Homework Answers
First try to make histogram of the data and check
its distribution is unimodal and symmetric with no outliers.
We can also make a Normal probability plot to
see that it’s reasonably straight.
a) The smaller the sample size (n less than 15 ),
the more closely the data should follow a Normal model.
b) For moderate sample sizes (between 15 and 40),
the t works well as long as the data are unimodal and reasonably
symmetric.
c) For larger sample sizes(above 40),
the t test is safe to use unless the data are extremely skewed.
Add Answer to:
2) In addition to meeting the Randomization Condition and the Independence Assumption, a1 Sample t-Test must...
Which one the following statement is the required assumption for t-test? A large sample size. The...
Which one the following statement is the required assumption for t-test? A large sample size. The data follow a normal distribution. A known population standard deviation. A small sample size.
22. In which situation would it be inappropriate to use a nonparametric test? a. The sample...
22. In which situation would it be inappropriate to use a nonparametric test? a. The sample size is small and the population distribution might be skewed. b. The dependent variable is scale. c. The dependent variable is nominal. d. The dependent variable is ordinal. 23. A chi-square test for independence is an appropriate statistical test to use when the study has: a. one nominal dependent variable. b. one scale independent variable. c. two nominal dependent variables. d. two scale independent...
A. Introduction and Objective Every test has at least two sources of variation that affect the results of...
A. Introduction and Objective Every test has at least two sources of variation that affect the results of the test. The first source of variation is due to the experimental procedure, such as using two different testing machines that have different calibrations, or different observers reading the same equipment differently. This type of variation is often called the experimental error The second source of variation is inherent in the specimens (or sample population) themselves. In other words, no two specimens...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male t...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
Please read the facts of the case and prepare answers for the following questions : 1...
Please read the facts of the case and prepare answers for the
following questions :
1 – What is the relevance of the $2,000 monthly payment
to Dave Verden on the analysis of Jones’ financing needs?
2 – What metrics could you use to compare the historical financial
results for Jones with the projected financial results under the
four defined scenarios?
3 – Other than financing needs, what other issues should Jones
address as he considers the different growth
scenarios?...
Read below and answer, Why does a business that has profit of $30,000 per year need...
Read below and answer, Why does a business that has profit of
$30,000 per year need a bank loan?
Jones Electrical Distribution After several years of rapid growth, in the spring of 2007 Jones Electrical Distribution anticipated a further substantial increase in sales. Despite good profits, the company had experienced a shortage of cash and had found it necessary to increase its borrowing from Metropolitan Bank-a local one- branch bank-to $250,000 in 2006. The maximum loan that Metropolitan would make...
2) compute contribution margin for each channel 3) compute break even point (in terms of number...
2) compute contribution margin for each channel
3) compute break even point (in terms of number of orders and
dollars) for each distribution channel
(HINT - Fixed costs are all trade show expenses. Use
depreciation for the booth as a fixed cost. The booth cost should
be considered an investment not a fixed cost)
4) Calculate the number of orders at a target profit of
$100,000
5) Calculate the profitability for both the low and high order
estimates
We were...
SYNOPSIS The product manager for coffee development at Kraft Canada must decide whether to introduce the...
SYNOPSIS The product manager for coffee development at Kraft Canada must decide whether to introduce the company's new line of single-serve coffee pods or to await results from the product's launch in the United States. Key strategic decisions include choosing the target market to focus on and determining the value proposition to emphasize. Important questions are also raised in regard to how the new product should be branded, the flavors to offer, whether Kraft should use traditional distribution channels or...
summarizr the followung info and write them in your own words and break them into different...
summarizr the followung info and write them in your own words and break them into different key points. 6.5 Metering Chamber: 6.5.1 The minimum size of the metering box is governed by the metering area required to obtain a representative test area for the specimen (see 7.2) and for maintenance of reasonable test accuracy. For example, for specimens incorporating air spaces or stud spaces, the metering area shall span an integral number of spaces (see 5.5). The depth of...
I need help with my very last assignment of this term PLEASE!!, and here are the instructions: After reading Chapter T...
I need help with my very last assignment of this term
PLEASE!!, and here are the instructions: After reading Chapter Two,
“Keys to Successful IT Governance,” from Roger Kroft and Guy
Scalzi’s book entitled, IT Governance in Hospitals and Health
Systems, please refer to the following assignment instructions
below.
This chapter consists of interviews with executives
identifying mistakes that are made when governing healthcare
information technology (IT). The chapter is broken down into
subheadings listing areas of importance to understand...
22. In which situation would it be inappropriate to use a nonparametric test? a. The sample size is small and the population distribution might be skewed. b. The dependent variable is scale. c. The dependent variable is nominal. d. The dependent variable is ordinal. 23. A chi-square test for independence is an appropriate statistical test to use when the study has: a. one nominal dependent variable. b. one scale independent variable. c. two nominal dependent variables. d. two scale independent...
A. Introduction and Objective Every test has at least two sources of variation that affect the results of the test. The first source of variation is due to the experimental procedure, such as using two different testing machines that have different calibrations, or different observers reading the same equipment differently. This type of variation is often called the experimental error The second source of variation is inherent in the specimens (or sample population) themselves. In other words, no two specimens...
TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
Please read the facts of the case and prepare answers for the
following questions :
1 – What is the relevance of the $2,000 monthly payment
to Dave Verden on the analysis of Jones’ financing needs?
2 – What metrics could you use to compare the historical financial
results for Jones with the projected financial results under the
four defined scenarios?
3 – Other than financing needs, what other issues should Jones
address as he considers the different growth
scenarios?...
Read below and answer, Why does a business that has profit of
$30,000 per year need a bank loan?
Jones Electrical Distribution After several years of rapid growth, in the spring of 2007 Jones Electrical Distribution anticipated a further substantial increase in sales. Despite good profits, the company had experienced a shortage of cash and had found it necessary to increase its borrowing from Metropolitan Bank-a local one- branch bank-to $250,000 in 2006. The maximum loan that Metropolitan would make...
2) compute contribution margin for each channel
3) compute break even point (in terms of number of orders and
dollars) for each distribution channel
(HINT - Fixed costs are all trade show expenses. Use
depreciation for the booth as a fixed cost. The booth cost should
be considered an investment not a fixed cost)
4) Calculate the number of orders at a target profit of
$100,000
5) Calculate the profitability for both the low and high order
estimates
We were...
SYNOPSIS The product manager for coffee development at Kraft Canada must decide whether to introduce the company's new line of single-serve coffee pods or to await results from the product's launch in the United States. Key strategic decisions include choosing the target market to focus on and determining the value proposition to emphasize. Important questions are also raised in regard to how the new product should be branded, the flavors to offer, whether Kraft should use traditional distribution channels or...
I need help with my very last assignment of this term
PLEASE!!, and here are the instructions: After reading Chapter Two,
“Keys to Successful IT Governance,” from Roger Kroft and Guy
Scalzi’s book entitled, IT Governance in Hospitals and Health
Systems, please refer to the following assignment instructions
below.
This chapter consists of interviews with executives
identifying mistakes that are made when governing healthcare
information technology (IT). The chapter is broken down into
subheadings listing areas of importance to understand...
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