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I’m working on a Mathematics question and need guidance to help me study.

In a certain population, heights (in inches) are normally distributed with a = 67 and = 3. Find the probability that a person selected at random has a height between 63 inches and 71 inches. A bookstore determines that 2/5 of the people that come into the bookstore make a purchase. What is the approximate probability that of the 54 people who come into the bookstore during a certain hour, less than 14 make a purchase? If you deposit $4500 at 5% annual interest compounded monthly, how much money will be in the account after 10 years? A lottery winner is given two options: Option I: Receive a $20 million lump-sum payment. Option II: Receive 25 equal annual payments totaling $60 million, with the first payment occurring immediately. If you can earn money at 6% interest compounded annually during that long period, which option is better? In a recent year, Ford was offering the choice of 1.9% loan for 36 months or $1000 cash back on the purchase of a $28,000 Taurus.
If you take the 1.9% loan offer, how much will your monthly payment be? If you take the $1000 cash-back offer and can borrow money at your local bank at 6% interest compounded monthly for 3 years, how much will your monthly payment be? Whichoptionismorefavorabletoyou?Signature Assignment: Examine a Social Problem for a Specific At-Risk Population: nursing assignment help services
I’m trying to study for my Psychology course and I need some help to understand this question.

Instructions

This week, you will submit your Signature Assignment. Your professor has provided feedback on the Annotated Outline you prepared for Week 6 and this should assist you in completing your final paper.

Begin by providing an overview of the social problem with which a social worker may be involved. As part of this overview, explain how elements of human rights and social justice intersect with this social problem.

Next, discuss the population you have previously selected that would require social work services related to this problem. Describe and analyze characteristics of this population such as ethnicity, health concerns, and socioeconomic class.

Explain the implications of this problem on the developmental phase of life (i.e., infancy and early childhood, middle childhood, adolescence, adulthood, or late adulthood) that you have previously selected. Your explanation should examine how an intervention, or lack thereof, might affect the individual’s life course trajectory.

Once you have presented the social problem and the selected population, explain how your studies and experience as a social worker will assist you in advocating for your clients who face this problem.

Support your assessment of human behavior in social environments by drawing upon at least five scholarly works in the discipline of social work.

Length: 10-12 pages, not including title and reference pages

Your assignment should demonstrate thoughtful consideration of the ideas and concepts presented in the course by providing new thoughts and insights relating directly to this topic. Your response should reflect scholarly writing and current APA standards. Be sure to adhere to Northcentral University’s Academic Integrity Policy.

Upload your document, and then click the Submit to Dropbox button.Complete Quiz #7
Help me study for my Statistics class. I’m stuck and don’t understand.

1. Explain in your own words why, for a continuous random variable, P(X = k) = 0 for any number k.

2. Suppose that a certain battery is advertised to last for 5 years. Suppose further that the actual life time of the battery is approximately normally distributed with a mean of 5.4 years and a standard deviation of 0.3 years. Answer each of the following:

a) Explain how the standard normal curve, Z, relates to computing the probability of a randomly selected battery lasting less than the advertised amount of time.

b) Compute and interpret the probability of a randomly selected battery lasting less than the advertised amount of time.NEED HELP URGENTLY, Needs to be done before 3pm Pacific time
Help me study for my Statistics class. I’m stuck and don’t understand.

1. (Section 8.1) The exam scores for a math exam given at a university are normally distributed with a mean of 72 and a standard deviation of 8. Suppose a random sample of 20 students is selected from all students that took the exam.

a) Determine the shape of the distribution for the sample mean,
x
¯

.

A) Normal, since the sample size is at least 30.

B) Normal, since the population is normal.

C) Uniform, since the average is always the same.

D) Not enough information is given

b) Determine the mean of the distribution for the sample mean,
x
¯

, rounded to the nearest whole number.

c) Determine the standard deviation of the distribution for the sample mean,
x
¯

, rounded to 3 decimal places.

d) Find the probability that a single student scores at least 76 on the exam, rounded to 3 decimal places.

e) Find the probability that the sample of 20 students has a mean score of at least 76, rounded to 3 decimal places.

