Based on past data, it is known that about 20.5% of people smoke cigarettes. Suppose we take a sample of 100 people currently and find that only 12% smoke cigarettes. We want to see if there is evidence that the percentage of people who smoke cigarettes is decreasing. a. If I wanted to control my margin of error and set it to 3% with 99% confidence, what sample size would I need to take instead of the 100? b. Using my original sample size of 100, what would be the 99% confidence interval for the population proportion?

Based on past data, it is known that about 20.5% of people smoke cigarettes. Suppose we take a sample of 100 people currently and find that only 12% smoke cigarettes. We want to see if there is evidence that the percentage of people who smoke cigarettes is decreasing. a. If I wanted to control my margin of error and set it to 3% with 99% confidence, what sample size would I need to take instead of the 100? b. Using my original sample size of 100, what would be the 99% confidence interval for the population proportion?

Name: Please Answer E-G and include FOUR decimal places! thank you 2. Based
Uploaded: 2024-03-20T06:46:03.000Z
Channel: Bartleby
Description: Please Answer E-G and include FOUR decimal places! thank you 2. Based on past data, it is known that about 20.5% of people smoke cigarettes. Suppose we take a sample of 100people currently and find that only 12% smoke cigarettes. We want to see if th

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: hat is the time 100 hours after 7A.M?

A: Given: Time = 7AM After 100 hours

Q: A cylinder has a volume of 1373.436 cubic inches. If the radius is 9 inches, how many inches is its…

Q: 22 foot tree casts an 8 foot shadow. How long is the diagonal distance from the ground to the top of…

A: Given:

Q: A psychologist wants to know how the size of social support networks change during early childhood.…

A: Given,

Q: sample of 150 married women determined that 127 are happy in their marriage. A sample of 150 married…

A: The proportion is calculated by number of favorable event and the total sample size. Sample…

Q: What is the p-value?

Q: 1111 8. **

A: 1+12+14+16+18+.........+1n

Q: 2 qt = ---------pt

Q: A car travels at 62 miles per hour (MPH). Find the time necessary to travel 447 miles rounded to 1…

A: We have to find the time necessary to travel 447 miles.

Q: Determine the area of the shaded region in the following figure. y = 9x Ay=x² - 10 The area of the…

Q: Write a short note on average.

A: Mean (average): The arithmetic mean (also called the average) is the most commonly used measure of…

Q: ahat is measure of dispersion? explain how it does.

A: Measure of dispersion is part of Descriptive Statistics

Q: A bacteria culture tripes every 12 minutes. What amount of time does it take for the original amount…

Q: What is the distance in miles between Sacramento CA and Las Vegas NV?

A: the distance in miles between Sacramento CA and Las Vegas NV is 564 miles (or) 908 kms

Q: The University of McMaster undergraduate program is growing at a rate of 3% each year. The current…

A: The given values are compared with the compound interest formula. To get the number of years, find…

Q: 2. 279feet 3. 9/279 unit 9seconds per ra 27 6.

Q: Find the distance between (0,0) and (9, 12). The distance is units.

Q: Identify one product of your choice that is sold in grams/litres/kilograms In a tabular format…

A: Index number is a percentage that computes a measurement in a particular period in terms of a…

Q: The NBA Chicago Bulls lead scorer Zach Levine played in 58 games in the 2020-21 season averaging…

A: Concept Used - The average points per game is the total number of points divided by the total…

Q: Every day, Lee rides the subway from the station by his house to the station by his work, a distance…

Q: Convert a speed of 40 meters/second into miles/hour. Report to the nearest decimal (no decimals 1000…

Q: Find the temperature at which the Celsius measurement and the Fahrenheit measurement are the same…

A: Find the temperature at which the Celsius measurement and the Fahrenheit measurement are the same…

Q: 0.97 X023

A: Follow the steps below to multiply two decimal numbers. Multiply the decimal numbers assuming those…

Q: Leon won the 100-meter dash with a time of 15.28 seconds. Alan came in second. Alan’s time contains…

A: We have to find what could be Alan’s Time in the 100-meter dash.

Q: The current US Debt as of 8/23/21 was about 28.7 trillion. Calculate how far a stack of dollar bills…

A: The length of a dollar is 15.5956 cm long and the length 28.7 trillion dollars would extend to can…

Q: Please do not give solution in image format thanku False Positives. A new brand of pregnancy tests…

A: Let p be the new brand of pregnancy tests yields a false negative p=1% n=214

Q: 4. How many times as intense as a standard earthquake is an earthquake measuring 3.1 on the Richter…

A: A= 3.1 on Richter scale

Q: tanZ= 7.1154

A: Please refer the attached image for complete solution. THANK YOU.

Q: Joshua is 137.6 cm tall on his 11th bithday. Over the past four years, he has grown 3.8 cm, 4.4 cm,…

Q: If you have to fly from JFK airport in New York to LAX airport in Los Angeles, you will fly 2,475…

A: In this question we have to find the average speed of the Plane

Concept explainers

Percentage

A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.

Algebraic Expressions

In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.

Numbers

Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.

Subtraction

Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.

Addition

Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.

Topic Video

Question

Please Answer E-G and include FOUR decimal places! thank you

2. Based on past data, it is known that about 20.5% of people smoke cigarettes. Suppose we take a sample of 100
people currently and find that only 12% smoke cigarettes. We want to see if there is evidence that the
percentage of people who smoke cigarettes is decreasing.
a. If I wanted to control my margin of error and set it to 3% with 99% confidence, what sample size would I
need to take instead of the 100?
b. Using my original sample size of 100, what would be the 99% confidence interval for the population
proportion?
c. What are the null and alternative hypotheses?
d. What is the critical value at 99% confidence?
e. Calculate the test statistic (using the sample of 100).
f. Find the p-value.
g. What conclusion would be made here at the 99% confidence level?

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

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Algebraic Operations$

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

Assume the X units are dollars. Find the units ofX-bar, s^2, s, and C.V.
Please help
While on a trip to ciudad Juarez in Mexico you notice that the posted speed limit is 85 kilometers per hour. What is the speed in miles per hour? Round your answer three decimal places. Use the fact that 1 mile = 1.609 kilometers.
Estimate /2 - ī and V101 – V100. Compare your estimates with the actual values.
A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung cancer patients. If this treatment is randomly given to 7 lung cancer patients. (Approximate your answer to two decimal places) How many average patients report Improvement with chemotherapy treatment?
Find the frequency of a musical note which is 7 half-steps above a note with frequency 260 cps. Round to the nearest whole number. (Use the formula Q-Qo*1.05946" from your notes) The frequency of the note is cps.
Hello Please help me make the correct decimal placement for 0.9854 if it is necessary to round to three decimal places as needed. Thank you for your time. Gene
Write the formula of Average speed?
A sample of 150 married women determined that 127 are happy in their marriage. A sample of 150 married men determined that 76% are happy in their marriage. If you plan to test if the percent of married women who are happy in their marriage is greater than the percent of married men who are happy in their marriage. What is the p-value? Write to 4 decimal places.
What is the unit rate of 250 miles in 5 hours
A car is driving at 75 kilometers per hour. How far, in meters, does it travel in 5 seconds? meters
The physician has ordered cephalexin 250 mg capsule orally every 6 hours for 7 days. The first dose is September 4th at 18:00 hours. When is the last scheduled dose? Identify date and time.