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The average weight of the entire batch of the boxes of cereal filled today was 20.15 ounces. A random sample of four boxes was selected with the following weights: 20.05, 20.56, 20.72, and 20.43. The sampling error for this sample is _______.
Business Economics, Economics
A production system has two spares of a critical component that have average uptime 1/lamba = 1 month. Find the probability that the 3 components (the operating one and the two spares) will last more than 6 months. Assum ...
Manny, Moe and Jack have the following demand curves for pears: QManny = 100 - 2P = 70 - 2P + 10 Ppear + .25 YManny where P Pear = 2 and YManny = 40. QMoe = 300 - 4P = 80 - 4P + 35 Ppear + .75 YMoe where P Pear = 2 and Y ...
If unemployment rate is 5.5% and underemployed, unemployed and discouraged workers is 8.4%. What is % of underemployed and discouraged. Is it as easy as just 8.4-5.5?
If two samples A and B had the same mean and sample size, but sample A had a larger standard deviation, which sample would have the wider 95% confidence interval?
Q1. The market for apples is perfectly competitive. Say a typical firm has a marginal cost function of MC(q) = 2q. (1) The optimal quantity of apples to produce is 10 for the typical firm. How much revenue does the firm ...
Identify how protecting sovereign boundaries in regards to intellectual property has a positive effect on the GDP . Your answer should be in complete sentences
Sally purchases hardwood lumber for a custom furniture-building shop. She uses three suppliers, Northern Hardwoods, Mountain Top, and Spring Valley. Lumber is classi ed as either clear or has defects. Sally estimates tha ...
Elasticity: 4% (Please show your steps and calculation- use Arc elasticity) In year one, Mike's income was $56,000 and went to the movies a total of 24 times. The next year, Mike's income increases to $68,000 and he saw ...
What changes would you propose if you were on the central planning committee that made decisions for your city?
Doctor wants the estimate the HDL cholesterol of all 20 to 29 year old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confidence assuming o=18.2? Suppose the doctor would b ...
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