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- The following figures show the distribution of digits in numbers chosen at random from a telephone directory. Digit 0 1 2 3 4 5 6 7 8 9 Frequency 1026 1107 997 966 1075 933 1107 972 964 853 Test at 5 % level whether digits may be taken to occur equally frequently in the directory.A random sample of householders were classified using the characteristics namely Digital TV and Smart TV and results recorded as follows: Owner occupierCouncil TenantPrivate Tenant Smart TV946753 Digital TV13011145 Black/ White TV806526 Test for independent at 5%.The following is the data set for specific research regarding a certain product 15 19 14 20 13 23 16 25 17 12 20 11 23 10 14 11 25 12 11 15 8 17 8 18 16 19 17 19 24 What is the range of the data set? How many class intervals should be constructed? How many elements does the class width has? What is the frequency of the class interval with the highest value? What is the >cf of the 3rd to the highest class interval?
- The following data give the numbers of orders received for a sample of 30 items at the Time-saver Mail Order Company.34 44 31 52 41 47 38 35 32 3928 24 46 41 49 53 57 33 27 3730 27 45 38 34 46 36 30 47 50 1.3 Calculate the coefficient of variation and interpret the value obtained.Suppose the following table was generated from the sample data of 2020 campuses relating the total number of crimes committed to the number of police officers on campus and if the college or university is public. Coefficients Standard Error t Stat P-Value Intercept 571.671037571.671037 17.77444017.774440 32.16253432.162534 0.0000000.000000 Number of Officers −7.396761−7.396761 0.5838990.583899 −12.667877−12.667877 0.0000000.000000 Public (1 if public, 0 otherwise) −50.219334−50.219334 7.1156727.115672 −7.057567−7.057567 0.0000020.000002 Step 1 of 2 : In this regression equation, what is the intercept value for colleges or universities that are private? Enter your answer in the space provided. Do not round your answer.It was reported that in the nuclear industry, it is significant to keep detailed records of the quantity of plutonium received, transported, or used. Each shipment of plutonium pellets received is carefully analyzed to check that the purity and hence the total quantity is as claimed by the supplier. A particular shipment is analyzed with the following results: 99.93, 99.87, 99.91, and 99.89%. The listed purity as received from the supplier is 99.95%,Using a suitable test, propose whether this shipment is acceptable at a 95% confidence level.