An environmental journal discussing current water usage within the US reports a 95% confidence interval of (82 , 88) for the average number of household gallons used per person per day. The study was based on a random sample of 30 individuals throughout the nation. Determine the margin of error for the confidence interval.

Q: A tire company wants to determine if tires made with a new type of tread will last longer than tires…

A: A tire company :  Two types of threads :  1 : new type of thread 2 : orginal type of thread Now ,…

Q: Show that = n. mnZ

A: mZ = set of all integers which are divisible by m mnZ = set of all integers which are divisible by…

Q: In a survey of ECE students, 64 had taken Material Science course, 94 had taken Calculus course, 58…

A:

Q: Determine the number of subsets of {14, 15, 16) O A. 3 В. 7 ОС. 8 O D. 6

A: To find  The number of subsets of a set {14, 15,16}

Q: 48! a!44! 12. Ealuate .

A: To evaluate the given  (48!)/(2!*44!)

Q: Evaluate.

A: ∑k=1106-12k

Q: 2) 100 interviewees interviewed for a position at a five star hotel. From the interviewees, 50 had a…

A: Given that, 100 interviewees interviewed for a position at a five star hotel. From the interviewees,…

Q: Compute (8). O 6720 O 336 O 42 O 56

A: We have to find out the combination of 8 to 5 or 8C5.   The combination formula: C(n, r) =…

Q: . A shipment of 50 calculators contains 3 that are defective. In how many ways can an inspector…

A: we have to find number  of ways..

Q: 4. Suppose U = {1, 2, 3, 4, 5, 6, 7, 8, 9}, A = {3, 4, 5, 6, 7}, B = {all multiples of 3} and C =…

A: U=1,2,3,4,5,6,7,8,9A=3,4,5,6,7B=all multiples of 3C=all multiples of 2

Q: 28) Find the GCF and LCM for 23 313 532 and 25 323 513

A:

Q: Gz tサ)

A:

Q: 2. Show that 27 | (5²² – 4).

A:

Q: Assume a club N with six members: N = {Andy, Bill, Cathy, David, Evelyn, Erik} Count the different…

A: Finding the number of elements in a set or the total number of possible outcomes in an event is…

Q: In a survey of 251 professional athletes, it was found that 125 of them owned a convertible, 99 of…

A: Let us denote C=convertible, T=giant screen TV, S=sporting good storeGiven that:n(C)=125, n(T)=99,…

Q: 134

A:

Q: In how many ways can a committee of 6 members be formed from a group of 12 people consisting of 5…

A:

Q: You have an Amazon box delivered that contains 7 blue, 6 yellow, and 2 green marbles. You randomly…

A: In the given problem amazon contains 7 blue marbles, 6 yellow marbles and 2 green marbles. Total…

Q: (8) If the average productivity of six workers is (176) units per day, and the productivity of five…

A: Let 'x' is the productivity of sixth worker. Given Average productivity of the six worker= 176 We…

Q: Suppose there were 500 nurses graduating this year. Assume that 400 were registered nurses (RN), and…

A: Let RN be the registered nurses, and H be the nurses who plan to work in hospital. From the…

Q: 1) 3% of 7 is what? 2) 56% of 76 is what? 3) What is 320% of 72.9? 4) 31.9 is what percent of 65? 5)…

A: To answer the following questions

Q: Determine C given: C= - c = [³ 4 3 -2 1 4 12 6 3 3 1 6 56 -4 3 25 8-95

A:

Q: In a village out of 200 people it was found that 55 people are infected from Malaria, 72 people are…

A: Solution: From the given information, 55 people are infected from Malaria, 72 people are infected…

Q: Assume that there are 105 students: 45 of which like rock, 52 of which like country, and 23 of which…

A:

Q: Suppose that a candy shop sells eight different kinds of candies: 50 cherry, 50 strawberry, 40…

A: Given that,  8 different type of candies. 50 cherry, 50 stawberry ,40 orange, 70 lemon, 30…

Q: 49 52 18 65 57 26 24 16 91 29 52 58 35 35 9 78 67 44 47 67 84 71 59 61 82 38 38 50 65 39 54 71 42 85…

A: Given data…

Q: A survey of 1,152 tourists visiting Orlando was taken. Of those surveyed: 274 tourists had visited…

A: The number of tourist visited any of these three theme parks is calculated as follows:

Q: Let A = {a, b, c}, B = {1,2, 3} How many elements are in A × B? Determine A × B

A:

Q: At a used-book sale, 92 books are adult books and 145 are children's books. Of the adult books, 60…

A: Given No. of adult books = 92 No. of children's books = 145   Of the adult books 60 are nonfiction…

Q: c) How many use both Facebook and text, but not email? Blank 3

A: (c) Given number of student use text 625 Number of students use both Email and text 550 Number of…

Q: 3 A recent survey concluded that of the teachers in a certain school district had at least 10 years…

A:

Q: Exercisé 4.8 1. Coins are arranged in piles. The first pile contains six coins and each successive…

A: according to our guidelines we can answer only three subparts, or first question and rest can be…

Q: 13 15 H.W

A: We have given y and u  We have to find the second order derivative of y with respect to x