Please show all steps:
A: Suppose that 90% of adults with allergies report symptomatic relief with a specific medication. If the medication is given to 10 new patients with allergies, what is the probability that it is effective in exactly six?
B: A small voting district has 110 female voters and 90 male voters. A random sample of 10 voters is drawn. What is the probability exactly 8 of the voters will be female?
C: A deck of cards contains 30 cards: 10 red cards and 20 black cards. 5 cards are drawn randomly without replacement. What is the probability that exactly 3 red cards are drawn?
D: The bivariate probability distribution of X and Y is given in the table below.
| x | 2 | 4 | 6 |
| 3 | .1 | .2 | .1 |
| 5 | .15 | .25 | .2 |
What is the conditional probability that X=3 given that Y=2?
Are X and Y independent? Explain
In: Statistics and Probability
Halloween is just around the corner, but it will be hard for the
kids to go out for trick-or-treats or adults to go for Halloween
night party because of the COVID-19 pandemic. According to the
National Retail Federation (NRF) is U.S., in 2019, Americans
planned to spend a near-record $8.8 billion on Halloween, the third
most expensive Halloween postrecession.
a) What can you expect about the Halloween expenditures this year?
Will it go up or down or remain the same? Why?
b) What other concepts from economics you can apply to Halloween?
State and briefly explain all.
In: Economics
As a researcher, you are curious if people who eat vitamins have more energy. To assess this question, you will calculate a confidence interval for the following data. The average energy on a scale of 1-20 in the general population is μ (mu) = 13, with σ (sigma) = 3.5. You recruit 36 people who eat vitamins and assess their energy. This sample has an average of xbar = 14.
a. State the null and alternative hypotheses.
b. Find the corresponding critical z-value for Type I error rate (alpha) of α = 0.05.
c. What level of confidence do you have?
d. Please calculate the confidence interval for these data.
e. Would you retain or reject the null hypothesis? Explain your answer based on the confidence interval.
f. In everyday language, what do these results tell you about the research question?
In: Statistics and Probability
Research Project on Faithfulness and Committed Relationships in College
#1. Can you complete the following on now deciding which two articles seem the most interesting/relevant to you about your research topic (above) using psychINFO (apa.org)and read those. Put the empirical articles references (citation)for the article you are summarize in APA style.
a) Describe, in several sentences, what are the main points given in the introduction of the article?
In one or two sentences – summarize the main point of what the author(s) is saying in the intro regarding what past research on the topic has found.
Then, in one or two sentences – summarize the main point of what
the author(s) is saying in the intro regarding what past research
has yet to examine on the topic as well as the purpose of the
topic.
Then, where applicable – give the researcher’s hypothesis?
(Whenever the researcher gives an actual hypothesis, be sure to
summarize the actual hypothesis)
Describe, in several sentences, what are main points given in the method section of the article?
Describe, in several sentences, what are the main points given in the results section of the article? Be sure that you give the main results that relate to the hypothesis --- where applicable.
Describe, in several sentences, what are the main points given in the discussion of the article? What future research does the author(s) suggest?
In: Psychology
Six cards are identical except that both sides of two cards are red, both sides of three cards are black, and the sixth card has one red side and one black side. One of the six cards is chosen at random and placed on a table. If the upper side of the chosen card is red, what is the probability that the bottom side is black?
In: Math
Suppose 4 blue and 4 red chips are in a hat. Each time we draw a chip we look at its color. If it is blue, we replace it along with one new blue chip. If it is red, we replace it along with two new red chips. What is the probability that, in successive drawing of chips, the second one is blue?
In: Statistics and Probability
Write a VHDL code to use two ultrasonic sensors as detectors, placed one at entrance and other at exit of a parking space. When the ultrasonic detects a car, use a counter to count the cars entering and decrement when a car exits. There is an RGB led place at each gate (entry &exit) which is used to indicate opening and closing of gates. Entry gate LED turns green when car detected and space available. LED stays red when no car detected, or car detected but no space available. Exit LED stays red but turns green when car detected by ultrasonic.
In: Electrical Engineering
An 8-month-old girl who is brought in by her parents because of fever and fussiness. Her appetite is poor and she refuses to eat or take most fluids. On physical examination, she has a bright red right TM, dull without mobility or landmarks. Her left TM is pearly gray and mobile. She has yellow nasal discharge; cervical adenopathy and chest clear to auscultation. Her diagnosis is right otitis media.
a. What will you prescribe, for how long, and what dosage?
b. Discuss pathophysiology of the disease or physiology of the organism that the drug(s) are addressing.
c. Rationales for using the specified drug(s), emphasize the APRN role in the assessment, diagnosis, and pharmacological interventions of clients.
d. Indications, contraindications of the drug(s)
e. List the prices of three drugs to treat the selected problem from two different pharmacies.
f. Describe in detail the instructions the patient should receive for the selected drug(s). Write this at a fifth-grade level.
In: Nursing
The suicide rate in a certain state is 1 suicide per 100,000 inhabitants
per month. In a city with population 400,000, and the probabilities of the
following events. Your answers should be numerical; if they are approximate,
explain your approximation.
(a) There will be 8 or more suicides in one month.
(b) What is the probability that in a given year there will be at least two months with 8 or more suicides?
In: Statistics and Probability
In: Operations Management