As the saying goes, any man should accomplish three things in his life: build a house, plant a tree, and raise a child. Let us concentrate on the second part for now. A certain gardening magazine conducted a survey to determine how many people have planted a tree in their life. The results stated that 13% of the respondents have planted at least one tree. For the margin of error to be 5%, how many people should be surveyed? Round up to the nearest whole number, if necessary. In order to have a margin of error of 5%, people should be surveyed.

Q: In order to have a margin of error of 2%, people should be surveyed.

A: we are given that 24% people consider summer as their favourite season (p) = 0.24 to find  number of…

Q: According to the results of a survey, 39% of 213 people indicated that American football is their…

A: The formula for the sample size is as given below: n=p1-pZα2E2 Here, zα/2 is the critical value at…

Q: Suppose that the results of a survey show that 41% of people consider summer as their favorite…

A: Solution: The sample size formula is given as below: n = p*q*(Z/E)^2 We are given p = 0.41 q = 1 – p…

Q: If the baker's percentage for raisins in a raisin bread formula is 8% and the baker's percentage for…

A: If the baker's percentage for raisins in a raisin bread formula is 8% and the baker's percentage for…

Q: In the movie Die Hard: With a Vengeance, Bruce Willis and Samuel L. Jackson are given a 5-gallon jug…

A: It is given that, Bruce Willis and Samuel L. Jackson are given a 5-gallon jug and a 3-gallon jug and…

Q: For paired observations, the value of the average difference is?       A. either positive or…

A: For paired observations, we calculate the difference for each pair Then the average is taken by…

Q: How large the sample size should be in order to be 98 percent confident, if the sample proportion is…

A: Given data, p=0.78 E=0.16 z-value at 98% confidence is Zc=2.326 n=?

Q: If you expect to have four times as many women (compared to men) at a 20-person Emergency Room…

A:

Q: Nick makes the first quartile salary for an actuary and Dylan makes the first quartile salary for a…

A: From the given box plot:   First quartile for CPA salary= $35,000   First quartile for Actuary…

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: A soccer team won 24 of 36 games in the first season. If the team had the same ratio of wins to…

A:

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: If the sociologist can sample 100 women, what will the margin of error be?

A:

Q: If the pipette is set to dispense 200 microliters, what percentage of time will it dispense greater…

A:

Q: As the saying goes, any man should accomplish three things in his life: build a house, plant a tree,…

A: Let the Confidence interval here be 90%   Given data, p=19%=0.19 E=3%=0.03 z-value at 90% confidence…

Q: A bicyclist rides 42 miles in 3 hours. At the same rate, how many miles x can the bicyclist ride in…

A:

Q: If 90% of the athletes who test positive for steroids in fact use them, and 10% of all athletes use…

A:

Q: Among survey respondents who thought the economy was getting better, what fraction were Democrats?…

A: Given -   Better Same Worse Total Republican 38 104 44 186 Democrat 12 87 137 236 None 21…

Q: Will, an art student, randomly sampled oil paintings in a museum. He wanted to find out how many oil…

A: Given :  Margin of Error  (E) = 0.02 The proportion of paintings that were created using the color…

Q: A company wants to know the proportion of consumers willing to buy their product. How many people…

A: Given that ME=margin of error=1.5%=0.015z=critical value off 90% confidence…

Q: A person rolls a 10-sided die once. What are the odds that the number rolled is not greater than or…

A: As per given by the question, What are the odds that the number rolled is not greater than or equal…

Q: You survey 100 people and find that 75 of them would prefer to work at home to some extent. When…

A: Given: You survey 100 people and find that 75 of them would prefer to work at home to some extent.…

Q: On a multiple-choice quiz of 25 questions, a correct answer is awarded 4 points and an incorrect…

A:

Q: Researchers conducted a survey among 400 doctors to ask the question; "Are you willing to treat your…

A: Given Sample size, n = 400  For a conservative case, we assume that the proportion of  patients…

Q: The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its…

A:

Q: create 2 sample word problems of antidifferentiation with solutions

A: First problem: The rate of water out of a faucet is rt=t3, where t is the number of minutes from the…

Q: A researcher wishes to estimate the proportion of adult males who are less than 5 feet 5 inches…

A: It is given that margin of error (E) is 0.04 and the confidence level is 0.90.

Q: If Gena's score is 85, the class average is 82, and the SD is 4, what is Gena's Z-score?

A: If Gena's score is 85, the class average is 82, and the SD is 4, what is Gena's Z-score?

Q: Out of 200 people, 40 own dogs. Out of 550 people, how many would you expect to own dogs if the same…

A:

Q: A group of researchers want to investigate the academic performance of the college students in…

A: Given that, N = 12000 Margin of error (e) = 0.05 The formula for calculating the sample size is,

Q: The sum of 20 observations is 300 and its sum of square is 5,000 and median is 15. Find its…

A: In question, Given that The sum of 20 observations is 300 and its sum of square is 5,000 and median…

Q: At a local Dunkin'donuts, a survey showed that out of 1280 customers eating lunch, 640 ordered…

A:

Q: if you answer 36 problems correctly on a 42 question test what percentage of the problems did you…

A: if you answer 36 problems correctly on a 42 question test what percentage of the problems did you…

Q: Paradise Resort has a total of 350 lounge chairs. If 210 chairs are under umbrellas, what percent of…

A:

Q: Green Coffee revealed that the ratio of customers who purchase different coffee-based drinks:…

A: Given: Number of drinks that are sold in a day = 630 Ratio for coffee is given as 4:9:7:6 Sum is:…

Q: .A recent news program reported that the presidential approval rate was 51% with a margin of error…

A: A recent news program reported that the presidential approval rate was 51% with a margin of error of…

Q: A survey of 1104 adults nationwide asked, what irks you most about the actions of other motorists?…

A: Percentage is the ratio of people responded tailgators to the total people surved.

Q: What proportion of the population score above an 18 on the ACT? What proportion of students score…

A: Given: Let X denote the SAT score thus, X~ N(500, 1002) Let Y denote the ACT score thus, Y~ N(20,…

Q: If the median house price is $1.9m, does that necessarily mean that half of the houses on the block…

A: Median refers to the middle value that divides the whole data in two equal to parts lower half and…

Q: Suppose that the results of a survey show that 41% of people consider summer as their favorite…

A:

Q: n to survey fans regarding whether they pay $1 more for an upcoming album if it came with a code…

A: First survey Margin of error (E) = 0.0425 Sample proportion p^ =0.90 Second survey Sample proportion…

Q: Among survey respondents who thought the economy was getting better, what fraction were Republicans?…

A: Instruction : "I only need help with the last 2 please" Given : Total respondents  =651

Q: a. A buyer can afford to pay up to $150 thousand. Assulmilng The proportion of homes that the buyer…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Solve the following problem step by step please A newspaper does a survey of reading preferences…

A: 330=150(survey)+120(read electronic)+50(Physical)+10(do not read any format)

Q: Jaqueline has 15 cookies to share with her study group P there ane 4 kids in the group and they want…

A: Jaq ueline has 15 cookies to share with her study group  There are 4 kids in group And they want to…

Q: On a certain test, the average passing score is 72 while the average failing score is 50. If the…

A: Lets say there are 'm' number of students a1, a2,.........am passed the test and 'n' number of…

Q: According to the results of a survey, 37% of 278 people indicated that American football is their…

A: It is given that margin of error (E) is 0.04

Q: The table shows the ratios of black socks to white socks in the women's and men's department of a…

A:

Q: Suppose that the results of a survey show that 28% of people consider summer as their favorite…

A: Given Data: p^=0.28 Let 'n' be the random sample Margin or error=0.06   Let us assume level of…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.