Your book states that we must never be afraid to try something new, but fear is the single most obstacle to our professional creativity.
In: Operations Management
You measure the emission spectrum of hydrogen gas, and see many discrete wavelengths in the emission, of which, one is 102.6nm. To what initial and final states can this wavelength be attributed?. (hint, use a little trial and error to get the intergers)
In: Physics
use coulombs law to calculate the ionization energy in kj mol^-1 of an atom composed of a proton and an electron separated by 249 pm.
E ionization =
the formula we have states (E coulomb approx equals q1q2/r12 ?
In: Chemistry
Which of the following best explains what happens as photons of visible light are absorbed by dye molecules?
A. Certain electrons in the dye molecule move to a higher energy level, with the difference in energy between the lower and higher energy levels being the same as the energy of the absorbed photons
B. Certain chemical bonds in the dye molecules begin to bend and stretch with the difference in energy between the lower and higher vibrational states being the same as the energy of the absorbed photons.
C. The dye molecules begin to rotate faster in certain modes, with the difference in energy between the lower and higher rotational states being the same as the energy of the absorbed photons
D. Certain covalent bonds in the dye molecules begin to break and reform, with the bond energies of the bonds being the same as the energy of the absorbed photons
In: Chemistry
Dabe is a 4 week old breastfed Male infant born at 39
weeks gestation by normal vaginal delivery. Mam states she is
breastfeeding on demand about every 2 to 3 hours.
subjects
mom states patient still sleeps lot
voids several times a day
objective
birth weight 3.6kg
a week current weight 4kg
he has gained in ounces and then adequate
no immunizations
questions -
1....is gabe behind in immunizations?if yes which one
2....is gabe weight gain appreciate for his age?remember that a baby a loses at least 2 to 3 oz. from birth weight to discharge weight.
3....what safety teaching is appropriate for the nurse to provide to Gabe patients remember anticipate guidance.
In: Nursing
An insurance company would like to compare the cost of claims at their company in two different states. They take a random sample of 50 of their claims from each state. A second insurance company claims that the samples are dependent and that any conclusions drawn are invalid. Do you agree? Explain. Select the correct answer below: No, the claims made in one state should not have any effect on the claims in another state. The company is only comparing their own claims, so the samples can be considered independent. Yes, since the samples are only taken from one insurance company, they are not a random sample of all of the claims. No, two samples are only independent if there is at least some overlap between the two samples. Yes, the two states could be close to each other, making some of the claims potentially the same.
In: Statistics and Probability
Suppose a newspaper article states that the distribution of auto insurance premiums for residents of California is approximately normal with a mean of 1502. The article also states that 25% of California residents pay more than 1875.
1. What is the Z score that corresponds to the top 25% (or the 75thth percentile) of the standard normal distribution? Round your answer to 4 decimal places.
2. What is the mean insurance cost?
3. What is the cutoff for the 75thth percentile?
4. Identify the standard deviation of insurance premiums in LA.
Round your answer to two decimal places.
Hint: Use the information from the first 3 questions in this
problem and the formula for finding the z-score.
- Please input your calculator functions. For example for normalcdf please show me all the values you used. Thanks!
In: Statistics and Probability
A political science model determines voter turnout based on location of a district and if voter ID laws exist in the district. A sampling of 40 districts nationwide were used.
(a) Voter Turnout = 46.3 – 3.4 * South; R2 = 12.0%
(t = -1.25)
where the South dummy variable takes a value of 1 if the district is in a Southern state.
Interpret the intuition of the regression and how strong an inference that is made.
(b) An additional dummy is added to the regression: ID laws is 1 if an ID law exists in the district and 0 if it does not.
Voter Turnout = 42.0 – 2.2* ID law – 3.4 * South – 4.7*(ID law* South); R2 = 40.0%
(t = -2.00) (t = -1.80) (t = -2.50)
What is the purpose of study in this regression?
Compare states that are not Southern with ID laws to South states with ID laws.
In: Statistics and Probability
(a) Design a 4-bit ring counter. Use an external asynchronous INIT input to initialize the flip-flops to a valid initial state. Also remember to hook up the CLOCK to all flip-flops.
(b) Design a 4-bit Johnson counter. Use an external asynchronous INIT input to initialize the flip-flops to a valid initial state. Also remember to hook up the CLOCK to all flip-flops.
(c) How many states does the ring counter in part (a) have? How many states does the Johnson counter in part (b) have?
(d) Starting at the initial state, show the repeating counting sequence for both the ring counter in part (a) and the Johnson counter in part (b). (That is, show the state of each counter on a cycle-by-cycle basis until it repeats.)
In: Electrical Engineering
For the following statements, state the null and alternative hypotheses and identify which represents the claim. Determine when a type I or type II error occurs for a hypothesis test of the claim. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed, and explain your reasoning. Explain how you should interpret a decision that rejects the null hypothesis. Explain how you would interpret a decision that fails to reject the null hypothesis.
a. It is reported that the number of residents in Wisconsin who support plans to recall the governor is 48%.
b. An Amish bakery store states that the average shelf life of their fresh baked goods is seven days.
c. A soda manufacturer states that the average number of calories in the regular soda is less than 150 calories per serving
In: Statistics and Probability