a) Work out the zscore of the sample proportion of customers from country A, if the hypothesis p=0.9...

Question

a) Work out the zscore of the sample proportion of customers from country A, if the hypothesis p=0.9 is true

b) Work out the zscore of the sample proportion of customers from country A, if the hypothesis p=0.5 is true

c) Find a 95% confidence interval for the average of the variable “How much would they pay?” if the hypothesis they are on ship A is true.

d) Find a 95% confidence interval for the average of the variable “How much would they pay?” if the hypothesis they are on ship B is true.

e) Paste in the output for testing the claim there is a relationship between the variables “How much ingredient X?” and “How much would they pay?” and add suitable comments.

f) Paste in the output for testing the claim there is a relationship between the “Which ship?” and “Amount they would pay?” and add suitable comments.

g) Paste in the output for testing the claim there is a relationship between the “Which country?” and “Amount they would pay?” and add suitable comments.

h) Paste in the output for testing the claim there is a relationship between the “Which country?” and “which ship?” and add suitable comments.

i) Discuss at least two of the following topics it is OK if there is no

connection between your discussions of the different topics.

Topic 1: demographics

Topic 2: snack food ingredients

Topic 3: cruise ships

Topic 4: Histograms

If you write a total of 600 words is OK it is also OK to use less words if you are making well considered points, If you use references cite the references and add a reference list at the end of the assignment, however you can work out some obvious points that are related to the dataset yourself without using references.

j) Answer one of the following questions

Question 1

Are your discussions in part (m) related to any of the previous parts? Explain why or why not.

300 words is OK it is also OK to use less words if you are making well considered points

Question 2

Discuss what you learnt about summarizing datasets when doing parts

a),b),c) and d) of the assignment ? Do your discussions in part m) give you an example of why you want to summarize datasets.

k) Comment on the format of the sample report. Given at the end of this document (pages 6 to 19)

Pooja · Accepted Answer

a) Relationship between “How much ingredient X?” and “How much would they pay
	correlation coefficient =
	0.994
There is a strong negative linear relationship between How much Ingredient X and How much would they pay. With the increase in value of How much Ingredient X, the value of How much would they pay decreases drastically. 
b) Relationship between the “Which ship?” and “How much would they pay?
	Row Labels
	Average of How much would they pay?
	ship  B
	24.905
	ship A
	24.947
	Grand Total
	24.926
There is not much difference in the average amount paid by customers who belong to ship A and B. average amount paid by customers who belong to ship A is 24.94 against 24.9 who belong to ship B respectively. 
c) Relationship between “Which country?” and “How much would they pay?”
	Row Labels
	Average of How much would they pay?
	country A
	25.28865979
	country B
	24.58446602
	Grand Total
	24.926
There is not much difference in the average amount paid by customers who belong to country A and B. average amount paid by customers who belong to country A is 25.28 against 24.58 who belong to country B respectively. 
d) Relationship between “Which country?” and “which ship”
	Count of which country ?
	Column Labels
	
	
	Row Labels
	ship  B
	ship A
	Grand Total
	country A
	26
	71
	97
	country B
	74
	29
	103
	Grand Total
	100
	100
	200
The maximum number of customers are from ship B and country B. There is a total of 74 customers who belong to ship B and country B. there are 71 customers from ship B and country B. the minimum number of customers belong to Ship B and country A.
e) z-score for proportion of customers from country A when p=0.9
	Row Labels
	Count of which country ?
	country A
	97
	country B
	103
	Grand Total
	200
Phat = x/n = 97/200 = 0.485
Ho: p = 0.9 v/s h1: p =/= 0.9
z score, z = (phat-p)/sqrt(p*(1-p)/n) = (0.485-0.9)/SQRT(0.9*(1-0.9)/200) = -19.

a) Work out the zscore of the sample proportion of customers from country A, if the hypothesis p=0.9 is true b) Work out the zscore of the sample proportion of customers from country A, if the...

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