2.(Section 8.2) The percentage of college students that change their majors before graduating is (approximately) 80%. A random sample of 500 graduating college students is obtained, and the sample proportion,

p
^

, is the proportion of the sample that changed their majors.

a) Determine the shape of the distribution for the sample proportion,
p
^

(single letter answer only).

A) Normal, since
n
⋅
p
⋅
(
1
−
p
)
≥
10

.

B) Normal, since the sample size is at least 30.

C) Uniform, since the percentage is always 80%.

D) Not enough information is given

b) Determine the mean of the distribution for the sample proportion,
p
^

, rounded to the nearest whole number.

c) Determine the standard deviation of the distribution for the sample proportion,
p
^

, rounded to 3 decimal places.

d) Find the probability that at least 420 students changed their majors using normalcdf, rounded to 3 decimal places.

e) Find the probability that less than 77% of students changed their majors using normalcdf, rounded to 3 decimal places.

3.(Section 9.1) In a random sample of 250 college students, 213 said that they enjoyed reading for fun. Construct a 95% confidence interval for the proportion of college students that enjoy reading for fun. Then find each of the following, rounded to 3 decimal places.

Lower Bound =

Upper Bound =

Point Estimate =

Margin of Error =

4.(Section 9.1) Using sample data for 350 students, a researcher, Max, determines that a 95% confidence interval for the proportion of college students that play video games regularly is (0.691, 0.713). Interpret the confidence interval in a complete sentence.

5.(Section 9.1) A researcher, Tate, wants to get a fairly accurate estimate for the proportion of students that experience high test anxiety. First, Tate needs to determine the number of students needed for a sample in order to estimate the proportion within 1%. Moreover, Tate wishes to use a 99% level of confidence.

a) Find the number of students needed for the sample (without any other information).

b) Find the number of students needed if Tate found a previous estimate that 15% of students experience high test anxiety.2 replies: nursing homework help
I don’t understand this English question and need help to study.

reply for each one of them with less than 150 words

1- This week’s diversity/inclusion article will be on the documentary “Living on One Dollar” There are billions of people all over the world living on the equivalency of $1 U.S. weekly or daily. The documentary is based on four friends Chris, Zach, Sean, and Ryan who traveled to Guatemala to experience what it is like to live on one United States dollar per day. They live in the village of Pene Blanco a community of about 300 people. They met families whom they interview and follow their daily life to see how they survive the basic living. This documentary is a great way to help raise awareness of global poverty. Hence, this documentary is a great example of what our text describes as communication and culture interrelated. The film shows that even though people grew up in different parts of the globe communication can make a big difference in how we treat others because it can help us understand other cultures on why and how they do things. As Chris stated in the documentary, its situations that holds people back, not who they are”

2- This article shows many aspects of diversity and how it has affected the head coach employment jobs for african americans in the National football league. “Keep in mind that exposure to diversity does not always lead to greater acceptance and interaction across group boundaries.” (p. 100, diversity consciousness). This quote explains very well what this article was talk about. The NFL made up this rule that whenever there are head coaching jobs open in the NFL, the commissioners/owners are required to hire at least one colored person for an interview. In my opinion, it is pretty sad that there must be a rule set in stone in order for an african american to get a chance at getting this job. Although this rule is in place, barely any of these african americans even get hired for the job anyway due to their skin tone. The article states that over the past 3 years in the NFL, there were 20 head coaching positions opened and only two were filled by black coaches. Diversity is shown in this article, but there is not really any progress with this diversity being spread in this league when it comes to coaching jobs because the outcomes are still the same, more white coaches are hired than that of black. This has been going on for years and sadly there most likely wont be any better change due to society and how owners of these large businesses and football leagues view things in order for them to gain more profit in money.

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