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cynthia leblanc

cynthia l.

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QUESTION 25 In an effort to understand how group dynamics change under duress, a research team gathers 100 people at a remote mountain location, bringing them all in by helicopter. Using carefully designed interviews, the researchers begin the lengthy process of interviewing the participants. After the second day, however, there are a dozen participants who express unhappiness and want to leave. The research team reminds them that they signed an agreement to be interviewed knowing what it entailed, that leaving is not practical, and that they need to continue with the process. The research team is failing to fulfill what golden rule of research? Oa. notifying their home institution Ob. ensuring voluntary participation Oc. obtaining informed consent Od. protecting a vulnerable population

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During cell division, from M phase in the mother cell to interphase in the resulting two daughter cells, a chromosome will usually retain the same pattern of and heterochromatin that was found in the mother cell.

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What is the standard error of M? Group of answer choices It is the sample mean. It is the sample standard deviation. It is the mean of the distribution of sample means. It is the standard deviation of the distribution of sample means.

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A marketing researcher wants to estimate the mean amount spent per year ($) on a web site by membership member shoppers. Suppose a random sample of 130 membership member shoppers who recently made a purchase on the web site yielded a mean amount spent of $59 and a standard deviation of $52. Complete parts (a) and (b) below. Identify the critical value(s). The critical value(s) is/are (Type an integer or a decimal. Round to two decimal places as needed. Use a comma to separate answers as needed.) Determine the test statistic. The test statistic, STAT, is (Type an integer or a decimal. Round to two decimal places as needed.) State the conclusion. $H_0$. There is evidence that the population mean spent by membership member customers is different from $50. b. Determine the p-value and interpret its meaning. The p-value is (Type an integer or a decimal. Round to three decimal places as needed)

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Please Solve: B.13 Derive a CMOS complex gate for the logic function f = xy + xz + yz. Use as few transis- tors as possible (Hint: Consider f).

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Find the minimum number of each molecule needed in the chemical reaction below so that no atoms are gained or lost in the process. Note that the atoms involved are carbon, hydrogen, and oxygen. $C_2H_2 + O_5 \to CO_3 + H_5O$ $C_2H_2$ molecules $O_5$ molecules $CO_3$ molecules $H_5O$ molecules

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a. How many stereocenters are present in this monosaccharide? CH$_2$OH C=O HO H HOH H- OH CH$_2$OH b. How many stereoisomers are possible for this monosaccharide? HO CH$_2$OH C=O -H H- OH H- -OH CH$_2$OH

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Q4 + VS 15V R4 12k RT 3.3k-3.9k R5 R3 12k R2 3.3k In the bridge circuit above RT is a resistive displacement transducer. Its resistance varies linearly between 3.3k for zero displacement and 3.9k for a displacement of 10 mm. Hence we expect the resistance to be 3.6k at a displacement of 5mm. The read out device is a simple moving coil meter (with FSD = 10µA) in series with a resistor R$_s$, such that the total resistance R5 = R$_{coil}$ + R$_s$ where R$_s$ is a high precision resistor chosen such R5 is the required resistance for the application. a) Calculate a total value of R5 that would result in a current of 10 µA flowing when RT = 3.9k. [5 marks] b) Using this value of R5 calculate the current that would flow when RT = 3.6k. [3 marks] c) Estimate the deviation from ideal linearity at the mid-position (b) and calculate the % non- linearity (discrepancy as % of full scale). [2 marks]

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4. From the capacitive circuit shown below, calculate the following: a. Total Capacitance ($C_t$) b. Total Charge ($Q$) c. Charge on capacitor ($C_2$) 3 µF 6 µF 4 µF 6 µF

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3. Create a script M-file in MATLAB to graph the normal distribution using the vector matrix t=0:2000 with the mean $\mu = 1000$, and standard deviation $\sigma = 50$ where the density function is defined as follows: Y = , the graph should look as bell shape

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