Math/Physic/Economic/Statistic Problems
Is the proportion of people who consider shopping at Amazon Fresh greater than 50%?
Is the proportion of people who consider shopping at Amazon Fresh different between those who are comfortable with mobile technology and those who are not?
Are you comfortable with mobile technology?
0. No 1. Yes
Would you consider shopping at AMAZON Fresh?
0. No 1. Yes
Refer to the second section of this instrument, name the concept that is measured and in how many factors it was subdivided. How many items form each factor? [Max: 50 words]
The article refers to the Cronbach 𝛼 coefficients. What do these represent and why it is important to include them in this paper? [Max: 100 words]
Name and explain the sampling method used for the collection of data. Explain whether the responses were random and independent by giving evidence from the text.
[Max: 100 words]
Referring to the section “Demographic variables in the use of self-checkout counters”, the authors have concluded that there is no difference in the use of self-checkout counters across different demographic segments. What evidence have they given to evidence this conclusion?
In the same section, the report for the chi-squared test against the variable “Age” reads “𝜒2(4) = 4.06, 𝑝 = 0.40, 𝜙 = 0.07”. What is “4” in this report and explain how it was calculated? [Max: 30 words]
Referring to the section “Evaluation of self-checkout counters”, an independent t-test was used to compare the average scores for all the measures between users and non-users. Explain what could be the reason that all the test results were found to be statistically significant but with moderate effect sizes. [Max: 50 words]
The authors referred to a “recent” study. What does this study suggest and what future research could be conducted to test it? [Max: 50 words]
