b. a measurement (Y0) is a function of the true score plus systematic error.
c. a measurement (Y0) is a function of the true score plus random error.
d. a measurement (Y0) is a function of the true score plus systematic error plus random
error.
e. a measurement always equals the true score
A researcher is interested in comparing the usage of bank debit cards by consumers in
rural (r) and urban (u) areas. Each year for the past five years, she has surveyed 500
individuals (one’‘half urban, one’‘half rural) randomly selected from across the United
States. She is specifically interested in any differences that may exist between the two
groups with regard to usage. The results of the current study indicate that people in
urban areas use bank debit cards 12 times per month on average (xu), while those in
rural areas use bank cards 10 times per month on average (xr).
Given that the critical value that the test statistic is to be compared with is equal to
1.645 at a 90% significance level, which of the following statements are true?
a. The researcher should reject the null hypothesis at the 90% significance level.
b. The researcher might be able to reject the null hypothesis at the 95% level of
significance.
c. The researcher cannot reject the null hypothesis at this significance level.
d. The researcher has provided evidence that people in urban areas use bank debit cards
more than people in rural areas.
e. More information is needed before a decision about the null hypothesis can be made.