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chelsea anderson

chelsea a.

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Use Sheet 3 of the Excel file to answer the following questions. A school administrator believes that the mean class GPAs for a given course are higher than the preferred mean of at a significance level of , and checks a randomly chosen sample of classes. Create a histogram, and calculate , the -statistic, and the -value.From the histogram, can normality be assumed? Since the -value isevidence exists that the mean GPA is greater than .than the significance level , the null hypothesis. Pick Ex: 1.234 Pick Pick

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43. Signaling by which hormone in the liver of patients with type 1 diabetes has the largest effect on the hyperglycemia observed in those patients? O Glucagon

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How does the pointing gesture develop according to Vygotsky? What is the process that drives the emergence of this new ability? How is Vygotsky's explanation different from Piaget's? According to Vygotsky, what are higher psychological functions? How do they develop? What are cultural tools and what is their role in the development and functioning of higher psychological functions? On what basis does Ulric Neisser debunk Brown & Kulik's "now print" theory of flashbulb memory formation? Describe how Neisser's theory accounts for the impressive consistency of the elements of flashbulb memory. What is the role of cultural tools in the development of flashbulb memories? Explain how both Vygotsky's and Neisser's works reveal that the human mind develops and functions from and for social-cultural purposes.

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What is the syntax for doing a package install using rpm?

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Compute the dot product of the vectors v and w, and find the angle between the vectors. v = -4i - j and w = -i - 4j v \cdot w = \boxed{} (Simplify your answer.) Find the magnitude of the vectors. $|v| = \boxed{} and |w| = \boxed{} $(Type exact answers, using radicals as needed.) The angle between the vectors is $\boxed{}^\circ$. (Type your answer in degrees. Do not round until the final answer. Then round to the nearest tenth as needed.)

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Which of the following among A-D is false? Group of answer choices Analytical epidemiology: primarily concerned with finding the causes of infection or disease in order to identify disease interventions, such as the work of Florence Nightingale. Morbidity rate: for any infectious disease, it should be higher than the mortality rate Nationally notifiable disease: the common cold is one of these Microbial antagonism: the human microbiota provides this to help keep pathogens away None of A-D is false; all are true

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Find the set of all quadruples λ1, λ2, λ3, λ4 ∈ ℝ such that the most general system of two linear equations in x1, x2 ( λ1x1 + λ2x2 = b1 and λ3x1 + λ4x2 = b2) has a unique solution.

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INSTRUCTIONS: This homework is 10 points total. SHOW ALL YOURWORK ON SEPARATE PAGES FOR EACH QUESTION. This homework is intended to be solved individually. Due date is 28/06/2020 at 5:00 p.m. Please submit all your work electronically through blackboard or A high quality scanner of your handwriting. Q1. For a chi-squared distribution, find (a) $X_{0.025}$ when $v = 15$; (b) $X_{0.1}$ when $v = 7$; (c) $X_{0.05}$ when $v = 24$. Q2. The stretching material is affected by specific chemical levels. When low chemical level is used, the true mean is 55, and when high chemical level is used, the mean is 60. The standard deviation of stretching is 4 regardless of chemical level. If two random samples of size 16 are taken, find the probability that $X_{high} - X_{low} \leq 2$. Q3. A customer spending waiting time at Alahwal_Jeddah check-in counter is a random variable with mean 8.2 minutes and standard deviation 1.5 minutes. Suppose that a random sample of n = 49 customers is observed. Find the probability that the average time waiting in line for these customers is: (a) Less than 9.3 minutes (b) Between 5 and 10 minutes (c) Less than 7.5 minutes Q4. A consumer electronics company is comparing the brightness of two different types of picture tubes for use in its television sets. Tube type A has mean brightness of 100 and standard deviation of 16, and tube type B has unknown mean brightness, but the standard deviation is assumed to be identical to that for type A. A random sample of n = 25 tubes of each type is selected, and $\bar{X}_A - \bar{X}_B$ is computed. If $\mu_B$ equals or exceeds $\mu_A$, the manufacturer would like to adopt type B for use. The observed difference is $\bar{X}_A - \bar{X}_B = 3.5$. What decision would you make, and why?

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For the signal $x(t)$ shown below, sketch the following and indicate what operation is performed. 4- 2 $x(t)$ 0 2 (a) $x(t - 4)$ (b) $x(-t)$ (c) $x(2 - t)$ (d) $x(2t)$ (e) $x(t/1.5)$ (f) $\frac{dx(t)}{dt}$ HINT: Derivative of a function at the jump discontinuity is equal to an impulse of strength equal to the amount of discontinuity.

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Write a program that takes two numbers from the Java console representing, respectively, an investment and an interest rate (you will expect the user to enter a number such as 0.065 for the interest rate, representing a 6.5% interest rate). Do not prompt anything from the user before reading in the investment and interest rate. Your program should calculate and output (in $ notation) the future value of the investment in 5, 10, 15, and 20 years using the following formula: future value = investment * (1 + interest rate)^year. We will assume the interest rate is an annual rate and is compounded annually. Use NumberFormat to output the $: https://docs.oracle.com/javase/7/docs/api/javax/swing/text/NumberFormatter.html. Only display the output like this: Year 5: $31,907.04 Year 10: $40,722.37 Year 15: $51,973.20 Year 20: $66,332.44 Substituting the correct amount for the value of the investment after the given period. The program must ignore any input other than decimal numbers. Scanner s = new Scanner(System.in); while(!s.hasNextDouble()) s.next(); Lastly, don't forget to take out the package when you submit to mimir. Pay attention to the spacing in the output. Skeleton Code: /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package interestrate; import java.util.Scanner; import javax.swing.text.NumberFormatter; import java.text.NumberFormat; import java.util.Locale; /** * * @author random */ public class InterestRate { /** * @param args the command line arguments */ public static void main(String[] args) { NumberFormat nf = NumberFormat.getCurrencyInstance(Locale.US); Scanner s = new Scanner(System.in); //fill in the logic here //Display like this exactly System.out.println("Year " + + ": " + nf.format()); } }

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