S The profit made by 130 firms in a year are as follows. Find the arithmetic mena Profits (*000) Rs: 1-2 2-3 3-4 4-5 5-6 6-7 7-8 Total No. of firms: 5 27 36 28 20 11 3 130 Scanned with CamScanner
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- Find three arithmetic means between 2 and 8.Florida State University has 14 statistics classes scheduled for its Summer 2013 term. One class has space available for 30 students, eight classes have space for 60 students, one class has space for 70 students, and four classes have space for 100 students. Find the mean of X (Round to 2 decimal places)Twenty years ago, 51% of parents of children in high school felt it was aserious problem that high school students were not being taughtenough math and science. A recent survey found that 232 of 700parents of children in high school felt it was a serious problem that highschool students were not being taught enough math and science. Doparents feel differently today than they did twenty years ago? Use theα = 0.1 level of significance
- find the ff;using k= 7a. meanb. medianc. modeWhat Proportion of Adults and Teens Text Message? A study of n = 2252 adults age 18 or older found that 72% of the cell phone users send and receive text messages.A study of n=800 teens age 12 to 17 found that 87% of the teen cell phone users send and receive text messages. What is the best estimate for the difference in the proportion of cell phone users who use text messages, between adults (defined as 18 and over) and teens? Give notation (as a difference with a minus sign) for the quantity we are trying to estimate, notation for the quantity that gives the best estimate, and the value of the best estimate. Be sure to clearly define any parameters in the context of this situation.in a math class , studenys are given task of the collection of data on the age of custo,ers for a clothimg establishment of thier choosing George randmly selects days and times to gather data at the store on the stanford campus Mary randomly selrctd days and times to gather data a the in - n -out near the stanford campus out of the 2 , which studets data will have smallrer standard devaition .kindly explain why hint -ur answer must hint to what charcyeristics of data will lead to smaller st devaition
- Please, find Arithmetic Mean by using Coding method. ASAP Classes 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99 f 7 16 21 29 34 45 24 14 09 5Salaries of Government Employees The mean salaryof federal government employees on the GeneralSchedule is $59,593. The average salary of 30 stateemployees who do similar work is $58,800 withs $1500. At the 0.01 level of significance, can it beconcluded that state employees earn on average less thanfederal employees?A pharmacist received a prescription for a patient with rheumatoid arthritis calling for eight divided powders. The contents of which were to weigh 1 gram. To check his skill, he removed the contents from each paper after filling the prescription by the block and divide method. Then each of the divided powders were weighed as: 1.05, 0.89, 0.98, 1.02, 1.01, 0.94, 1.03 and 0.99. 5. From the computed arithmetic mean, what will be the computed percentage error. 6. What is the summation of the differences of the values of x? * 7. What is the computed mean deviation? * 8. What is the summation of the square of the differences of the values of x? * 9. What will be the denominator used in the formula in the computation for the standard deviation in this activity? 10. What is the computed standard deviation?