Stat1070 assignment 2 q2, pmba 305 – module 3 & 4 quantitative


Module #3: Sampling Distributions, Estimates, and Hypothesis Testing  & Module #4: Two-Sample Tests and Simple Linear RegressionSample questions are as under:

SAMPLE QUESTIONS:

 

[1] In an season in Marketing Science, Silk and Berndt summon the output of advertising agencies.  They portray ad production output by decision the divides of dollar billing compass hence from several instrument categories such as network television, blot television, newspaper, radio, and so forth.

Suppose that a haphazard case of 400 U.S. advertising agencies gives an middle percentage divide of billing compass from network television similar to 7.46 percent after a while a trutination rupture of 1.42 percent.  Further, think that a haphazard case of 400 U.S. advertising agencies gives an middle percentage divide of billing compass from blot television commercials similar to 12.44 percent after a while a trutination rupture of 1.55 percent.

 

Using the case notice, does it show that the balance percentage divide of billing compass from blot television commercials for the U.S. advertising agencies is superior than the balance percentage divide of billing compass from network television?  Explain.

 

[2] In March 16, 1998, children of Fortune magazine, the results of a review of 2,221 MBA students from counter the United States conducted by the Stockholm-based academic consulting robust Universum showed that merely 20 percent of MBA students foresee to remain at their primitive job five years or over.  Source: Shalley Branch, "MBAs: What Do They Really Want," Fortune (March 16, 1998), p.167.

a)    Assuming that a haphazard case was separated, erect a 98% reliance season for the adaptation of all U.S. MBA students who foresee to remain at their primitive job five years or over.

 

b)    Based on the season from a), can you deduce that there is secure manifestation that close than one-fourth of all U.S. MBA students foresee to remain?  Explain why.

ALL 34 QUESTIONS ARE ATTACHED HEREWITH IN SEPARATE WORD FILE.