A problem of interest to health officials (and others) is to determine the effects of smoking during pregnancy on infant health. One measure of infant health is birth weight; a birth weight that is too low can put an infant at risk for contracting various illnesses. Since factors other than cigarette smoking that affect birth weight are likely to be correlated with smoking, we should take those factors into account. For example, higher income generally results in access to better prenatal care, as well as better nutrition for the mother. An equation that recognizes this is bwght 5 b0 1 b1cigs 1 b2 faminc 1 u. (i) What is the most likely sign for b2

Answers

Answer 1
Answer:

Answer:

β2 should have a positive sign

Explanation:

The regression equation is:

βwght = β0+β1cigs+β2faminc+μ

The equation tells us that the birth weight of a child is dependent on factors like cigarette consumption and family income.

β1 should have a negative sign because smoking during pregnancy has an adverse effect on birth weight. So there would be a negative correlation between birth weight and cigarette consumption.

β2 should have a positive sign. This is because while pregnant, a family with more income has the ability to provide better prenatal care and also better nutrition to the expectant mother. Therefore we have a positive correlation.

Answer 2
Answer:

Final answer:

In a regression model concerning effects of smoking and income on infant birth weight, the coefficient 'b2' associated with family income is expected to be positive. Higher income levels are associated with improved prenatal care and nutrition, which contribute positively to infant birth weight.

Explanation:

The equation you presented is a form of a multiple regression model where 'bwght' is the dependent variable (infant birth weight), and 'cigs' and 'faminc' are independent variables representing the number of cigarettes smoked and family income, respectively. The terms 'b0', 'b1', and 'b2' are the model's parameters. In the context of this model, 'b2' represents the change in the infant's birth weight for a one-unit change in family income, holding all else constant.

The most likely sign for 'b2' is positive. This is because higher family income is generally associated with better access to prenatal care and nutrition which in turn positively impact the infant's birth weight.

Learn more about Multiple Regression here:

brainly.com/question/32589643

#SPJ3


Related Questions

Question #2In general, what is a business's most valuable resource?O ToolingO MoneyO BuildingsO Employees
Packaging Solutions Corporation manufactures and sells a wide variety of packaging products. Performance reports are prepared monthly for each department. The planning budget and flexible budget for the Production Department are based on the following formulas, where q is the number of labor-hours worked in a month: Cost Formulas Direct labor $16.30q Indirect labor $4,100 + $2.00q Utilities $5,100 + $0.50q Supplies $1,300 + $0.40q Equipment depreciation $18,100 + $2.50q Factory rent $8,500 Property taxes $2,700 Factory administration $13,300 + $0.60q The Production Department planned to work 4,200 labor-hours in March; however, it actually worked 4,000 labor-hours during the month. Its actual costs incurred in March are listed below: Actual Cost Incurred in March Direct labor $ 66,780 Indirect labor $ 11,680 Utilities $ 7,590 Supplies $ 3,190 Equipment depreciation $ 28,100 Factory rent $ 8,900 Property taxes $ 2,700 Factory administration $ 15,050 Required: 1. Prepare the Production Department’s planning budget for the month. 2. Prepare the Production Department’s flexible budget for the month. 3. Calculate the spending variances for all expense items.
FFDP Corp. has yearly sales of $29.8 million and costs of $15.5 million. The company’s balance sheet shows debt of $55.8 million and cash of $39.8 million. There are 1,960,000 shares outstanding and the industry EV/EBITDA multiple is 9.3. What is the company’s enterprise value? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, rounded to the nearest whole number, e.g., 1,234,567.) What is the stock price per share? (Do not round intermediate calculations and round your answer to 2 decimal places, e.g., 32.16.)
An inferior good is Multiple Choice A. one whose demand curve will shift rightward as incomes rise. B. not accurately defined by any of these statements. C. one that has not been approved by the Federal Food and Drug Administration. D. one whose price and quantity demanded vary directly.
Use the following information: Beginning cash balance on March 1, $76,000. Cash receipts from sales, $304,000. Budgeted cash payments for direct materials,$137,000. Budgeted cash payments for direct labor $77,000. Other budgeted cash expenses, $43,000. Cash repayment of bank loan, $10,000. Prepare a cash budget for the month ended on March 31 for Gado Company. The budget should show expected cash receipts and cash disbursements for the month of March and the balance expected on March 31.

Type the correct answer in the box. Spell all words correctly.Which process does a court use to select a jury?
The court selects a jury from a jury pool through a process known as _____.

Answers

voir dire
Lawyers and judges select juries by a process known as “voir dire,” which is Latin for “to speak the truth.” In voir dire, the judge and attorneys for both sides ask potential jurors questions to determine if they are competent and suitable to serve in the case.

Larkspur, Inc. uses a periodic inventory system. Its records show the following for the month of May, in which 80 units were sold. Date Explanation Units Unit Cost Total Cost May 1 Inventory 34 $9 $306 15 Purchase 26 10 260 24 Purchase 40 11 440 Total 100 $1,006 Calculate the weighted-average unit cost. (Round answer to 3 decimal places, e.g. 5.125.) Weighted-average unit cost $Enter the Weighted-average unit cost in dollars eTextbook and Media Calculate the ending inventory at May 31 using the FIFO, LIFO and average-cost methods. (Round answers to 0 decimal places, e.g. 125.) FIFO LIFO AVERAGE-COST The ending inventory at May 31 $Enter a dollar amount $Enter a dollar amount $Enter a dollar amount

Answers

Answer:

The average cost will be "$201". The further explanation is given below.

Explanation:

At May 31,                              FIFO               LIFO                Average cost

The ending inventory             $220               $180                    $201

Going to end Inventory Computation together under Quarterly inventory management system will be:  

At $11 = $220

  • FIFO = 20 Units

At $9 = $180

  • LIFO = 20 Units
  • Average Cost = 20 Units  

$10.06 = $201.2 i.e $201.

Loki, Inc. and​ Thor, Inc. have entered into a​ stock-swap merger agreement whereby Loki will pay a 39% premium over​ Thor's pre-merger price. If​ Thor's pre-merger price per share was $42 and​ Loki's was $51​, what exchange ratio will Loki need to​ offer?

Answers

Answer: 1.15

Explanation:

Premium = 39%

Thor's share price = $42

The compensation to shareholders will be:

= $42 + ($42 × 0.39)

= $42 + $16.38

= $58.38

Loki's share price = $51

We then calculate the exchange ratio which will be:

= $58.38 / $51

= 1.15

Loki will need to offer an exchange rate of 1.15.

9) Selected information regarding a company's most recent quarter follows (all data in thousands). 9) _______ Direct labor $540 Beginning work in process inventory $330 Ending work in process inventory $420 Cost of goods manufactured $1620 Manufacturing overhead $830 What was the cost of direct materials used for the quarter

Answers

Answer:

Direct material= $340

Explanation:

Giving the following information:

Direct labor $540

Beginning work in process inventory $330

Ending work in process inventory $420

Cost of goods manufactured $1620

Manufacturing overhead $830

To calculate the direct material used in production, we need to use the following formula:

cost of goods manufactured= beginning WIP + direct materials + direct labor + allocated manufacturing overhead - Ending WIP

1,620= 330 + DM + 540 + 830 - 420

Direct material= $340

Select True or False for each of the following statements about ID requirements.True False
You are required to request and obtain a valid form of photo identification from a customer at the beginning of the
transaction or when prompted by the register.
If a customer tries to avoid giving you their ID, you can still go through with the transaction.
You must not accept a post office box as a physical address when processing a financial service transaction.
Submit >

Answers

In a financial service transaction, it is required the customer provides a valid form of photo identification (true), it is not possible to proceed without an identification (false), and the real physical address of the customer is required (true).

A financial service transaction is a service that allows customers to send money or receive money. This service has become quite popular in the last years, and many banks around the world offer it.

Moreover, there are specific rules and protocols for financial transactions as identity theft and fraud are possible. These rules include:

  • Asking customers for a valid form of photoidentification such as showing their ID to prove the identity of the customer
  • Asking the customer for his ID and refusing to continue with the transaction if the ID is not shown or the customer refuses to give necessary information to validate his/her identity
  • Asking for the physical address of the customer and not accepting a general address or a post office box address

Based on this, the first statement is true, the second one is false and the third one is true.

Learn more in: brainly.com/question/24730931

Maria's Food Service provides meals that nonprofit organizations distribute to handicapped and elderly people. The following is her forecasted income statement for April, when she expects to produce and sell 3,000 meals. Amount Per Unit Sales revenue $ 18,000 $ 6.00 Costs of meals produced 13,500 4.50 Gross profit $ 4,500 $ 1.50 Administrative costs 2,100 0.70 Operating profit $ 2,400 $ 0.80 Fixed costs included in this income statement are $4,500 for meal production and $600 for administrative costs. Maria has received a special request from an organization sponsoring a picnic to raise funds for the Special Olympics. This organization is willing to pay $3.50 per meal for 300 meals on April 10. Maria has sufficient idle capacity to fill this special order. These meals will incur all of the variable costs of meals produced, but variable administrative costs and total fixed costs will not be affected. Required: a. What impact would accepting this special order have on operating profit? (Select option "higher" or "lower", keeping Status Quo as the base. Select "none" if there is no effect.)

Answers

Answer:

See explanations below

Explanation:

Kind find attached solution. Please note that 3,300 units was used for the alternative.

Other Questions