Hi, I would like to know how to solve this sample question step by step with explanation as I am new to this topic. (Idk why the sysrem flags this as a graded question or whatever but its not and I need help understanding. Please do not reject) A study was conducted to determine whether big-city and small-town dwellers differed in their helpfulness to strangers. In this study, the investigators rang the doorbells of strangers living in a large city or small towns in the vicinity. They explained they had misplaced the address of a friend living in the neighbourhood and asked to use the phone. The following data show the number of individuals who admitted or did not admit the strangers (the investigators) into their homes: strangers admitted into their home by big city dwellers : 60 strangers not admitted into their home by big city dwellers : 90 strangers admitted into their home by small town dwellers : 70 strangers not admitted into their home by small town dwellers : 30 Do big-city dwellers differ in their helpfulness to strangers? Use alpha = 0.05. For this question be sure to do the following: ▪ State the statistical hypotheses (using the appropriate notation) ▪ Set the decision rules, which will include: o State alpha o Compute the degrees of freedom o Providing the critical value for the test statistic o Sketch the curve and label the rejection region o State the decision rules ▪ State Chi-square formula ▪ State expected frequency formula ▪ Calculate the test statistic using the table method. ▪ Draw a conclusion (state whether H0 is rejected or not and why you made this decision). ▪ Interpret the result
Hi, I would like to know how to solve this sample question step by step with explanation as I am new to this topic.
(Idk why the sysrem flags this as a graded question or whatever but its not and I need help understanding. Please do not reject)
A study was conducted to determine whether big-city and small-town dwellers differed in their helpfulness to strangers. In this study, the investigators
strangers admitted into their home by big city dwellers : 60
strangers not admitted into their home by big city dwellers : 90
strangers admitted into their home by small town dwellers : 70
strangers not admitted into their home by small town dwellers : 30
Do big-city dwellers differ in their helpfulness to strangers? Use alpha = 0.05.
For this question be sure to do the following:
▪ State the statistical hypotheses (using the appropriate notation)
▪ Set the decision rules, which will include:
o State alpha
o Compute the degrees of freedom
o Providing the critical value for the test statistic o Sketch the curve and label the rejection region o State the decision rules
▪ State Chi-square formula
▪ State expected frequency formula
▪ Calculate the test statistic using the table method.
▪ Draw a conclusion (state whether H0 is rejected or not and why you made this
decision).
▪ Interpret the result
Step by step
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