A psychologist obtains a random sample of 20 mothers in the first trimester of their pregnancy. The mothers are asked to play Mozart in the house at least 30 minutes each day until they give birth. After 5​ years, the child is administered an IQ test. It is known that IQs are normally distributed with a mean of 100. If the IQs of the 20 children in the study result in a sample mean of 104.4 and sample standard deviation of 15, is there evidence that the children have higher​ IQs? Use the α=0.10 level of significance.

P value =

53. The medication order is to mix 18 units of oxytocin in 650 mL normal saline. Start infusion at 20 mL/hr. Increase by 5 mL every 10 minutes until uterine contractions are 2 to 3 minutes apart. Do not exceed 45 miliunits/min. Maintain total IV fluid volume at 100 mL/hr.

How many miliunits/min will the patient receive in the first 10 minutes?

Answer ________________9.23

Explain to me how the answer comes up

Write a Python graphics program that draws the following shapes:

• window size: 250 x 250 pixels with window title with your name

• big circle, 50 pixels radius with center at (125, 125)

• two green circles, 10 pixels radius; first one centered at (113, 113) and second centered at (137, 113)

• one red line, from (100, 150) to (150, 150)

Then answer this, what do you see? (make this a comment in your code)

Ammonium nitrate, NH4NO3, is used as a N fertilizer and has the potential to degrade water quality due to its solubility. The US EPA mean contaminant level (MCL) for nitrate concentrations in drinking water is 10 mg NO3 L-1.

First, calculate the Ksp for NH4NO3. Express your answer as a number rather than in a power of 10 (e.g., 100 instead of 10^2). The Ksp does not need units.

Next, calculate the molarity of the equilbirum concentration of NO3. Units required.

1. A company’s second year operations can be summarized as follows:

Revenues: $110 000

Expenses (except CCA): $65 000

Its capital asset purchases in the first year totalled $100 000, with none in the second year. With a CCA rate of 20 percent and a tax rate of 55 percent, how much income tax did it pay?

Q4 ANSWER:

Second year CCA (5 points):

………………………………………………………………………….

Net income (5 points):

………………………………………………………………………….

Taxes paid (5 points):

………………………………………………………………………….

C++ , Write an iterative routine that will have 2 queues. Loop for 100 times and in the loop roll two die and place the first result into the queue1 and second into queue2. Then dequeue the rolls one at a time from each, printing each pair, and count how many times two rolls either add up to 7 or are doubles (i.e. same value). After the queues are empty, print out the number of 7s and doubles.

Assume srand has already been done.

1. Derive expressions for the differential and common mode gains of the amplifier and thence derive the common mode rejection ratio (CMRR). Explain the design steps necessary to achieve a high CMRR.

2. If the differential gain of the first stage of the amplifier is 100 and the -& resistor values associated with the second stage are R1= 15k, R2= 10.5k, R3= 200k and R4= 101k, calculate the CMRR of the whole system.

3. Explain the operation of a Lock – in amplifier system of which the output is independent of the phase of the measurand.

What incentive did the Affordable Care Act offer to encourage states to expand Medicaid eligibility?

Two possible power line routes are under consideration. Find the equivalent uniform annual cost for each if the interest rate is 7%. Which route should be chosen?

Mendez Corporation has 10,000 shares of its $100 par value, 7 percent cumulative

preferred stock outstanding and 50,000 shares of its $1 par value common stock outstanding.

In Mendez’s first four years of operation, its board of directors paid the following

cash dividends: 2011, none; 2012, $120,000; 2013, $140,000; 2014, $140,000.

Determine the dividends per share and total cash dividends paid to the preferred and

common stockholders during each of the four years.