In a year there are 956 births in a town A, of which 52-5% were males, while in towns A and B combined, this proportion in a total of 1406 birth was 0:496. Is there any significant difference in the proportion of male births in the two towns ?

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A: If ratio are given in m:n in positive and negative samples of total is r. then xy=mn then x=myn and…

Q: A stadium has 250 people in it at noon. If 35 people per minute enter the stadium, how many are in…

A: Number of people at noon, or in terms of  slope intercept form, y intercept=250 Rate at which people…

Q: A few years ago, a country consumed 19,300,000 barrels of oil per day. That same year, there were…

A: Given: Barrels of oil consumed by country per day approximately is 19,000,000 Number of households…

Q: The hockey team won 8 out of their first 14 games. At the Same Rate, how many games should they…

A: We can find the answer as below.

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 4000 panels. Ten percent…

A: Given that Plant A produced 4000 panels and defective is 10% Defectives from plant B is 3%,  overall…

Q: The class consist of 50 students of which 35 are boys and remaining are girls. The average marks of…

A: Given that, Total =50 No.of boys =35 No.of girls=15 Average marks .of boys =45 Average marks .of…

Q: The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes…

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Q: A chemist has two alloys of bronze, one that is 12% tin and 88% copper, and a second that is 10% tin…

A: Given, 12% tin and 88% copper in alloy 1. 10% tin and 90% copper in alloy 2. Consider 100 g quantity…

Q: There are 374 students who are enrolled in an introductory geology course. If there are five boys to…

A:

Q: A firm's total annual expenditure was $ 494,200 and 5/14 of this was for wages. What was the annual…

A:

Q: In​ 2005,10.610.6out of every 50 employees at a company were women. If there are 48,442 total…

A: In the year 2005, 10.6 out of every 50 employees at a company were women.Consider x as the number of…

Q: 1. In 2017, how many more students enrolled in School A than in School B? 2. In 2020, how many more…

A:

Q: How many ⅔g tablets can be prepared from a stock of 66g?

A: given that,  How many 23g tablets can be prepared from a stock of 66g? so,            each tablet…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 10,000 panels. Ten percent of…

A:

Q: In a study, the rate of success of initial vaccination among 330 subjects receiving the 1:10…

A: Given: Sample size of subjects (n) = 330 Sample proportion or success rate p^=0.971 Hypothesized…

Q: At a competitive examination at which 600 graduates appeared, boys outnumbered girls by 96.

A: It is asked to find the number of boys who qualified for the interview. Let's assume,  N = Total…

Q: 50% of the students in a school were boys. 20% of the boys and 2/3 as many girls as boys took part…

A: As 50% are boys in the school so left 50% is girls which imply number of boys and number of girls…

Q: In a sample of 47 men, 36 said that they had less leisure time today than they had 10 years ago. In…

A: We have to perform test for difference in two proportion.

Q: Molly recorded how many nuts of each type she blindly grabbed from a can of mixed nuts.     walnuts…

A: The probability of walnuts is 50/100 =1/2

Q: On four exams,Wallace's grades were 79,93,91 and 68. what grade must he obtain on his fifth exam to…

A: Let Wallace's grade in the 5th exam be x.

Q: Suppose that College A has four-fifths the enrollment of College B. (i) If College B has 2000…

A:

Q: There are 75 students enrolled in American History.  If 60 of the students enrolled are also…

A: Given that: There are 75 students enrolled in American History.  If 60 of the students enrolled are…

Q: While reviweing the previous days arrest report, a police sergeant notices that six suspects were…

A:

Q: The number of people applying for free financial aid has gone up in the past decade by 6.74%. If the…

A: Given Data: Change in percentage=0.0674   Number of people that used to apply=9720000

Q: The admission fee at an amusement park is $1.25$1.25 for children and $6.80$6.80 for adults. On a…

A:

Q: Out of 800 families with 5 children each, how many would you expect to have, (i). 3 boys (ii) Either…

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Q: (d) (Advanced) Of selecting two CEOS and finding they both made more than $1 million?

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Q: If the airline sells 644 tickets on the night flights, how many unsold tickets can the airline…

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Q: The population of a certain country is about 40 million. Last year, the number of deaths due to…

A: Given that , The population of a certain country is about 40 million. Last year, the number of…

Q: The finals for the 100-meter sprint at the Olympics has 5 runners. In how many ways can they place…

A: In 60 ways they place first , second , third .

Q: On September 28, 2012. The Wall Street Journal reported that in the second quarter, the number of…

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Q: From a group of 8 junior employees and 4 senior employees, how many different teams of four can be…

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Q: In a survey at a local university 52% of students say that they less than the recommended eight…

A: The problem concerns working out the percentages and interpreting .

Q: Total spending in the US on lotteries in 2017 was about $75 billion. Given a US Population of 325…

A: Total spending in the US on lotteries in 2017 was about $75 billion. US Population of 325 million of…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 8000 panels. Ten percent of the…

A:

Q: Of 200 people who purchased home computers from a national company, 44 received machines with…

A: Find the rate of defective

Q: Of the 600 people at a music festival, 420 had attended the previous year. How many people out of…

A: Assume x = no. out of 100 Given that 420 people out of 600 attended festival last year

Q: s comprise 65% of trees in the first orchard and 45% of trees in ards combined. What percentage of…

A: Let the number of trees in the first orchard be x and the number of trees in the second orchard be…

Q: n a recent year, 39% of all college students were enrolled part time. if 8.9 million college…

A: Given that 39% of all the college students enrolled for part time in a particular year. The number…

Q: The Pulmonary Division at your hospital asked that you calculate the percentage of asthmatic adults…

A:

Q: a. lose exactly 430 bags next week? b. lose at most 420 bags next week? c. lose more than 450 bags…

A: here mean  = 427 bags  standard deviation  = 35 bags    x = no of bag lost in next week

Q: A survey found that in a sample of 100 families, 37 owned cats. A survey done 5 years ago found that…

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Q: The proportion, po, of foraging bumblebees not exposed to pesticides who bring very little pollen…

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Q: The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes…

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Q: Assuming a group has one uniform rate, 40% of the group receives a 10% rate increase and 60% of the…

A: We will consider that the group has total 100 members and each member of the group has a uniform…

Q: It has been reported that the average credit card debt for college seniors at the college book store…

A: Given: Sample size, n = 50 Sample mean,   Standard deviation,

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A: Here, we have to assume that efficiency of workers is proportional to the amount they get paid per…

Q: Two factory plants are making TV panels. Yesterday, Plant A produced 6000 panels. Ten percent of the…

A: Two factory plants are making TV panels. Yesterday, Plant A produced 6000 panels. Ten percent of the…

Q: Suppose Math 180A has 60% juniors and 40% sophomores. If 30% of the juniors live off campus and 15%…

A:

Q: A bicycle manufacturer observes that the number of bike paths in a city affects the number of…

A: here take  x= no. of bike paths y= no. of bicycle sold here compute the regression line and then for…