I need help with question 2 and 3 plz. ### Overpriced Apples: Estimating Proportion of College Students Who Think iPhones are OverpricedIn a poll of 228 college students, 176 believe that iPhones are overpriced. You are interested in estimating the true proportion of college students who think iPhones are overpriced.Below are the calculations and analyses involved, rounded to four decimal places where appropriate.#### 1. Constructing a 95% Confidence Interval**Question:**Using the information from the poll, construct a 95% confidence interval for the true proportion of college students who think iPhones are overpriced.**Answer:**The 95% confidence interval is calculated to be:\[ (0.7175, 0.8264) \]#### 2. Sample Size Calculation for a Desired Margin of Error**Question:**How many college students should you survey to estimate the true proportion of college students who think iPhones are overpriced, with 95% confidence and a margin of error of no more than 4.5%? Use the information from the poll for a planning value for $ p^* $.**Answer:**Based on the calculations, you should survey:\[ n = 333 \]#### 3. Interpretation of Confidence Interval**Scenario:**Janae is a statistics student who conducts a similar survey at her college. She constructs a 90% confidence interval for the true proportion of college students at her college who believe that iPhones are overpriced, which is found to be $ (0.354, 0.492) $.**Question:**Which of the following statements are appropriate interpretations of the confidence interval? Select all that apply.**Choices:**- A. We expect any sample proportion to be in the interval 90% of the time, on average.- B. In repeated sampling, we can expect 90% of the intervals we construct to contain the true proportion of college students at Janae's college who believe iPhones are overpriced.- C. We can be 90% confident that, on average, a new sample of the same size will give a sample proportion within the lower and upper bounds of the confidence interval.- D. We can be 90% confident that the true proportion of college students at Janae's college who believe iPhones are overpriced is contained in the interval constructed above.**Correct Answer:**- ☑ D. We can be 90% confident that the true proportion

Answered: Image /qna-images/answer/0bfa0cd8-d0d6-488f-ac57-1bdb9af0b064.jpg

Overpriced Apples - In a poll of 228 college students, 176 believe that iPhones are overpriced. You are interested in estimating the true proportion of college students who think iPhones are overpriced. Round all calculated answers to 4 decimal places where appropriate. 1. Using the information from the poll, construct a 95% confidence interval for the true proportion of college students who think iPhones are overpriced. 0.7175 0.8264 2. How many college students should you survey to estimate the true proportion of college students who think iPhone are overpriced, with 95% confidence and a margin of error of no more than 4.5%? Use the information from the poll for a planning value for p*. n = 333

Overpriced Apples - In a poll of 228 college students, 176 believe that iPhones are overpriced. You are interested in estimating the true proportion of college students who think iPhones are overpriced. Round all calculated answers to 4 decimal places where appropriate. 1. Using the information from the poll, construct a 95% confidence interval for the true proportion of college students who think iPhones are overpriced. 0.7175 0.8264 2. How many college students should you survey to estimate the true proportion of college students who think iPhone are overpriced, with 95% confidence and a margin of error of no more than 4.5%? Use the information from the poll for a planning value for p*. n = 333

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: O D 6) Simplify. 625 256 O O O (

Q: | 7zy²z² - 64 zTzy? 4

Q: Simplify: 48 А. 4-32 В. 4-2 С. 44 D. 412

A: The given expression is 484-4.

Q: 14. 5 in. 4 in. 5 in.-

A: We have to find x

Q: Solve the following initial value problem. y"' - 2y" + 5y' = 156 e 4x. y"(0) = 56, y'(0) = 16, y(0)…

Q: 3. What is the perimeter and area of the figure at the right?

A: Recall: Area of the triangle = 12×Base×Height Perimeter of triangle = sum of all sides Area of the…

Q: g) 5 d) ½ × 3 = 58 || 4 11

A: NOTE: Refresh your page if you can't see any equations. . cancel out 2

Q: 2. Find the perimeter. 3x +2x-4 4x -16 2 The

Q: Which would be true knowing the information given in the diagram? C O LA ZB О ВС АВ O LA LC AB AC

Q: If 8x - 2 = 4 - 8x then r =

Q: the result when 2x + 3x2-6x - 16 is divided by a -2?

A: Given: Px=2x3+3x2-6x-16, gx=x-2

Q: Jonathan wants to determine the area of this stop sign. What answer should he come to? STOP 90…

A: Given that The stop sign is the form of octagon Then to find the area of the octagon

Q: Which of the following expresses-2/15 x 4/6 in simplest form? a. -12 /10 b. -24/10 8. c. -72/10 d.…

A: Simplest form will be

Q: 1) S R ? 135° T e

A: Parallelogram QRST Given m∠T=135° To find: m∠R

Q: 4. What is meant by field complaint?

