A software engineering firm began stocking flavored sparkling water in addition to soda in the break room. A survey found that out of 180 engineers, 45 of them switching to the sparking water. a. Determine a 95% CI. b. Determine the margin of error for the CI in part (a). Round to three decimal places.

Q: 100 students at a college were asked whether they had completed their required English 101 course,…

A: Given information: Total number of students at a collage(n)=100. Number of students say "yes"…

Q: Estimate the average by first rounding to the nearest 1,000: 1,000 2,300 2,600   2000…

A: 1,000, 2,300 2,600 By rounding to the nearest 1,000, we get 1,000 = 1,000 2,300 = 2,000 2,600 =…

Q: A survey of 78 snowmobilers revealed that 51 of them have driven under the influence of alcohol.…

A: Given data, n=78 x=51

Q: Last month, the Women's Hospital reported 123 obstetrical discharges and five deaths. (The deaths…

A:

Q: A poll of 1,750 people suggested that 56% of respondents regularly watch tv shows through streaming.…

A: Given,n=1750p=0.56q=1-0.56=0.44

Q: In 2017, 77 out of 100 Americans claimed to have read at least one book during the year. Write this…

A:

Q: A software engineering firm began stocking flavored sparkling water in addition to soda in the break…

A: Given data, n=180 x=45 sample proportion (p)=x/n= 45/180= 0.25   The z value at 95% confidence is…

Q: 109 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: Calculate the infant mortality rate (per 1000): [

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY PLZ REPOST FOR REMAINING Here given,…

Q: what is the general trend for total accident cost per man-hour?

A: The trend of the total accident cost per man-hour is positive.

Q: 104 concert-goers at the Glass House in Pomona, California were asked if they know how to play an…

A: Here it is given that- Number of concert goers  = 104 Number of concert goers who can play an…

Q: 103 students at a college were asked whether they had completed their required English 101 course,…

A: It is given that, 103 students at a college were asked whether they had completed their required…

Q: 135 students at a college were asked whether they had completed their required English 101 course,…

A: Point estimate: The population parameter which is estimated by using sample statistic is termed as…

Q: A researcher wants to find out the number of students he needs to urvey in a school provided that…

A: Given : total no pf students in a school  N=5000 with margin of error e=5%  To find sample size…

Q: Find the maximum percentage error in an approximate number –4.5

A: the relative error in approximation is  relative error =absolute errormeasured value

Q: A report says that the average amount of time a 10-year-old American child spends playing outdoors…

A: A report says that the average amount of time a 10-year-old American child spends playing outdoors…

Q: 29. At a construction site, there are boards that measure 44 Find the relative error of this…

A: Given problem:- At a construction site, there are boards that measure 4.5 Find the relative error of…

Q: Estimate the average by first rounding to the nearest 1,000:  1,000 2,300 2,600

A: Mean: Mean is an important measure of center when the data is quantitative. Mean of a data set is…

Q: The Paasche method uses the amounts consumed in the base period, qo, as weights to determine a price…

A: Every method to determine price index, use different weights.

Q: Which of the following mortality rates use the estimated total mid-year population as its…

A: 1) Crude mortality rate uses total mid year population as its denominator while other three use…

Q: 5. A metal plate is supposed to be 15.75 cm long but after it is cut, it measures 15.71 cm.…

A:

Q: se a study revealed 5*

A: Given, a study revealed 57% of all subjects possessed trait A, 28% possessed trait B, and…

Q: 110 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: The recorded total number of accidents in a 1.5km section of highway from 2016-2020 is 557. If the…

A: Use the formula for accident rate and Substitute the given datas than simplify.

Q: According to The Sydney Morning Herald, as of 1:00 p.m. June 6, 2018 (the day before Donato’s…

A: Solution: Given information: n= 7700 Sample size  p^= 0.74 Sample proportion

Q: The Laspeyres method uses the amounts consumed in the base period, qo, as weights to determine a…

A: Solution: For the contraction of price index number quantity weights are used.  If w is the weight…

Q: d) What is the predicted amount of fireworks used in 1998?   e) What is the actual fireworks used…

A: 1998 means x = 8 (1998-1990).   The predicted amount of fireworks in 1998 can be calculated as:

Q: 80 students at a college were asked whether they had completed their required English 101 course,…

A: Given: In a college 80 students completed their English 101 course with 48 students being yes. To…

Q: 1) Inspect the data and estimate the amount of blood lost due to one hookworm. (mL/day)

A: X Y (x-xbar) (x-xbar)^2 (y-ybar) (y-ybar)^2 (x-xbar)*(y-ybar) 24 12.2 -26.83333 720.02778…

Q: 138 students at a college were asked whether they had completed their required English 101 course,…

A: Given : x = 92  n = 138

Q: The purchased cost of a shell-and-tube heat exchanger with 100 m2 of heating surface area was…

A: First determine the price of 200 m2 heat exchanger. Now use the Marshall Swift Index to get the cost…

Q: A November 2018 Gallup Poll of 1075 U.S. adults found that 627 are satisfied with the total cost…

A:

Q: Calculate the incidence rate of Lupus in men older than 45 years old per 1000 population? Calculate…

A: Using the given table we have to Calculate the incidence rate of Lupus in men older than 45 years…

Q: Calculate the crude mortality rate (per 100000): [/

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION ONLY AS YOU HAVE POSTED MUTIPLE DIFFERENT…

Q: Consider the same set up as in Question 1. What is the price of wealth if Djokovic wins the US Open?…

A: Incomplete question

Q: 13. The araler takt Is $7950IO on a stene015Ound SyrtemipuK chase of 7645. Find the sales tar rate..

A: To find the sales tax rate

Q: As the owner of a business, Karen needs fire insurance. Her building is worth $724,000 and the…

A: The complete solution is given below in the attachment file

Q: A die with six sides is rolled three times. What is the chance that the ace (single dot) comes up…

A:

Q: For a survey based on 1,900 adults, what is the conservative margin of error as a proportion? (Round…

A: MOE

Q: Calculate the infant mortality rate (per 1000):

A: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION , AS YOU HAVE POSTED MULTIPLE QUESTION PLZ…

Q: Suppose that an actuary for an insurance company found that the life expectancy of people (living in…

A: Given that, μ=78,σ=5 Let X denote the life expectancy of people Assume that X follows normal…

Q: 133 students at a college were asked whether they had completed their required English 101 course,…

A: Given, The objective is to find the best point estimate for the proportion of students at the…

Q: 4. What happens to the accuracy on the left margin?

A: A map is a graphical representation, for an established scale, of a part of the earth's surface,…

Q: What is the fraction of deaths that happened before 2012?

A:

Q: 85 students at a college were asked whether they had completed their required English 101 course,…

A: Best point estimate:The best point estimate of population proportion is the sample proportion.

Q: 114 students at a college were asked whether they had completed their required English 101 course,…

A: From the provided information, the total students of collage (n) = 114The number of students who…

Q: 104 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: 101 students at a college were asked whether they had completed their required English 101 course,…

A:

Q: A recent survey found that in a particular city of all poor children born in 1980, 11,500 enrolled…

A: Scaling of data:The scaling of data, or in other words, normalization of data is a mathematical…

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.