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PROJECT ON STUDENTS WHO ARE USING MTA TRAINS TO COMMUTE
Students Who Are Using MTA Trains to Commute
Research and Stats for Managers
Chirag Modi
Student ID 0172453
PROJECT ON STUDENTS WHO ARE USING MT
Chirag P. Modi
Stats Week 1 Assignment
Question 1.31- What is the difference between a sample and a population?
A sample is a subset of people, items, or challenge from a above citizenry that you accu
Chirag P. Modi
Stats Week 2 Assignment
Question 2.73- What is the difference between a statistic and a parameter?
Ans: Parameters and statistics are both numbers which are calculated. The difference a
Qs. 6.38: Why is only one normal distribution table such as Table E.2 needed to find any probability
under the normal curve?
Ans: The Normal Probability Distribution is very common in the field of sta
1
JANICE & JOHN
Chirag P. Modi
Monroe College
Research and Stats for Managers
Jack and Janice Ethical Issue
2
JANICE & JOHN
Business, which is known as a firm or enterprise. The business is conducted
Qs- 3.50: What are the properties of a set of numerical data?
Ans:
Central Tendency: arithmetic mean, geometric mean, median, mode.
Variability: range, interquartile range, variance, standard deviat
Qs. 9.61: What is the difference between a null hypothesis, H0, and an alternative hypothesis, H1?
Ans: 1. A null hypothesis is a statistical hypothesis which is the original or default hypothesis
whi
Qs. 12.51: Under what conditions should you use the X2 test to determine whether there is a
difference between the proportions of two independent populations?
Ans: The hypothesis-testing procedure use
Qs. 4.38: What are the differences between a priori probability, empirical probability, and
subjective probability?
Ans:
Empirical probability is what you compute from historical data
A priori probabi
Qs. 8.50: Why can you never really have 100% confidence of currently estimating the population
characteristics of interest?
Ans:
Confidence Intervals Confidence interval (CI) is a parameter with a deg
Qs. 5.49: What is the meaning of the expected value of a probability distribution?
Ans: Two variables with the same probability distribution will have the same expected value, if it
is defined. It fol