Category: Mathematics Homework Help

Case Study: Statistical Inference

Overview

The research department of an appliance manufacturing firm has developed a solid-state switch for its blender that the research department claims will reduce appliance returns under the one-year full warranty by 3%–6%. To determine if the claim can be supported, the testing department selects a group of the blenders manufactured with the new switch and a group with the old switch and subjects them to a normal year’s worth of wear. Out of 250 blenders tested with the new switch, nine would have been returned. Sixteen would have been returned out of the 250 blenders with the old switch. As the manager of the appliance manufacturing process, use a statistical procedure to verify or refute the research department’s claim.

There is a short question about probability. Please providing the quality work with detailed process in time. Showing you bids if you think you can handle it.

I’m working on a algebra question and need support to help me understand better.

Directions: First write an equation to solve each problem and then solve the equation. 

1.        –12 = 2 + 5x + 2x

2.        x + 3 – 3 = –6

3.        –22 = 3 – 2x – 3x

4.        –4x + 10x – 30 = –3x – 39

5.        9.2x + 5.514 = 158.234

6.        –8.38x + 10.71 = 131.382 + 5.98x          (Round to hundredths place)

7.        x – 2.3x + 5 = 4.9                                    (Round to hundredths place)

8.        54.25 = x + 0.025x                                  (Round to hundredths place)

9.  Tyler has 36 pieces of candy he wants to share with his 4 friends.  He first keeps 8 pieces for himself, and then splits the rest among his friends. How many pieces of candy does each friend get?

10.  Krystal’s meal was $13.25 before tax and tip.  If sales tax is 6.25% and she left a 20% tip (before sales tax), what was the final cost of her meal?

11.   A company buys a new car for $13,500.  During the first year, it will depreciate 11.3% of its original value.  What will be its value at the end of the year?

12.  Jackie’s car depreciated in value 12.5% over the past year.  The value of the car this year is $30,253.12.  What was the value of the car last year?  Round the answer to the nearest whole dollar.

13.   Between the years 2000 and 2006, the average cost for auto insurance nationwide grew 27%, to $867.  What was the average cost in 2000?  Round to the nearest dollar.

14.  The balance in a savings account grew by 5% in one year to $5,512.50.  What was the balance at the beginning of the year?

15.  There are 42 members in the math club this year.  This is a 20% increase from last year’s membership.  How many students were in the club last year?

You need to create an Imaginary interview( I will give you the link to a similar interview. It will guide you)

3. Interview someone working in mathematics or mathematics education from outside CDU’s College of
Education whose work connects with your topic area. This could be a researcher, school teacher or
mathematician, for example, but it might be someone who uses mathematics in their work, like an
accountant, a carpenter or a nurse. Your interview should cover their work, your topic and applications for
mathematics pedagogy. Write up the interview for your blog including your critical reflections. You can
also ask your interviewee to read and respond to your blog.

4. Describe a culturally responsive approach to mathematics pedagogy based on a critical interpretation of
your research which provides a rich and inclusive classroom learning environment for children in diverse
or specific social contexts. This does not have to be a lesson plan but should be specific about how you
might implement aspects of what you have learnt about your topic in a teaching context.
5. Include in your blog a list of references using APA 7
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conventions

1. Use the appropriate t-distribution function to answer the following questions. In your answer, please note the function used and the arguments along with the answer (e.g. using T.INV.2T(0.05, 16) = 2.12.

a. 99% of the values in a t distribution with 18 degrees of freedom will be less than or equal to ______.

b. 1% of the values in a t distribution with 10 degrees of freedom will be greater than _____.

c. 95% of the values in a t distribution with 14 degrees of freedom will be in the interval -_____ to +_____ around the center of the distribution.

d. In a t distribution with 10 degrees of freedom, the probability that t is less than 1.5 is _____%.

e. In a t distribution with 25 degrees of freedom, the probability that t is greater than 2 is _____%.

2. Consider the variable “number living together.”

a. What is the mean number of people living together off-campus?

b. What is the median number of people living together?

c. What is the standard deviation of the number of people living together?

d. Create a 95% confidence interval for the average number of people living together.

e. Fully interpret the interval: what exactly does it tell you?

3. This question concerns the variable “individual rent,” which represents the individual’s share of the rent paid for off-campus housing. Note that many survey respondents did not report their individual rent.

a. How many students in the survey reported the rent that they pay individually?

b. What are the minimum and maximum individual rents paid by students in the sample?

c. What is the average individual rent?

d. What is the standard deviation of the rent?

e. What percentage of survey respondents left this question blank? Is the fact that some students chose not to answer the question likely to bias the mean upward, downward, or not in any particular direction? Explain your answer.

4. This question asks you to consider the average cost of living off-campus.

a. Build a 95% confidence interval for the mean rent paid individually by off-campus students.

b. Use your answer to estimate how much a student living off-campus should budget each year for rent. Explain your answer.

Hi,
I need kelp with my AP STAT project
documents for this are attached

please accept if you are 100% confident. any low grade will result in a bad review and REFUND request

please accept if you are 100% confident. any low grade will result in a bad review and REFUND request

please accept if you are 100% confident. any low grade will result in a bad review and REFUND request

I’m studying for my Calculus class and need an explanation.

After following and reading all three links please post your thoughts or questions about the use of complex numbers in these applications.

Complex Number Applications

Wondering where to use Complex Numbers in the real world?

More Complex Made Simple

Why do we use complex notation in electrical circuits?
Complex Numbers in Real Life

All topics should include a graph illustrating your problem along with key points and values identified. Just arbitrarily select values that meet the given condition for your example and graph. One free graphing tool available is DESMOS Calculator

I’m working on a calculus multi-part question and need an explanation to help me understand better.

I have a 3 part question: First: determine on which intervals, the function is continuous. Second; and then for each continuity, describe it as either jump, removable, or infinite.

a) I have this as removable continuity at (2,4)

b) Jump discontinuity at x = 1

c) Infinite discontinuity at x = 0

I need support. The problem will be attached.

Please write annotated bibliography for the references provided in the final document. Here are the instructions:

Final Paper – Annotated Bibliography

Note:

An annotated bibliography is a list of citations to books, articles, and documents. Each citation is followed by a brief (usually about 150 words) descriptive and evaluative paragraph, the annotation. The purpose of the annotation is to inform the reader of the relevance, accuracy, and quality of the sources cited