University professors are always interested in whether students are actually meeting the learning objective in a course. One of the learning objectives for this statistics class is that students will gain skills in statistical literacy. In other words, students should develop the ability to better understand the statistics that they read or hear about in the news. After teaching the course for several years, Dr. Gentzler wonders, “Are students meeting this learning objective? Do students who have taken SSI217 have greater statistical literacy than the entire student body?”. To find out, she develops a “statistical literacy scale” which runs from 0-20 with higher scores indicating greater statistical literacy. She administers a survey to the entire student body and a random sample of 100 former SSI217 students. Here are the results: The student body averaged 17 .3 on the statistical literacy scale. The population variance was never calculated. The SSI217 student sample averaged 19.4 on the statistical literacy scale, with a standard deviation of 5.2 points. Run the appropriate one-sample hypothesis test (with alpha = .05) to answer Dr. Gentzler’s research question.

Your work shown must include i. verifying that the assumptions are met.

ii. listing the null hypothesis and the research hypothesis.

iii. computing the appropriate test statistic.

iv. identifying the degrees of freedom (if necessary) and p-value v. writing a complete interpretation of the test and results.

show all work no outside sources

1. IDM purchases one model of computer at a wholesale cost of $300 per unit and resells it to end consumers. The annual demand for the company’s product is 600,000 units. Ordering costs are $1,200 per order and carrying costs are $75 per computer, including $30 in the opportunity cost of holding inventory. It currently takes 2 weeks to supply an order to the store. assume that demand can vary during the 2-week purchase-order lead time. The following table shows the probability distribution of various demand levels: Total Demand for computers for 2 Weeks Probability of Demand (sums to 1) 21,670 0.05 22,450 0.2 23,078 0.5 24,820 0.2 25,820 0.05 If IDM runs out of stock, no safety stock is kept. It would have to rush order the computers at an additional cost of $3 per computer. How much could IDM spend in stock out cost?

2.

IDM purchases one model of computer at a wholesale cost of $300 per unit and resells it to end consumers. The annual demand for the company’s product is 600,000 units. Ordering costs are $1,200 per order and carrying costs are $75 per computer, including $30 in the opportunity cost of holding inventory. It currently takes 2 weeks to supply an order to the store.

(Please round all numbers to the next digit).

What is the annual relevant total cost of ordering and carrying inventory with the EOQ?

Select one form of SPECIATION and share your rendition of this process of speciation. You can upload a drawing you have made or you can list the steps that occur. Once again mutation which provides variation is at the heart of the process. Mutation is the engine that runs evolutionary change. IF VARIATION IS NOT PRESENT IN THE ORIGINAL POPULATION THERE IS NO VARIETY AVAILABLE TO ADAPT TO THE NEW ENVIRONMENT AFTER THE CHANGE IN THE HABITAT OCCURS . IF YOU SAY THAT THE CHANGE IN THE ENVIRONMENT MAKES A MUTATION HAPPEN YOU WILL NOT RECEIVE CREDIT - BECAUSE THIS IS NOT CORRECT. MUTATIONS OCCUR RANDOMLY - NOT ON DEMAND

Make sure you account for this in your rendition.

By this I mean, you must show that a mutation has randomly occurred in the species prior to any other steps occurring. Once again showing the steps in the process is what is important here.

Draw or list each step in an example of speciation.

Allopatric speciation is just a fancy name for speciation by geographic isolation,

Peripatric speciation is a special version of the allopatric speciation model and happens when one of the isolated populations has very few individuals.

Sympatric speciation does not require large-scale geographic distance to reduce gene flow between parts of a population. Merely exploiting a new niche may automatically reduce gene flow with individuals exploiting the other niche.

In parapatric speciation, Individuals are more likely to mate with their geographic neighbors than with individuals in a different part of the population’s range.

For each of the descriptions of reactions, i – iv, directly below, match one of the statements, A – D. Put the appropriate letter A, B, C or D in the blank provided in front of each reaction description, i – iv.

i) ____ An endothermic reaction in which the products have less entropy than the reactants

ii) ____ An endothermic reaction in which the products have more entropy than the reactants

iii) ____ An exothermic reaction in which the products have less entropy than the reactants

iv) ____ An exothermic reaction in which the products have more entropy than the reactants

A. This describes a reaction that will be nonspontaneous at all temperatures.

B. This describes a reaction that will be spontaneous at all temperatures.

C. This describes a reaction that might be spontaneous or nonspontaneous depending on the temperature. A higher temperature favors a spontaneous reaction.

