Expected Count = row totalxcolumn total table total College Non-College Graduate Graduate Support 154 132 Oppose 180 126 Do not know 104 131 Total 438 389 How many llege graduates would we expect to OPPOSE drilling? Round to one decimal place. 144
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- Cholesterol Cholesterol in human blood is necessary, but too much can lead to health problems. There are three main types of cholesterol: HDL (high-density lipoproteins), LDL (low-density lipoproteins), and VLDL (very low-density lipoproteins). HDL is considered “good” cholesterol; LDL and VLDL are considered “bad” cholesterol. A standard fasting cholesterol blood test measures total cholesterol, HDL cholesterol, and triglycerides. These numbers are used to estimate LDL and VLDL, which are difficult to measure directly. Your doctor recommends that your combined LDL/VLDL cholesterol level be less than 130 milligrams per deciliter, your HDL cholesterol level be at least 60 milligrams per deciliter, and your total cholesterol level be no more than 200 milligrams per deciliter. (a) Write a system of linear inequalities for the recommended cholesterol levels. Let x represent the HDL cholesterol level, and let y represent the combined LDL VLDL cholesterol level. (b) Graph the system of inequalities from part (a). Label any vertices of the solution region. (c) Is the following set of cholesterol levels within the recommendations? Explain. LDL/VLDL: 120 milligrams per deciliter HDL: 90 milligrams per deciliter Total: 210 milligrams per deciliter (d) Give an example of cholesterol levels in which the LDL/VLDL cholesterol level is too high but the HDL cholesterol level is acceptable. (e) Another recommendation is that the ratio of total cholesterol to HDL cholesterol be less than 4 (that is, less than 4 to 1). Identify a point in the solution region from part (b) that meets this recommendation, and explain why it meets the recommendation.22. Eight students need to be assigned to four dormrooms (two students to a room) at State University.Based on incompatibility measures, the “cost”incurred if two students room together is shown inthe file P08_22.xlsx. How should these studentsbe assigned to rooms to minimize the totalincompatibility?7. Micron Electronics makes personnel computers that are then sold directly over the phone and over the Internet. One of the most critical factors in the success of PC makers is how fast they can turn their inventory of parts. Faster inventory turns means lower average inventory cost. Recently at a meeting, the VP of manufacturing said that there is no reason to continue offering hard disk drives that have less than a 100 GB storage capacity since only 12% of Micron customers ask for the smaller hard disks. After much discussion and debate about the accuracy of the VP’s figure, a sample of 50 orders from the past week’s sales was taken. This sample revealed 8 requests for drives with less than 100 GB capacity. a. Determine the probability of finding 8 or more requests for hard disk drives with low storage capacity if the VP’s assertion is correct. Do you believe that the proportion of customers requesting hard drives with low storage capacity is smaller than 0.12? Explain. b. Suppose…
- Show detailed calculation Capacity ManagementTo minimise the labour cost of every customer service centre throughout the country, LG ElectronicsVietnam runs a single-server system. A single-server queue has random arrivals at a rate of 30 an hourand random service times at a rate of 40 an hour. If it costs £20 for each hour a customer spends in thesystem and £40 for each hour of service time, how much does the queue cost?a pollster wnats to minimize the effect the order of the questions has on a person's response to a survey. how many different surveys are required to cover all possible arrangements if there are 9 questions on the survey?An economist is studying the job market in Denver area neighborhoods. Let x represent the total number of jobs in a given neighborhood, and let y represent the number of entry-level jobs in the same neighborhood. A sample of six Denver neighborhoods gave the following information (units in hundreds of jobs). x 17 32 52 28 50 25 y 1 2 7 5 9 3 Find x (in hundreds). (Round your answer to four decimal places.)x = hundred jobsFind y (in hundreds). (Round your answer to four decimal places.)y = hundred jobsFind the equation of the least-squares line ŷ = a + bx. (Round your numerical values to four decimal places.)ŷ = Find the value of the coefficient of determination r2. (Round your answer to four decimal places.)r2 = What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? (Round your answer to two decimal places.) %What percentage is unexplained? (Round your answer to two decimal places.) % For a neighborhood with x…
- Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep. This condition results in lack of sleep and extreme fatigue during waking hours. A current estimate is that 11.911.9 million out of the 312.7312.7 million Americans suffer from sleep apnea, or approximately 3.8%3.8%. A safety commission is concerned about the percentage of commercial truck drivers who suffer from sleep apnea. They do not have any reason to believe that it would be higher or lower than the population’s percentage. To test the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 3.8%3.8%, a simple random sample of 347347 commercial truck drivers is examined by a medical expert, who concludes that 66 suffer from sleep apnea. Does this evidence support the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 3.8%3.8%? Use a 0.020.02 level of significance. Step 3 of 4 : Find the p-value. Round…The amount of tea leaves in a can from a particular production line is normally distributed with μ = 110 grams and σ = 25 grams. A sample of 25 cans is to be selected. So, 95% of all sample means will be greater than how many grams? 101.7757 211.8565 100.77985 215.78592stion 3 It is assumed that the proportion of households that have three telephone numbers is 30%. A company have reason to believe that this proportion of households is less than 30%. A market survey of 150 households gives the results that 43 of the households have three telephone numbers. Test at 5% level of significance whether the telephone company’s belief is true
- IN excel if possibleGreat Grasslands Grains, Inc. (GGG) manufactures and sells a wide variety of breakfast cereals. GGG’sproduct development lab recently created a new cereal that consists of rice flakes and banana-flavoredmarshmallows. The company’s marketing research department has tested the new cereal extensivelyand has found that consumers are enthusiastic about the cereal when 16-ounce boxes contain at least1.6 ounces and no more than 2.4 ounces of the banana-flavored marshmallows.As GGG prepares to begin producing and selling 16-ounce boxes of the new cereal, which it has namedGo Bananas management is concerned about the amount of banana-flavored marshmallows. It wants tobe careful not to include less than 1.6 ounces or more than 2.4 ounces of banana-flavoredmarshmallows in each 16-ounce box of Go Bananas. Tina Finkel, VP of Production for GGG, hassuggested that the company measure the weight of banana-flavored marshmallows in a random sampleof 25 boxes of Go Bananas on a weekly…Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep. This condition results in lack of sleep and extreme fatigue during waking hours. A current estimate is that 21.321.3 million out of the 312.7312.7 million Americans suffer from sleep apnea, or approximately 6.8%6.8%. A safety commission is concerned about the percentage of commercial truck drivers who suffer from sleep apnea. They do not have any reason to believe that it would be higher or lower than the population’s percentage. To test the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 6.8%6.8%, a simple random sample of 412412 commercial truck drivers is examined by a medical expert, who concludes that 1717 suffer from sleep apnea. Does this evidence support the claim that the percentage of commercial truck drivers who suffer from sleep apnea is not 6.8%6.8%? Use a 0.050.05 level of significance. Step 4 of 4: Draw a conclusion and…Here are some summary statistics for the numbers of hectares of olives and apples harvested per region, for area that planted those crops. In Region A, there were 36 hectares of olives harvested and 18 hectares of Apples harvested. Relative to its crop, which plant had a better harvest? A: They had equally good harvests relative to their crops. B: The Olives. C: It’s impossible to say without seeing all of the harvest amounts. D: The Apples.
