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Null hypothesis A college professor believes that 50% of her students will get an A on their midterm exams. She draws a random sample from her classes and discovers that the sample proportion of midterm A’s is 54%. If she wants to test H0: p less than or equal to 0.5 (50% or fewer of […]

Price Discrimination GM wants to run an innovative promotion to sell more cars. They want to price discriminate, since their economic consultant suggested they look into it. Which of the following would make more sense if the goal was to make more money from price discrimination? A. Give the $1000 discount to people who live […]

Carbon Dating <p>A wooden door lintel form an excavated site in mexico is 9.0E5 years old. What is the concentration ratio of old to new C-14? The half life of C-14 is 5730 years. </p> Carbon Dating Is this the question you were looking for? If so, place your order here to get started!

calculate the kinetic energy Calculate the kinetic energy of an oxygen molecule (O2) moving at a speed of 3010 m/s (the answer should be 96.3 J) calculate the kinetic energy Is this the question you were looking for? If so, place your order here to get started!

Means and Medians I am calculating the means and medians of several lists of hours worked for several employees.I would like to calculate the mean and median hours worked for each day and for the week. I understand mean and median and I know how to calculate the daily totals. What I am wondering is […]

Freezing point What is the freezing point in (C) of each of the solutions below? For water, Kf=1.86 (Ckg)/mol. The vapor pressure of water at 45.0 C is 71.93mm Hg. 1. A solution of 12.5 g of urea, CH4N2O, in 135 g of water at 45 C 2. A solution of 12.5 g of LiCL […]

Unit Cell An element has hcp packing with a hexagonal unit cell. Its density is 3000 kg/m3 and the unit cell volume is 5.00 x 10-23 cm3. Calculate the molar mass (g/mol) of the element to three significant figures Unit Cell Is this the question you were looking for? If so, place your order here […]

What is the conclusion with details for: There isn’t significant linear correlation between scores on an English test and scores on a math test…..r=0.11,ns” thanks! What is the conclusion with details for: Is this the question you were looking for? If so, place your order here to get started!

Which of the following diatomic molecules has the greatest bond energy? A). Cl2 B0 HCL C) CO D) H2 E) HF Which of the following diatomic molecules has the greatest bond energy? Is this the question you were looking for? If so, place your order here to get started!

Partial Pressure Consider the following reaction: SO2CL2 IS AT EQUILIBRIUM WITH SO2 + CL2 Kp= 2.91 X10^ 3 In a reaction at equilibrium, the partial pressure of is 110 TORR and that of is 267 TORR. What is the partial pressure of SO2CL2 in this mixture? Partial Pressure Is this the question you were looking […]