Confidence interval for percentage of boards in shipment

Assignment Help Basic Statistics

Reference no: EM13150716

a truck with 8000 electronic circuit boards has just pulled into a firm's receiving dock. the supplier claims that no more than 3% of the boards fall outside the most rigid level of industy performance specifications. in a simple random sample of 300 boards from this shipment, 12 fall outside these specifications. construct the 95% confidence interval for the percentage of all boards in this shipment that fall outside the specifications.

Reference no: EM13150716

Questions Cloud

Pop culture reference : Find a pop culture reference (from TV, movie, music, magazine...) of an economic concept. The reference can be anything we have covered in class.

Find probability of completing exam in one hour : What is the probability of completing the exam in one hour or less (to 4 decimals)? What is the probability that a student will complete the exam in more than 60 minutes but less than 75 minutes.

Rraditional cost accounting system : Weber Corporation has used a traditional cost accounting system to apply quality control costs uniformly to all products at a rate of 15% of direct labor cost. Monthly direct labor costs for its main product is $30,000.

Equivalent units for materials and conversion : The ending WIP inventory on May 31 consisted of 10,000 units. These latter units were 100% complete with respect to materials and 80% complete with respect to conversion. Costs added during the month were $330,000 for materials and $503,750 for co..

Confidence interval for percentage of boards in shipment : 12 fall outside these specifications. construct the 95% confidence interval for the percentage of all boards in this shipment that fall outside the specifications.

Build a new restroom in the left field : The NHFishercats are debating whether to build a new restroom in the leftfield area near the patio adjoining the bar/restaurant located there

Sample size to be confident that estimate is given value : The minimum sample size needed in order for the union to be confident that its estimate is within of ? Suppose that the standard deviation of wages of foodservice workers in the U.S. is about .

What is the hypothesis and null hypothesis : The salaries at Smith and Company are based on the number of sales and Billy makes 3,000 dollars more than Joe? What is the hypothesis and Null Hypothesis?

Equivalent units in process for direct materials : Determine the equivalent units in process for direct materials and conversion costs, assuming there was no beginning inventory.

User Account

All Pages