Blog

If the total degrees of freedom in the ANOVA is 23, how many levels does the factor of interest have?  

Suppose that the study was run over 8 days to account for day-to-day shifts (e.g., system updates, server load, room noise, proctor differences). Each day served as a block and included one test of each layout (4 tests per day) with different participants. Assignment of participants to layouts and the within-day test order were randomized. The observations (response values) and the effect of the keyboard layout remain the same.  Only the data layout (now with blocks) changed. Given this new information, fill in the following components of the ANOVA table (numeric only; no text, symbols or units): SSFactor = [ssfactor] SSTotal = [sstotal] Degrees of freedom due to the block =[dfblock] Degrees of freedom due to error = [dferror] Total degrees of freedom = [dftotal]

Increasing the number of facilities increases facility and transportation costs but reduces inventory costs and response time.

As long as inbound transportation economies of scale are maintained, increasing the number of facilities decreases total transportation costs.

GRAMÁTICA. Órdenes. Completa las siguientes oraciones conjugando los verbos apropiados como órdenes directas informales (“tú”). Commands. Complete the following sentences with the correct verbs, conjugated as direct informal/familiar commands for “tú”.    apagar      bailar     llenar      trabajar   grabar     planchar      barrer   guardar   a. _______________________ los documentos en la computadora.   b. _______________________ el televisor ya. c. _______________________ en la oficina 8 horas.  

VOCABULARIO. ¿Cómo se dice en español…? How do you say in Spanish…? Translate the following sentences to Spanish.   a. I download a browser to my laptop.  ____________________________________________________________________________________________ b. The wireless connection is slow. ____________________________________________________________________________________________ c. Send the file to my cellphone. ____________________________________________________________________________________________      

GRAMÁTICA. ¿Por o para? Elige la preposición correcta. Choose the correct preposition. (2 puntos) a. Completo la tarea de español ________ el 14 de septiembre. b. Viajo a Lancaster_______ tren. c. Usamos la computadora ______ escribir.

Faux leather purses are considered inferior goods. What would happen to the equilibrium price and quantity of faux leather purses if income decreased and more firms started producing faux leather purses?

The market for watches is perfectly competitive and is currently in equilibrium. What will happen if  wearing watches becomes more popular?

Is this firm whose cost curves are show below earning positive, negative, or zero economic profits?