D. This describes a reaction that might be spontaneous or nonspontaneous depending on the temperature. A lower temperature favors a spontaneous reaction.

After 8:00pm on any Thursday, the amount of time a person spends waiting in line to get into a well-known pub is a random variable represented by XX. Suppose we can model the behavior of XX with the Exponential probability distribution with a mean of waiting time of 44 minutes.

(a) Provide the value of the standard deviation of this distribution. Enter your answer to two decimals.

σX=σX=

equation editor

minutes

(b) Suppose you are in line to get into the pub. Compute the probability that you will have to wait between 27 and 37 minutes to get in. Answer with four decimals.

P(27≤X≤37)=P(27≤X≤37)=

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(c) It has been 30 minutes since you entered the lineup to get into the pub, and you are still waiting. What is the chance that you will have waited at most 57 minutes, in total? Use four decimals in your answer.

P(waitintotalatmost57minutes)=P(waitintotalatmost57minutes)=

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(d) 55% of the time, you will wait at most how many minutes to get into this pub? Enter your answer to two-decimals.

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minutes

name a taxonomic or phylogenetic group that has lost a defining trait of the groups basal lineage and describe what the character is that has been lost. Describe one reason why losing a trait or a character does not "disqualify: a taxonomic group from belonging to a group that continues to exhibit a trait

Q. 1 (Max. Marks:30)
Tom plans to sell CD players over the internet & by mail order . He buys the players for $31 & sells them for $52. If payment by cheque accompanies the mail order (estimated to be 40% of sales), he gives 10% discount. If customers include a credit card number for either internet or mail order (estimated 30% of sales), they receive 5% discount. The remaining collections are estimated as follows:
One month following
15%
Two months following
6%
Three months following
4%
Uncollectable
5%

Sales forecast are as follows:
September
140 units
October
240 units
November
330 units
December
420 units
January
Business terminated

Max plans to pay his supplier 50% in the month of purchase, and 50% in the following month. A 6% discount is granted on payments made in the month in the month of purchase. However, Max will not be able to take any discounts on the September purchases because of cashflow constraints. All September purchases will be paid for in October.

Max has 50 players on hand (purchased in August and to be paid in September), and plans to maintain enough end-of-month inventory to meet 70% of the next month’s sales.
Required:
Prepare schedules for monthly budgeted cash receipts & cash disbursements & the cash budget . During which month will Max need to finance purchases?

