3, and 4 and send them to your professor.

During Week 5, using your actual scores for Weeks 1, 2, 3, and 4 and your forecast values, calculate a regression equation, r, and R² for this data.

Week 1-4

Actual score Forecast score

25 25

22 25

35 35

35 35

1. What data did you use in your regression equation? Which is the independent and dependent variable?
2. What is the regression equation, r, and R2 for your data?
3. Statistically, what does r and R2 tell you?
4. Based on your empirical evidence, how who well did you forecast your results? Justify your response.

Question:1
You dissolve 312 mg of a compound (A_wB_xC_yD_z) in water producing 14.31 mL of solution and use the photometer and standard solutions to find that the concentration of the A is 1.24 x 10^-2 M. The molar mass of A is 114.52 g/mol.

Moles of A in the solution sample:________________________________

Mass of A in the solution sample: _________________________________

Mass % of A in the compound: _______________________________

Moles of A in 100 grams of the compound: ________________________________



Question:2
The compound, A_wB_xC_y, like all compounds has an oxidation number of 0 (zero). The oxidation number of A is +1, the oxidation number of B is +2, and the oxidation number of C is –1. If there are two moles of A for every 3 moles of C in one mole of the compound, what is the empirical formula of the compound?



Question:3
Given the compound, K_wAl_x(SO₄)_y(H₂O)_z. 100.00 grams of the compound contains 8.24 grams of potassium and 5.69 grams of aluminum. What is the formula of the compound?

(Conceptual Question) Address the following questions pertaining to capital structure theories:

• What does the MM theory with no taxes (i.e., perfect capital markets) state about the value of a levered firm versus the value of an otherwise identical but unlevered firm? What does this imply about the optimal capital structure?
  

• Why does the MM theory with corporate taxes (otherwise markets are perfect) lead to 100% debt?
  

• According to the static trade-off theory, if a firm went from zero debt to successively higher levels of debt, why would you expect its stock price to first rise, then hit a peak, and then begin to decline?
  

• Explain how asymmetric information and signals affect capital structure decisions.
  

• Which capital structure theories does the empirical evidence seem to support? What issues should managers consider when making capital structure decisions?