Two High Schools want to know how many of there students have pets in School A: School B: Do have pets: 315 226 Do not have pets: 255 444 1. Find the point estimate 2. Find the Margin of error 3. Subtract the Margin of Error from and Add the Margin of Error to the Point of Estimate (find lower end point and upper end point)

Q: Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows.…

A: Given Information: Jo weighs 25 cows and gets an average weight of 1,350 pounds (standard dev 50)…

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A:

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

Q: Find the point estimate, the margin of error, and interpret each 95% CI. a) 12 < μ < 18 b) 0.10 < p…

A: Know that  The point estimate of the population mean μ is. =x̄ And  Population proportion p is p^…

Q: In the freshmen class, 62% of the students take Math, 49% take Science, and 38% take both Science…

A: It is given that, P(Math) =62%=0.62 P(Science) =49%=0.49 P(Math and Science) =38%=0.38

Q: 1. Toyota estimates that on a full tank their new car model can travel 480 miles with a margin of…

A: GivenMean(x)=480 Margin of error(E)=10

Q: With a coupon, you can get a pair of Jordan 11 that normally costs $220 for only $150. What…

A: Answer and explanation is given below.. Total costs of a pair of jordan 11 before discount =$ 220…

Q: It is estimated that each guest at a party will eat 7/8 pounds of chocolates. How many guests can be…

A:

Q: A video game store has 60 games to choose from, including 40 sports games. What is the ratio of…

A: From given information,  Number of games in a video store=60  Number of sports games in them = 40

Q: Waramy carpets has a policy of keeping a margin of 82% on their regular price carpets. On a recent…

A: The selling price is the price at which the product is sold. The markup price is the difference…

Q: The rectangular front windshield of the bus has the length of 1.5/3 m and the width of 1.5 m. The…

A:

Q: The ratio of boys to girls in the class was 3 to 2. If there were 12 boys, how many girls were…

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Q: 4. Sofiaowns a specialty store and finds that its sales on earrings run 2:5 ratio compared to sales…

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Q: If the ratio of brown sugar to granulated sugar in an oatmeal cookie recipe is 4:3, what fraction of…

A: To Determine: what fraction of the recipe is brown sugar? Given: If the ratio of brown sugar to…

Q: What percentage of students spent up to 49 minutes on the computer?

A: Introduction: The quantity N possibly indicates the total number of observations in the dataset,…

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: (b) Without doing an actual calculation, explain why the margin of error is so small.

A: This is One Sample Proportional test . we are given that p=0.93 and n=155612

Q: If the mean of five values is 64, the sum of these values is .. О 318 О 314 О 320 О 321

A: The solution is given as

Q: What would be the percentage of 20 out of 21 faculty members being funded of a salary totaling…

A: We have to divide 20 by 21 and then multiply by 100 to find percentage

Q: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50), what is the margin of…

A: It is given that:

Q: At the Da Vinci Institute, the ratio of girls to boys is 6 to 4. If 420 boys attend the school, how…

A: At the vince Institute  Girls : boys = 6:4  Let number of girls be 6x and number of boys be 4x

Q: In a school party, the ratio of boys to girls is 6:5.If there are 90 boy,how many students are…

A: Given : In a school party , The ratio of boys to girls is 6:5 There are 90 boys

Q: In examination of two proportion difference we can apply either Z or X2 test O True O False

A: For testing the difference of two proportions the z statistic must be used. The two proportion test…

Q: What percent of trees are 85-89.9 ft tall? What percent of trees are at least 70 ft tall?

A:

Q: ) How many people would you need to poll to get a margin of error of ±4.8% ?

A: Let's take number of people as 1000. The margin error is ±4.8%.

Q: A television commercial claims that 3 out of 4 dentists prefer GRIN toothpaste. If they surveyed 200…

A:

Q: Megan and her little sister, Nora, counted their Halloween candy after trick-or-treating. They love…

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Q: At a class, 40% are sophomores, and 50% of the students like fencing. Of the students that like…

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Q: Pam takes her truck in for basic service. The service agent says a few extra repairs are also…

A: from the given parts the total costs are as  Wheel alignment: $110 Transmission fluid flush: $75…

Q: if the owner if a flooring company created an estimate for installing hardwood flooring at a charge…

A: It is given that, The room to receive flooring is a 16 foot by 24-foot rectangle  then the area of…

Q: The ratio of picnic tables to garbage cans in a new national park should be 8:3. The park design…

A: Given that, the ration of no. of picnic tables to garbage cans is 8 : 3. That is, for 8 picnic…

Q: In the survey of Americans who play various instruments, 88 million play piano, 60 million play…

A: In the survey of Americans who play various instruments, 88 million play piano, 60 million play…

Q: there are 6 shirts and 3 pairs of pants in the bag, what is the ratio of shirts to pants?

A: Given  No. Of shirt = 6 No. Of pair of pants = 3

Q: John wants to buy some equipment. To estimate the total cost he rounds each price to the nearest…

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Q: A chef planning for a large banquet thinks that 2 out of every 5 dinner guests will order his soup…

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Q: Ted conducted a survey with a sample of 822 people. The measure of accuracy of his survey according…

A: Given: A survey is conducted by Ted. The sample number of people are n=822. An observation about the…

Q: A factory can make 3,848 pencils in one hour. Which is the best estimate of how many pencils can be…

A: The factory can make 3848 pencils in one hour. We have to find the number of pencils that can be…

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

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Q: cloud is a vegetable grower , has 8 4/15 plots of pechay, 5 1/3 plots of eggplants and 5 2/5 plots…

A: Steps to follow for addition of mixed numbers: 1) In the addition of mixed numbers, first add the…

Q: In a box of 36 pencils ,20 are sharpened what is the ratio of sharpened pencils to unsharpened…

A:

Q: What proportion can be used to find 65% of 90?

A: Given that 65% of 90. To find this value we can use the proportion

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: The ratio of employed manufacturing engineers to mechanical engineers in industrial company is 7 to…

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Q: Is the vendor most likely to use estimation, mental math or a calculator to find the amount of…

A: A hotdog vendor receives a Php 50 bill for a Php15. 50 purchase.   To find the amount of change, we…

Q: if a crumb topping is made with a ratio by weight of 3 parts brown sugar, 2 parts flour, and 1 part…

A: From given it is observed that, with 3 parts brown sugar, 2 parts flour, and 1 part butter can make…

Q: A business serves 33 customers with 60 staff to maintain a strong ratio of staff to guests. How…

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Q: In a company, 22% of the workforce are in sales, 56% of the workforce are male and 65% of the…

A: Probability is defined as a number between 0 and 1 representing the likelihood of an event…

Q: The rectangular front windshield of the bus has the length of 1.5V3 m and the width of 1.5 m. The…

A: The rectangular front of windshield has  Lengthl=1.53mWidthb=1.5m The wipers are attached to bottom…