Explain each step Properly

EXECUTIVE SUMMARY FAMILY DESCRIPTION Alan and Angel Young are both 36 years old. Mr. Young recently accepted a new job making $93,000 a year and Mrs. Young is currently unemployed. The Youngs have one children (newborn), a dog, and a Maine Coon cat. Angel is also highly educated in literature and law from prestigious universities. They are both licensed lawyers. The Youngs have been married for eight years. The Extended Family Mr. Young has a mother in her 60s, who is living far away and is modestly self-sufficient. He also has two siblings who are both married and self-sufficient. Alan inherited $400,000 from his late Uncle Fred, who was 100 years old when he died and had worked every day of his life. He has dwindled this inheritance down to $200,000. Mrs. Young has one brother who is married to a wealthy entrepreneur and they have two children. Angel’s mother is a pharmaceutical distributor and lives in another state. She is 60 years old and modestly self- sufficient. Angel’s father lives in the same town as the Youngs and her brother. He is self-sufficient, healthy, and has the utmost faith that the Youngs will become productive members of society. Angel’s Father (Trust #1) Angel’s father set up a trust for the benefit of Mrs. Young. Her brother is the trustee, but the trust is really controlled by her father. The trust regularly distributes $30,000 per year to Angel and from time to time, invades the corpus to buy her a new car or give her money for nonessentials. The balance in the trust is $700,000 and it has an average earnings rate of about 8.5% per year for the last ten years. The trust balance is growing, but there is no sign that distributions will increase. GOALS & CONCERNS 1. They want to have a proper insurance, investment, and estates portfolio. 2. They want their taxes analyzed. 3. They want to know the cost of college education for the newborn, expected to go to college in 18 years, so they can approach Angel’s father about fully funding 529 Plans college savings plan. The current cost of education is $20,000 per year in today’s dollars and the inflation rate is expected to be 7%, while general inflation is 3%. They will fund 5 years of education, and while they don’t know, they expect the 529 Plan’s investment rate of return to be 10%. 4. They want to plan for an early retirement (100% wage replacement ratio, excluding the trust income) at age 62, as they want to spend the autumn of their lives together traveling and visiting friends and family. Alan plans to save $18,000 per year in a 401(k) plan starting this year and to have an employer match of $6,000. They expect to live to age 90. 5. As neither of the Youngs currently have 40 quarters of Social Security earnings and because they are planning to retire at age 62, they do not want to include any Social Security retirement benefits in their planning. 6. They want to be debt free at retirement. INTERNAL INFORMATION THE RESIDENCE The current value of the residence is $550,000. The balance of the 30-year mortgage at 5.5% is $260,514. The land value is $150,000. The monthly payment is $1,703.37 and they have owned it for 8 years. They will not qualify for refinancing until Mr. Young has been employed for 12 months. INSURANCE INFORMATION Life Insurance Neither Alan nor Angel Young currently have any life insurance. Mr. Young expects to have $50,000 of group- term life insurance from his employer. Health Insurance They will be covered under Mr. Young’s employer’s health plan, which is an excellent plan. However, the cost will be $1,000 per month for the family. The lifetime benefit per person is unlimited. Disability Insurance Neither Alan nor Angel Young currently have disability insurance. Mr. Young will have a long-term, guaranteed renewable disability policy, provided by his employer, as of tomorrow for 65 percent of his gross pay, covering sickness and accidents with benefits to age 65. Homeowners Insurance The Youngs have an HO3 policy with endorsements for open perils and replacement value. They have a $250 deductible. The dwelling is covered for $300,000 and they have an 80/20 coinsurance clause. The premium is $2,400 per year. Auto Insurance They have a personal automobile policy (PAP) covering both cars with a $250 deductible for comprehensive and collision. They do not have uninsured motorist as they do not drive much, and both have safe vehicles. The liability coverage is $100,000/$300,000/$50,000. The annual premium is $1,800 for the two cars. INVESTMENT INFORMATION The Investment Portfolio The $200,000 investment portfolio produces variable income from -10% to +15%, depending on the year. It was originally $400,000 but with poor investment returns and expenditures, it has been reduced to $200,000 at this time. Last year’s income, which consisted mostly of dividends, was $8,000. Other Investment Assets The assets in the brokerage account are from gifts from Angel’s father. These assets are invested in a money market account but are currently earning 0%. Mr. Young’s 401(k) assets, which are from when he worked at the consulting firm, are invested in an equity index fund. Risk Tolerance Their portfolio consists of a few energy stocks that generated dividends and capital gains of approximately seven percent. They recognize that they need to modify their asset allocation but are not sure what to do. TAX INFORMATION For the last few years they have been low income tax payers but are uncertain as to this year. ESTATE INFORMATION They have not prepared any estate planning documents. Answer the following questions;

1. Risk Management Prepare an analysis of the Young’s current risk management situation and portfolio using appropriate metrics (benchmarks) from the textbook. Risk Product Metric Actual Recommendations Comments Life Insurance - His 12 - 16 x Gross Pay None Needs $1.5M 30 year term due to level of assets and income Cost $1,080 $.72 per $1000

2. Given the following expected cash flows for two projects, and an opportunity cost of capital of 10%, which project is better and why? (10 points)

            Expected Net Cash Flows

Year    Project A         Project B

0          -$10,000          -$10,000

1          $5000              $0

2          $5000              $0

3          $5000              $8,000

4          $5000              $2,000

3. Given the following expected cash flows for two projects, and an opportunity cost of capital of 8%, which project is better and why? (10 points)

            Expected Net Cash Flows

Year    Project A         Project B

0          -$1,000            -$1,000

1          $500                $50

2          $500                $300

3          $500                $400

4          $500                $2,000

Use appropriate relationships from chapter 8 of the textbook to determine the wavelength of the line in the emission spectrum of He+ produced by an electron transition from ni = 7 to nf = 3.

I got 1005nm before but it is apparently incorrect:

This is the correct wavelength for the transition in a hydrogen atom, but this species is the He+ cation which has two protons (Z=2) in its nucleus, and will have an entirely different emission spectrum compared to that of a single electron atom with only one proton. Use the equation

En=−Z2RHn2

where En is the energy of the electron in the nth level, Z is the atomic number corresponding to the number of protons in the nucleus (or total nuclear charge), RH is the Rydberg constant, and n is the energy level, to find the energy of the transition in a single electron species with more than one proton. Then, the wavelength can be calculated once the energy of the transition is known.