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1.(1) The claim by a weight loss Company is that on average, the client will lose 10 pounds over ...

first 2 weeks. 50 people who joined the programme are sampled, their weight loss is 9 pounds with a standard deviation of 2.8 pounds. Can we conclude at the .05 level that a person joining the programme will lose less than 10 pounds? (2) The following is a random sample of 90-day futures prices in dollars for 1 troy oz. of silver from The Wall Street Journal issues in May and June of 1997: 4.74, 4.77, 4.87, 4.91, 4.83, 4.72, 4.92, 4.86, 4.97, 4.71, 4.90, 4.93, 4.75, 4.88, 4.79, 4.83, 4.89. Required: a. Calculate the mean b. Median c. Standard deviation of the 90-day future price of silver data (3) A mining company needs to estimate the average amount of copper ore per ton mined. A random sample of 50 tons gives a sample mean of 146,75 pounds. The population standard deviation is assumed to be 35.2 pounds. Required: a. Give a 95% confidence interval for the average amount of copper in the population of tons mined. b. Give a 90% confidence interval for the average amount of coper per ton c. Give a 99% confidence interval for the average amount of coper per ton (4) An e-commerce Website gets 2,385 visitors on a particular day. Among these, 1790 visitors explore the products by looking at more pages at the site. Among these 1790 visitors who explore the products, 387 make a purchase. Required: a. If a visitor chosen at random from all those who visited the site, what is the probability that the visitor explored the products b. If a visitor is chosen at random from all those who visited the site, what is the probability that the visitor made a purchase. c. If a visitor is chosen at random from all those who explored the products, what is the probability that the visitor made a purchase. d. Which of the preceding three probabilities is relevant to the design of the home page that leads to product page.
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3.I would like help with this math question: A store decides to put summer clothes on sale due to change of ...

nge of season. If a 25% discount is applied to the clothes, the store is going to lose $25 per item. If a 10% discount is applied, the store is still going to gain $20 per item. Determine the original tag price of the item. Tax is not involved in this question. (Hint: How would you express the price of an item after 25% discount if the original price is ? What about after 10% discount? What is the connection between the two discounted prices?)
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4.Hello guys, I confess that I absolutely suck at math. Unfortunately my boss handed me what is basically a math ...

lly a math problem I gotta solve, and I have no idea how to do it cause of lack of my math skills. I am hoping someone can help me with this or I'm screwed. Co basically I've got this table in excel, where X (row) is a width and Y is a height (column) of a wooden sauna cabin, the X;Y is the price for a sauna with said dimensions. I need to find a relationship between the size of the sauna and the price And formulate ani equation. I can't seem to find it, the price seems to grow non linearly, I can't seem to find any coeficient. Again, I suck at math, maybe solution is simple, but I just don't see it. Can anyone help me please? Table Is at this link https://ibb.co/fGrxSvf . Thanks for any help!
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5.At a price of $1.04 per roll, the supply of toilet paper in a large town is 25,000 rolls, and ...

mand is 18,200 rolls. When the demand increases to 26,200 rolls, the supply is 20,000 and the price is $1.24 per roll. Let x be the quantity in thousands of rolls. The table below gives the price-supply and price-demand equations. Price Equations for Toilet Paper Type Equation Price-Supply P = -0.04x + 2.04 Price-Demand P = 0.025x + 1.495 QUESTION 1 Find the supply at a price of $2 per roll. 1000 rolls 10,000 rolls 1 roll 5000 rolls QUESTION 2 Find the demand at a price of $2 per roll. 20.2 rolls 202 rolls 20,200 rolls 500 rolls QUESTION 3 Use the substitution method to find the equilibrium quantity. Round x to the nearest tenth first and then convert to thousands. Include the units in your answer. QUESTION 4 What is the equilibrium price? Write the answer in dollars and cents, rounding to the nearest cent.
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6.1. A leg of lamb cost $14.88 per kilogram before cooking and the percentage of yield is 83% what is ...

the cost per kilogram of the edible of the lamb Answer with 2 decimal place 2. A beef tenderloin costs $34.17 per kilogram before trimming and the percentage of yield is 80%. What is the cost per kilogram of the usable portion of the beef tenderloin? (Answer with 2 decimal places) 3. The cost of a portion of roast sirloin of beef with potatoes and vegetables is $4.70. If we desire a 41% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 4. The cost of a portion of grilled halibut with boiled potatoes & vegetables is $4.69. If we desire a 27% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 5. The cost of a caesar salad is $2.38. If we desire a 31% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 6. The cost of a pulled pork sandwich with coleslaw and fries is $3.14. If we desire a 37% food cost, what should the menu price be? Round your answer to the nearest penny. (Answer with 2 decimal places) 7. The cost of a portion of deep fried chicken with corn fritters and fries is $4.55. If we set a menu price of $15.75, what would the food cost percentage be? (Answer with 2 decimal places) 8. The cost of a veal piccata complete with penne pomodoro & vegetables is $6.03. If we set a menu price of $18.50, what would the food cost percentage be? (Answer with 2 decimal places) 9. The cost of a portion of beef goulash complete with spaetzle and vegetables is $5.82. If we set a menu price of $15.50, what would the food cost percentage be? (Answer with 2 decimal places)
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7.Investors buy a studio apartment for 120,000. Of this​ amount, they have a down payment of 18,000 . Their down ...

. Their down payment is what percent of the purchase​ price? What percent of the purchase price would a ​$48,000own payment​ be?
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics