Question 1 A bank offers three types of welcoming gifts to VISA card applicants. Gift A: $400 supermarket coupon Gift B: a 2-persons tea set voucher Gift C: 8 sets of movie tickets Based on the table below, construct a 95% confidence interval estimate of the population proportion of applicants choose $400 supermarket coupon. The choice made by a random sample of 40 applicants is as follow: В A В C A A C A B A A В A C В B A A В A В A В A C A A A A A В A A B Question 2 In a city, according to a 1990 demographic report based on the census result, the average daily spending on food per person is $75. In 2020, a random sample of 28 persons in the same city is selected and the daily spending ($) on food for each interviewee is recorded as follow: 55.0 59.5 62.5 65.5 68.5 69.0 70.0 70.0 82.0 82.5 83.5 85.0 86.0 86.5 86.5 87.0 87.0 87.0 89.0 92.5 93.0 94.5 94.5 96.0 98.0 102.5 108.5 110.5 (a) Find the point estimate for the population mean daily spending on food per person in year 2020. (b) It is assumed that the spending is normally distributed. Construct a 90% confidence interval estimate for the population mean daily spending on food per person in year 2020. (c) Is there sufficient evidence to conclude that the population mean daily spending on food per person in 2020 is higher than 1990? Test at 1% level of significance. (State clearly the null hypothesis, alternatively hypothesis, rejection region, test statistics and conclusion.) ABACA

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
100%

I dont know how to do the assignment both Q1 and Q2
Can you please teach me step by step and calculate with calculator only.

Many thanks

(Show your calculation steps. Correct you answer to 4 decimal places and report the measurement unit
when applicable)
Question 1
A bank offers three types of welcoming gifts to VISA card applicants.
Gift A: $400 supermarket coupon
Gift B: a 2-persons tea set voucher
Gift C: 8 sets of movie tickets
Based on the table below, construct a 95% confidence interval estimate of the population proportion of
applicants choose $400 supermarket coupon.
The choice made by a random sample of 40 applicants is as follow:
В
A
C
A
A
B
A
A
В
A
C
В
В
A
В
A
В
A
В
A
C
A
C
A
C
A
A
A
В
A
A
В
A
Question 2
In a city, according to a 1990 demographic report based on the census result, the average daily spending on
food per person is $75.
In 2020, a random sample of 28 persons in the same city is selected and the daily spending ($) on food for
each interviewee is recorded as follow:
55.0
59.5
62.5
65.5
68.5
69.0
70.0
70.0
82.0
82.5
83.5
85.0
86.0
86.5
86.5
87.0
87.0
87.0
89.0
92.5
93.0
94.5
94.5
96.0
98.0
102.5
108.5
110.5
(a) Find the point estimate for the population mean daily spending on food per person in year 2020.
(b) It is assumed that the spending is normally distributed.
Construct a 90% confidence interval estimate
for the population mean daily spending on food per person in year 2020.
(c) Is there sufficient evidence to conclude that the population mean daily spending on food per person in
2020 is higher than 1990? Test at 1% level of significance. (State clearly the null hypothesis,
alternatively hypothesis, rejection region, test statistics and conclusion.)
AB
BABA
Transcribed Image Text:(Show your calculation steps. Correct you answer to 4 decimal places and report the measurement unit when applicable) Question 1 A bank offers three types of welcoming gifts to VISA card applicants. Gift A: $400 supermarket coupon Gift B: a 2-persons tea set voucher Gift C: 8 sets of movie tickets Based on the table below, construct a 95% confidence interval estimate of the population proportion of applicants choose $400 supermarket coupon. The choice made by a random sample of 40 applicants is as follow: В A C A A B A A В A C В В A В A В A В A C A C A C A A A В A A В A Question 2 In a city, according to a 1990 demographic report based on the census result, the average daily spending on food per person is $75. In 2020, a random sample of 28 persons in the same city is selected and the daily spending ($) on food for each interviewee is recorded as follow: 55.0 59.5 62.5 65.5 68.5 69.0 70.0 70.0 82.0 82.5 83.5 85.0 86.0 86.5 86.5 87.0 87.0 87.0 89.0 92.5 93.0 94.5 94.5 96.0 98.0 102.5 108.5 110.5 (a) Find the point estimate for the population mean daily spending on food per person in year 2020. (b) It is assumed that the spending is normally distributed. Construct a 90% confidence interval estimate for the population mean daily spending on food per person in year 2020. (c) Is there sufficient evidence to conclude that the population mean daily spending on food per person in 2020 is higher than 1990? Test at 1% level of significance. (State clearly the null hypothesis, alternatively hypothesis, rejection region, test statistics and conclusion.) AB BABA
Expert Solution
steps

Step by step

Solved in 2 steps with 15 images

Blurred answer
Knowledge Booster
Linear Equations
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman