Complete the 2nd table below by supplementing the data from the first table. Create 13 classes/groups using
7 as the class interval. The lowest value of the first class/group is the lowest value of the given set of data.
Thus the class mark of the first class is 10. The last class, class 13th, is from 91 to 97.

This data is a sample. The variance of this sample grouped data is 764.4   

Find the following: Mean using Short Method, Mode, SKP, SKB, SKK, Five number summary (Lowest and
highest value from the ungrouped data and Quartiles of the grouped data), normality and the outliers.




















X Values
25 38 44 94
65 61 55 92
56 65 21 78
22 60 88 87
18 44 41 8
96 10 32 8
42 84 8 44
96 54 21 63
7 63 25 40
47 87 39 80

A company has production factories in Vancouver, Montreal, and Toronto. There are three different production defects that can arise in the production process, we’ll call them defect A, defect B and defect C. During a recent week, the factories in the three cities reported the following occurrences of the three types of product defects: Vancouver Montreal Toronto Defect A 19 26 12 Defect B 21 16 28 Defect C 23 20 45

(a) Which factory has the highest percentage of type B defects? Provide the relevant percentages to support your answer.

(b) Compute the expected frequency table under the hypothesis that the type of production defect and the factory are independent variables.

(c) Compute the χ^2 test statistic and decide whether there is statistically significant evidence of an association between type of production defect and factory, using a significance level of 0.02.

(d) Which factory had a significantly larger than expected number of type A defects?

Green Hills University offers only graduate-level programs. Green Hills has two principal operating departments, Business and Sciences, and two support departments, Maintenance and Admission Services. The base used to allocate Maintenance services is budgeted total maintenance hours. The base used to allocate Admission services is number of credit hours for a department. The Maintenance budget is $700,000, while the Admission Services budget is $j1,100,000. The following chart summarizes budgeted amounts and allocation-base amounts used by each department:

Required:

Prepare a schedule which allocates service department costs using the step-down method with the sequence of allocation based on the highest-percentage support concept. Compute the total amount of support costs allocated to each of the two principal operating departments, Business and Sciences.

Molecular Orbital Theory

1.1 Which model, the Lewis electron dot structure or the MO energy level diagram, better describes the bonding in O₂? Remember that liquid O₂ is attracted into the magnetic field of a large magnet.

True or False.

_____ MO theory allows us to avoid the use of resonance.

_____ Resonance is a concept which arises from the limitations of Lewis electron dot structures

1.2 As we go from Li₂ to Li₃ to Li₄ to Li_n, the number of molecular orbitals formed from the 2s atomic orbitals goes from 2 to __ to __ to __ respectively, and the spacing between energy levels _________.

1.3 In the case of a metal, the lowest unoccupied MO is only infinitesimally higher in energy than the highest occupied MO, so it takes very little energy to cause electrons to move in a metal wire. In the case of a semiconductor, there is a _____ band gap between the full valence band and the empty conduction band. In the case of an insulator, there is a _____ band gap between the full valence band and the empty conduction band.

If a portfolio has a positive weight for each asset, can the expected return on the portfolio be greater than the return on the asset in the portfolio that has the highest return? Can theexpected return on the portfolio be less that the return on the asset in the portfolio with the lowest return? Explain.

If a portfolio has a positive weight for each asset, can the expected return on the portfolio be greater than the return on the asset in the portfolio that has the highest return? Can theexpected return on the portfolio be less that the return on the asset in the portfolio with the lowest return? Explain

Arrange the likely impedance in the following category of systems from the highest to lowest. Unearthed, solidly earthed, impedance earthed. (2

A neutral atom has the following characteristics: - it has 8 valence electrons - it's a main group element - the highest quantum level occupied is n = 4 What is the identity of this atom? Enter either the element name or symbol (case insensitive).

A neutral atom has the following characteristics: - it has 1 valence electron - it's a main group element - the highest quantum level occupied is n = 4 What is the identity of this atom? Enter either the element name or symbol (case insensitive).