Q: 9. ad- bc-3 10. de - ab-7 11. ac-5b+4a 12. bc - 8a + 5b

A: We are going to solve only the first three questions and for the remaining question post the…

Q: 8. If APQR ~ ATSR, find SR. 2х - 1 60 P. R 4х - 26 38

A: The ratio of all the corresponding sides in similar triangles is consistent.

Q: For 8 and 9, DE is a midsegment of AABC. Find the value of n. 8. 9. 36 12n n+ 7 3n + 12 C

A: Here to find the value of x and n in the given triangles Theorem 1: the line joining the mid…

Q: П. Solve the following. If U = {1,2,3,4,5,6,7,8,9,10,11,12,13}, A = {1,2,3,4,5,6,7,8,9}, B=…

A: Given U={1,2,3,4,5,6,7,8,9,10,11,12,13}A={1,2,3,4,5,6,7,8,9}B={1,2,3,7}C={1,2,4,8,9}D={1,4,8,9}

Q: 5. Flnd the LCM of 15x y and 3r²y. O 18r*y O 30x?y? O 152 y? O 45a*y

A: Here we have to find the LCM of 15x2y and 3x2y2 .

Q: The Dower qvgilable on a sata|lita, G ong in Watts, is Qiven by P=406 0.008+

Q: Simplify. 18

A: NOTE: Refresh your page if you can't see any equations. .

Q: find dy jaz. Ч сев +77012-

A: Solve for dy/dt

Q: Simplify V 36x y as much as possible. O 62 y /Ty .7, O 6xy /2y 0 6 22y

A: To simplify the expression as much as possible

Q: Write up the following neatly and completely on separate paper. 1. A motorboat starts out 20 miles…

Q: 4. Complete the table: 14 77 5. 10 35

Q: Q3 Sketch and evaluate ²x²dx

A: 3) Given that ∫12x2dx

Q: Classify the following PDE: a. 2 Uxx = Uxy - 4Uy อน b. əx² อน a²u ฮิน + +4+3+u = 0 əxəy ay² ax ду

Q: b. 11 feet 10 inches = d. 12 yards 2 feet = 18 yards 9 feet = 5 yards 2 feet = inches feet feet…

A: We want to convert the given units.

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

I need help with question 2 and 3 plz.

### Overpriced Apples: Estimating Proportion of College Students Who Think iPhones are Overpriced

In a poll of 228 college students, 176 believe that iPhones are overpriced. You are interested in estimating the true proportion of college students who think iPhones are overpriced.

Below are the calculations and analyses involved, rounded to four decimal places where appropriate.

#### 1. Constructing a 95% Confidence Interval

**Question:**
Using the information from the poll, construct a 95% confidence interval for the true proportion of college students who think iPhones are overpriced.

**Answer:**
The 95% confidence interval is calculated to be:

\[ (0.7175, 0.8264) \]

#### 2. Sample Size Calculation for a Desired Margin of Error

**Question:**
How many college students should you survey to estimate the true proportion of college students who think iPhones are overpriced, with 95% confidence and a margin of error of no more than 4.5%? Use the information from the poll for a planning value for $ p^* $.

**Answer:**
Based on the calculations, you should survey:

\[ n = 333 \]

#### 3. Interpretation of Confidence Interval

**Scenario:**
Janae is a statistics student who conducts a similar survey at her college. She constructs a 90% confidence interval for the true proportion of college students at her college who believe that iPhones are overpriced, which is found to be $ (0.354, 0.492) $.

**Question:**
Which of the following statements are appropriate interpretations of the confidence interval? Select all that apply.

**Choices:**
- A. We expect any sample proportion to be in the interval 90% of the time, on average.
- B. In repeated sampling, we can expect 90% of the intervals we construct to contain the true proportion of college students at Janae's college who believe iPhones are overpriced.
- C. We can be 90% confident that, on average, a new sample of the same size will give a sample proportion within the lower and upper bounds of the confidence interval.
- D. We can be 90% confident that the true proportion of college students at Janae's college who believe iPhones are overpriced is contained in the interval constructed above.

**Correct Answer:**
- ☑ D. We can be 90% confident that the true proportion

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

4. Find BD. F B. 6. BD = 8 b. BD = 16 a. с. BD = 10 d. BD = 5
What is the expression in scientific notation? (7 x 10-12)(4 x 105)? O A. 2.8 x 10-6 B. 28 x 10 7 OC. 1.1 x 10-6 O D. 2.8 x 10 59
Please box answers and write it in the same format of the question.
What the name of the shape is it SSS,SAS,ASA, AAS, HL
dim(M24) 8 4 2 6. None
Solve. f = wsz, for z
Could I pls get help
5. Simplify (-3c 3w³ )³ OA-9w² OB.-27cw Ос O.D. 215 INAMIN
Please use the given information to answer questions 5