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- Find the values of x in each proportion: a x6=3x c 6x+4=2x+2 b x53=2x37 d x+35=x+57 e x2x5=2x+1x1 g x1x+2=103x2 f x(x+5)4x+4=95 h x+72=x+2x2Suppose that Person A earns $35,000 per year and Person B earns $42,000. (i) Find the exact percentage by which Person B’s salary exceeds Person A’s. (ii) Now, use the difference in natural logs to find the approximate percentage difference.Match the values with the equivalent percentages. 45% of 200 30% of 15 35% of 150 20% of 50 10% of 20
- Find the z-score that cuts off 15% in the tail on the right. (Hint: if you can’t find that EXACT percentage on the table, then there should be two VERY CLOSE numbers, one just under the percentage you’re looking for, and one just over it. Either one of those two is fine—so just pick the one that appears in the answer options below).A bottle of medicine is to be stored at a temperature between 5C and 10C. What range does this correspond to on the Fahrenheit scale?Almost there...round the percentages to three significant digits, and make sure to label the axes of the bar chart.
- Find the proportion of observations such that z > 2.85 z (Enter your answer rounded to four decimal places.)Q1 / The average internal diameter measurements of iron tubes (M = 10 cm), if you know that 88% of the company's production is within the limits of the specification (M + 0.07, M-0.07), calculate the percentage of pipes with a diameter greater than 9.5 cm.Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims.
- Which of the following is the correct formula for the margin of error of a proportion? EBM =z⋅σ√n=z⋅σn EBP =z⋅√p'⋅q'n=z⋅p′⋅q′n EBM =t⋅s√n=t⋅sn t=¯x−μs√nThe average daily attendance for horror movies over the summers during the years 2007 to 2009 is documented in the table below. If the auditorium has an area of 2,025 ft^2, which of the following statements best describes the percent increase each year in terms of people per square foot of the auditorium? Year Number of Tickets Sold 2007 558 2008 623 2009 699 The movie theatre auditorium was more crowded in 2008 than in 2009. The largest annual percent increase in density occurred from 2008 to 2009. The smallest annual percent increase in density occurred from 2007 to 2008. The largest annual percent increase in density occurred from 2007 to 2008.Find the z-score that cuts off 35% in the tail on the right. (Hint: if you can’t find that EXACT percentage on the table, then there should be two VERY CLOSE numbers, one just under the percentage you’re looking for, and one just over it. Either one of those two is fine—so just pick the one that appears in the answer options below). Group of answer choices