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General
You want to determine the lower control line for a p-chart for quality control purposes. You take several samples of a size of 50 items in your production process. From the samples you determine the fraction defective is 0.006 and the standard deviation is 0.001. If the desired confidence level is 99.7 percent, which of the following is the resulting LCL value for the line? A. 0.001 B. 0.002 C. 0.003 D. 0.004 E. None of these
General
4 months ago
A marketing research company desires to know the mean consumption of milk per week among males over age 25. A sample of 513 males over age 25 was drawn and the mean milk consumption was 2.9 liters. Assume that the population standard deviation is known to be 1.1 liters. Construct the 85% confidence interval for the mean consumption of milk among males over age 25. Round your answers to one decimal place.
General
4 months ago
Vince purchased a used car for $11,200. This make and model used car straight line depreciates to zero after 7 years. a. Identify the coordinates of the x- and y-intercepts for the depreciation equation. b. Determine the slope of the depreciation equation. c. Write the straight line depreciation equation that models this situation. d. Draw the graph of the straight line depreciation equation.
General
4 months ago
You want to put a 4 inch thick layer of topsoil for a new 28 ft by 14 ft garden. The dirt store sells by the cubic yards. How many cubic yards will you need to order? The store only sells in increments of 1/4 cubic yards.
General
4 months ago
Suppose we want to build a rectangular storage container with open top whose volume is $$12 cubic meters. Assume that the cost of materials for the base is$$12 dollars per square meter, and the cost of materials for the sides is $$8 dollars per square meter. The height of the box is three times the width of the base. What’s the least amount of money we can spend to build such a container?
General
4 months ago
Find the area under the standard normal probability distribution between the following pairs of z-scores. a. zequals0 and zequals1.00 e. zequalsminus1.00 and zequals0 b. zequals0 and zequals2.00 f. zequalsminus2.00 and zequals0 c. zequals0 and zequals3.00 g. zequalsnegative 1.49 and zequals0 d. zequals0 and zequals0.82 h. zequalsminus0.82 and zequals0
General
4 months ago
An arc on a circle measures 295°. The measure of the central angle, in radians, is within which range?0 to StartFraction pi Over 2 EndFraction radiansStartFraction pi Over 2 EndFraction to π radiansπ to StartFraction 3 pi Over 2 EndFraction radians StartFraction 3 pi Over 2 EndFraction to 2π radians
General
4 months ago
In a study, 39% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant. Among 10 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when 10 adults are randomly selected, 3 or fewer are in excellent health.
General
4 months ago
Shawn wants to use an elevator to carry identical packages having the same weight. Each package weighs 5 pounds and Shawn weighs 100 pounds. If the elevator can carry a maximum of 340 pounds at a time, which inequality shows the maximum number of packages, n, that Shawn can carry with himself in the elevator if he is the only passenger
General
4 months ago
Point B has coordinates (-2, -5). After a translation 4 units down, a reflection across the y-axis, and a translation 6 units up, what are the coordinates of the image
General
4 months ago
Three points of a function are graphed. A coordinate plane with 3 points plotted at (10, 18), (14, 24), and (18, 30).Which statement describes the function through the points?The function is a direct variation function with a constant of variation of 1.5.The function is a direct variation function with a constant of variation of 1.8.The function is linear but is not a direct variation function. The function is not a linear function.
General
5 months ago
Some experts believe that 24% of all freshwater fish in a country have such high levels of mercury that they are dangerous to eat. Suppose a fish market has 350 fish tested, and 80 of them have dangerous levels of mercury. Test the hypothesis that this sample is not from a population with 24% dangerous fish, assuming that this is a random sample. Use a significance level of 0.05. State the null and alternative hypothesis, determine the z-test statistic, find the p-value, does the conclusion support or reject the null.
General
5 months ago
An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed with a standard deviation of 45 hours. If a sample of 35 bulbs has an average life of 710 hours, find a 96% confidence interval for the population mean of all bulbs produced by this firm.
General
5 months ago
Please help!!!! I’ll mark you as brainliest if you get it correct
General
5 months ago
Prove that y=x² at x=0 has both a local and global minimum using first derivative test. I can prove it with a graph looking at it visually but how would you prove it with written words.
General
5 months ago
A theater is selling tickets for a performance. Mr. Smith purchased 8 senior tickets and 5 child tickets for $136 for his friends and family. Mr. Jackson purchased 4 senior tickets and 6 child tickets for $96. What is the price of a senior ticket?
General
5 months ago
use the general slicing method to find the volume of The solid whose base is the triangle with vertices (0 comma 0 ), (15 comma 0 ), and (0 comma 15 )and whose cross sections perpendicular to the base and parallel to the y-axis are semicircles
General
5 months ago
Tom bought his fiancée Marie a 3800 diamond engagement ring Marie discovers that the value of the ring appreciates 4% each year what is the value of the ring after 4 years
General
5 months ago
Kamille is attending a community college to obtain a two-year degree. the annual cost of tuition is $3,750. Kamille has obtained an annual scholarship of $1,250 and anual grants in the amount of $835. the remainder of kamille’s tuition and fees will be paid be paid for using student loans. At the end of the two-year degree, what will kamille’s student loan balance be ?
General
5 months ago
The mortgage foreclosure crisis that preceded the Great Recession impacted the U.S. economy in many ways, but it also impacted the foreclosure process itself as community activists better learned how to delay foreclosure and lenders became more wary of filing faulty documentation. Suppose the duration of the eight most recent foreclosures filed in the city of Boston (from the beginning of foreclosure proceedings to the filing of the foreclosure deed, transferring the property) has been 230 days, 420 days, 340 days, 367 days, 295 days, 314 days, 385 days, and 311 days. Assume the duration is normally distributed. Construct a 90% confidence interval for the mean duration of the foreclosure process in Boston.
General
5 months ago
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