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which of the following would have a higher standard deviation

 
 

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1.I was looking at my notes on protein structure and I am trying to understand quaternary structures for proteins. I ...

or proteins. I understand that primary, secondary, and tertiary structures are encoded by one gene each. However, I am not entirely sure if quaternary structures are encoded by one or multiple different genes. The reasons why I am a little confused is for two reasons. Firstly, quaternary structures are made up of more than one protein subunit (i.e. multiple polypeptides). Secondly, as I understand, Hemoglobin, for example, has different subunits, each of which is encoded by a different gene. Does this necessarily mean that all quaternary structures are composed of proteins encoded from different, separate genes? If quaternary subunits are encoded by different, separate genes, can those different genes be located on different loci, or are all of the subunits necessarily encoded by the different gene but its mRNA molecule is spliced differently?
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2. (‘JJ) uses a certain machine to produce carjacks. The machine cost the company $90,000 three years ago. The reduced ...

s ago. The reduced book value now stands at $60,000. A new model of the machine is currently available for $139,350. The new machine has a useful life of five years, at which time it will be sold for $20,000. Using the new machine, the expected unit sales of the car jacks would be 6,000 car jacks per annum. The estimated unit selling price is $35 for the first year. As a result of the COVID-19 pandemic in Singapore, JJ is experiencing labour shortage. JJ will have to transfer workers from another department to the new project. These workers earn a contribution of $2 per direct labour hour in their original department. The fixed overhead cost would be $2.20 per hour and this is expected to remain unchanged. JJ’s products are being sold to a distributor. The sales agreement allows the selling price to rise at the rate of 10 percent per year after the first year. The unit cost price, except for fixed costs, is expected to increase at the same rate as the selling price. Working capital requirements are expected to be $15,000 in the first and second years, increasing to $18,000 in the third year and is expected to remain at this level till the end of the project. All the amounts of working capital will be recovered at the time of project termination. The new project uses cutting-edge technology and so enjoys a tax holiday from the authorities. The drawback of using this high-risk approach is that the new project requires a minimum return of 27 percent per annum. Required: Identify the relevant cash flows for the decision as to whether JJ should proceed to purchase the new machine. Note: To show all workings with accompanying explanations. Word count requirement: 800
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3."Given principle angle Ø between 0 and 360 degrees, determine the following: i) The exact values of x, y, and ...

of x, y, and r ii) at least 2 possible angles for which the following is true Cos (Ø)= -2/3
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5.Show the mechanism for the synthesis of a polyester of your choice. Show all starting materials and coproducts if applicable. ...

coproducts if applicable. For the polymer, show two repeating units and indicate which atoms belong to each unit.
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6.Module 6 – Mid-Term Question Tanya is 45 years of age and her 2020 income is made up of employment income ...

t income of $93,500 and she contributed $9,800 to her Registered Retirement Savings Plan. (Assuming she has the RRSP contribution room from working in 2019). She was awarded a year-end bonus of $10,000, all of which was payable in February 2021. [The bonus was received on February 10, 2021 – consider if the bonus should be included in employment income in 2020 or 2021 (cash or accrual basis)]. For 2020, her employer withheld maximum CPP ($2,898) and EI ($856) contributions. Tanya lived with her family in Lethbridge, Alberta. Other information pertaining to 2020 is as follows: Tanya’s spouse is 47 years old and his employment income for the year totaled $45,500. Bob and Tanya have a daughter, Tammy, who is 3years old in 2020. Tammy was taken care of while Bob and Tanya worked during 2020 by Bob’s mother who is currently unemployed and retired. The family’s medical expenses for the year, all of which were paid by Bob, totaled $3,355. Of this amount, $300 was reimbursed by Tanya’s employer. During the year, Tanya made cash donations to registered Canadian charities in the amount of $3,500 and Bob made $200. (Consider whether Bob will have higher donation credit if he transferred the $200 donation credit to Tanya or if he should use the credit on his return) During the year, Bob made contributions to federal political parties totaling $1,150. Both Tanya and Bob earned rent income from their house basement rented out during 2020. The details of the rent activities are as follows: Rent income $7,500 Repairs (Bathroom and Kitchen) $1,080 Utilities (100% for the basement) $1,320 Advertising the basement $150 No Capital Cost Allowance is planned as they would like to maintain the entire house as a principal residence in the future. The net rental income will be shared jointly (50%) on their tax return in 2020. Required: Use the above information to determine Tanya and Bob’s Net income for tax purposes Federal tax payable before tax credit (Gross tax) Tax credits available Federal tax payable for 2020. (Do not consider provincial tax payable) Federal Tax Bracket Tax Bracket 2020 Tax Rate 2020 Tax Bracket 2021 Tax Rate 2021 Up to $48,535 15% Up to $49,020 15% $48,536 to $97,069 20.50% $49,021 to $98,040 20.50% $97,070 to $150,473 26% $98,041 to $151,978 26% $150,474 to $214,368 29% $151,979 to $216,511 29% $214,369 and over 33% $216,512 and over 33%
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7.(1) The claim by a weight loss Company is that on average, the client will lose 10 pounds over ...

first 2 weeks. 50 people who joined the programme are sampled, their weight loss is 9 pounds with a standard deviation of 2.8 pounds. Can we conclude at the .05 level that a person joining the programme will lose less than 10 pounds? (2) The following is a random sample of 90-day futures prices in dollars for 1 troy oz. of silver from The Wall Street Journal issues in May and June of 1997: 4.74, 4.77, 4.87, 4.91, 4.83, 4.72, 4.92, 4.86, 4.97, 4.71, 4.90, 4.93, 4.75, 4.88, 4.79, 4.83, 4.89. Required: a. Calculate the mean b. Median c. Standard deviation of the 90-day future price of silver data (3) A mining company needs to estimate the average amount of copper ore per ton mined. A random sample of 50 tons gives a sample mean of 146,75 pounds. The population standard deviation is assumed to be 35.2 pounds. Required: a. Give a 95% confidence interval for the average amount of copper in the population of tons mined. b. Give a 90% confidence interval for the average amount of coper per ton c. Give a 99% confidence interval for the average amount of coper per ton (4) An e-commerce Website gets 2,385 visitors on a particular day. Among these, 1790 visitors explore the products by looking at more pages at the site. Among these 1790 visitors who explore the products, 387 make a purchase. Required: a. If a visitor chosen at random from all those who visited the site, what is the probability that the visitor explored the products b. If a visitor is chosen at random from all those who visited the site, what is the probability that the visitor made a purchase. c. If a visitor is chosen at random from all those who explored the products, what is the probability that the visitor made a purchase. d. Which of the preceding three probabilities is relevant to the design of the home page that leads to product page.
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8.Module 5 - Practice Question Mr. Jay Brown is 66 years of age and his 2020 income is made up of ...

loyment income of $75,800, contributed $6,500 to his RRSP. He also earned interest income from Guaranteed Investment Certificate (GIC) of $3,700 during 2020 and received Old Age Security benefits of $7,400 (because of large business losses during the previous two years, no amount was withheld from the OAS payments). Mr. Brown and his family live in Toronto, Ontario. For 2020, Mr. Brown’s employer withheld maximum CPP ($2,898) and EI ($856) contributions. Other information pertaining to 2020 is as follows: 1. Mr. Brown’s spouse is 59 years old and qualifies for the disability tax credit. Her income for the year totaled $4,500. 2. Mr. and Mrs. Brown have two daughters, Keith, aged 15 and Laura, aged 17. Keith had income of $2,700 for the year while Laura had net income of $3,000. In September 2020, Laura began full time attendance at a Canadian university. Mr. Brown paid her tuition fees of $6,000, of which $3,500 was for the fall 2020 semester. Laura is willing to transfer her tuition credit to her father. 3. The family medical expenses for the year, all of which were paid by Mr. Brown, totaled $3,845. Of this amount, $300 was paid for Keith and $900 for Laura. 4. During the year, Mr. Brown made cash donations to registered Canadian charities in the amount of $2,000. 5. During the year, Mr. Brown made contributions to federal political parties totaling $1,800. Required: Use the above information to determine Mr. Brown’s - Clawback amount for the social benefit repayment - Net income for tax purposes - Federal tax payable before tax credit (Gross tax) - Tax credits available - Federal tax payable for 2020.
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics