MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Bartleby Related Questions Icon

Related questions

Question
A fruit seller claims that customers who purchases lemons are more likely to purchase limes. To test their claim,
they tally up the number of customers who purchase these two fruits in a given day. The observed frequencies are
given in the 2 x 2 contingency table below.
29.867
35.98
38.043
Complete the table of expected frequencies assuming the null hypothesis that buying lemons and buying limes are
independent.
bought lemons
did not buy lemons
totals
18.133
24.773
43.393
bought limes did not buy limes totals
27
56
15
34
42
90
bought lemons (expected)
did not buy lemons (expected)
29
19
48
(a) Find the expected frequency of customers who bought lemons and limes.
8.791
bought limes (expected) did not buy limes (expected)
(b)
(d)
(b) Find the expected frequency of customers who bought lemons but not limes.
4.822
21.776
26.133
32.641
1
2
(3 3
4
(a)
(c)
(c) Find the expected frequency of customers who bought limes but not lemons.
16.218
3.841
13.419
13.555
16.019
(d) Find the expected frequency of customers who bought neither lemons nor limes.
O 6.14
15.867
20.413
O24.775
(e) Determine the test statistic for a x² test of independence.
0.143
1.891
2.699
7.442
(f) Determine the degrees of freedom used when performing a x² test of independence.
(g) Determine the critical value to use when performing a X² test of independence with significance level
a = 0.05.
(h) Determine whether there is sufficient data to reject the null hypothesis and conclude that there is a dependent
relationship between purchasing lemons and limes at the a= 0.05 significance level.
Yes
expand button
Transcribed Image Text:A fruit seller claims that customers who purchases lemons are more likely to purchase limes. To test their claim, they tally up the number of customers who purchase these two fruits in a given day. The observed frequencies are given in the 2 x 2 contingency table below. 29.867 35.98 38.043 Complete the table of expected frequencies assuming the null hypothesis that buying lemons and buying limes are independent. bought lemons did not buy lemons totals 18.133 24.773 43.393 bought limes did not buy limes totals 27 56 15 34 42 90 bought lemons (expected) did not buy lemons (expected) 29 19 48 (a) Find the expected frequency of customers who bought lemons and limes. 8.791 bought limes (expected) did not buy limes (expected) (b) (d) (b) Find the expected frequency of customers who bought lemons but not limes. 4.822 21.776 26.133 32.641 1 2 (3 3 4 (a) (c) (c) Find the expected frequency of customers who bought limes but not lemons. 16.218 3.841 13.419 13.555 16.019 (d) Find the expected frequency of customers who bought neither lemons nor limes. O 6.14 15.867 20.413 O24.775 (e) Determine the test statistic for a x² test of independence. 0.143 1.891 2.699 7.442 (f) Determine the degrees of freedom used when performing a x² test of independence. (g) Determine the critical value to use when performing a X² test of independence with significance level a = 0.05. (h) Determine whether there is sufficient data to reject the null hypothesis and conclude that there is a dependent relationship between purchasing lemons and limes at the a= 0.05 significance level. Yes
Expert Solution
Check Mark
Knowledge Booster
Background pattern image
Similar questions
Recommended textbooks for you
Text book image
MATLAB: An Introduction with Applications
Statistics
ISBN:9781119256830
Author:Amos Gilat
Publisher:John Wiley & Sons Inc
Text book image
Probability and Statistics for Engineering and th...
Statistics
ISBN:9781305251809
Author:Jay L. Devore
Publisher:Cengage Learning
Text book image
Statistics for The Behavioral Sciences (MindTap C...
Statistics
ISBN:9781305504912
Author:Frederick J Gravetter, Larry B. Wallnau
Publisher:Cengage Learning
Text book image
Elementary Statistics: Picturing the World (7th E...
Statistics
ISBN:9780134683416
Author:Ron Larson, Betsy Farber
Publisher:PEARSON
Text book image
The Basic Practice of Statistics
Statistics
ISBN:9781319042578
Author:David S. Moore, William I. Notz, Michael A. Fligner
Publisher:W. H. Freeman
Text book image
Introduction to the Practice of Statistics
Statistics
ISBN:9781319013387
Author:David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:W. H. Freeman