Thirty (30) individual LED are weighted (in kg). Calculate the central line, upper, and lower limits. 5.4 2.8 5.1 1.0 7.9 8.6 5.3 8.4 3.0 3.4 9.5 6.3 1.0 6.0 4.0 3.9 1.2 7.2 0.9 9.8 7.1 8.0 5.2 6.9 5.7 5.9 5.5 9.8 0.6 0.0
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- The heights (in cm) of 11 players of a team are as follows:160, 158, 158, 159, 160, 160, 162, 165, 166, 167, 170. Calculate measures of central tendencWhat is the approximate forecast for November using a four-month moving average? Oct - 700Sept - 600Aug - 880July - 670June - 430Sick days During contract negotiations, a company seeks tochange the number of sick days employees may take, sayingthat the annual “average” is 7 days of absence per employee.The union negotiators counter that the “average” employeemisses only 3 days of work each year. Explain how bothsides might be correct, identifying the measure of center youthink each side is using and why the difference might exist.
- The registrar’s office at ACC predicts that 90% of the 6,950 spaces open in various math classes will be available during the first week of registration. If 90% of the spaces are open, what percent of the spaces will be filled after the first week of registration? 10 %. A good estimate of the number of spaces that will be filled after the first week of registration is234, 180, 315, 580, 508, 331, 448, 390, 276, 432 find rhe standards deviationA 2014 Honda Civic hybrid costs $24,635. This car is supposed to get 44 miles per gallon in regular city driving and 47 mpg on the highway.2 A completely gas‐powered 2014 Honda Civic costs $18,390. This car is supposed to get 30 mpg in city driving and 39 mpg on the highway.3 1. What additional information is necessary to determine how much money will be spent on gas in a year of driving one of these vehicles? Write down some reasonable values for any missing information. 2. If you purchase the hybrid Civic, how much money would you save in gasoline purchases the first year? 3. How long would it take for the gasoline savings to make up for the additional cost of the hybrid?
- . c) Estimate the percentage of student supporting online education. d) Compute the weight for the students living in Muscat and not living in Muscat e) Obtain the weighted frequencies of the survey respondents in a table like the one as above f) Compute weighted estimate for the percentage of students supporting online education. Compare this estimate with unweighted estimate obtained in (c) and comment.monique collects data rom a random sample of seventh gradesers in her school and finds that 10 out of 25 seventh graders participate in after school activeities write and solve a proportion to estimate the number of seventh graders n who participate in after school activeities of 190 seventh graders attened monique's schoolA programmer plans to develop a new software system. In planning for the operating system that he will use, hee needs to estimate the percentage of computers that use a new operating system. How many computers must be surveryed in order to be 90% confident that his estimate is in error by no more than one percentage point. Complete part (a) through (c) below. a. n= b Assummer that a recent survey suggests that about 86% of computers use a new operating system. c. Does the additional survey information from part (b) have much of an effect on the sample size that is required?
- When the light turns yellow, should you stop or go through it? An article defines the “indecision zone” as the period when a vehicle is between 2.5 and 5.5 seconds away from an intersection. At the intersection of Route 7 and North Shrewsbury in Clarendon, Vermont, 154 vehicles were observed to encounter a yellow light in the indecision zone, and 23 of them ran the red light. At the intersection of Route 62 and Paine Turnpike in Berlin, Vermont, 183 vehicles entered the intersection in the indecision zone, and 20 ran the red light. Can you conclude that the proportion of red-light runners differs between the two intersections? Find the P-value and state a conclusion. Round the answer to four decimal places. The P-value is 0.4472 0.4472 Incorrect . We can Incorrectconclude that the proportion of red-light runners differs between the two intersectionsA programmer plans to develop a new software system. In planning for the operating system that he will use, he needs to estimate the percentage of computers that use a new operating system. How many computers must be surveyed in order to be 90% confident that his estimate is in error by no more than two percentage points? a) Assume that nothing is known about the percentage of computers with new operating systems. n = __Solve until reaching a tolerance of ????−? or lower
