Numerade

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According to a survey in a country, 20% of adults do not own a credit card. Suppose a simple random sample of 900 adults is obtained. Complete parts (a) through (d) below. (a) Describe the sampling distribution of $\hat{p}$, the sample proportion of adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of $\hat{p}$ below. A. Not normal because $n \le 0.05N$ and $np(1-p) < 10$ B. Approximately normal because $n \le 0.05N$ and $np(1-p) < 10$ C. Approximately normal because $n \le 0.05N$ and $np(1-p) \ge 10$ D. Not normal because $n \le 0.05N$ and $np(1-p) \ge 10$ Determine the mean of the sampling distribution of $\hat{p}$. $\mu_{\hat{p}} = \boxed{0.20}$ (Round to two decimal places as needed.) Determine the standard deviation of the sampling distribution of $\hat{p}$. $\sigma_{\hat{p}} = \boxed{\phantom{0.000}}$ (Round to three decimal places as needed.)

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Above a certain substrate concentration, the rate of an enzyme-catalyzed reaction drops as the enzymes become saturated. Which would lead to a faster conversion of substrate into product under these saturated conditions? Group of answer choices None of the responses are correct increasing the substrate concentration lowering the temperature by a few degrees an increase in concentration of enzyme The second, and third listed responses are correct.

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positive charge q=7.47 pC is spread uniformly along a thin nonconducting rod of length L=16.0 cm. Point P is a distance R=4.50 cm from the rod along its perpendicular bisector. (a) What is the magnitude of the electric field produced at P ? N/C (b) What is its direction? ° (counterclockwise from the positive x axis)

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What are the resulting coefficients when you balance the chemical equation for the combustion of ethane, C2H6C2H6? In this reaction, ethane is burned in the presence of oxygen (O2O2) to form carbon dioxide (CO2CO2) and water (H2OH2O). ____C2H6(g)+____O2(g)→____CO2(g)+____H2O(g)

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Question 3 2 pts Josie was born a biological male but felt at a very early age that he was really a female. What is Josie's story an example of? Poor Parenting Gender Identity Gender Dysphoria Gender Roles Gender Schemas

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2. (10 points) Consider the initial value problem $\frac{dy}{dt} = \frac{-t + \sqrt{t^2 + 4y}}{2}$, $y(2) = -1$. (a) Show that both $y_1(t) = 1 - t$ and $y_2(t) = -t^2/4$ are solutions to the initial value problem. (This means showing two things: that the function satisfies the DE and satisfies the IC.) (b) Explain why the existence of two solutions to the problem does not contradict the Uniqueness Theorem.

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Quaternary ammonium compounds are a very common disinfectant group, choose the one from the following that belongs to this class Question 1 options: Roccal Mikro-Bac Sporociden Javex

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The question ""What is the plan for keeping underlying technologies up to date?"" refers to__________. A. IT principles B. IT architecture C. IT Infrastructure D. Business application needs E. IT investment and prioritization

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To keep players interested, many games employ a strategy called intermittent reinforcement, in which players are surprised with what?

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In an E. coli culture, the concentration is 6.6 x 10^6 cfu/mL. You serially dilute this suspension as follows: 10^-2, then 1/20, and finally 10^-1. If you then plate 0.2 mL of the final dilution, how many CFU would you expect to find following incubation? Question 4 options: 6.8 x 10^6 x 10^-2 x 1/20 x 10^-1 6.8 x 10^6 x 10^-2 x 5 x 10^-2 x 10^-1 x 0.2 6.8 x 10^-6 x 10^-2 x 1/20 x 10^-1 x 0.2 6.8 x 10^6 x 10^2 x 20 x 10 x 0.2

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colleen l.