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Nt1310 Unit 1 Assignment

Decent Essays

When looking at the numbers of our table we can notice that the students who copied answers off another student's exam have the highest proportion of 0.53. This is makes sense, because it is the old-fashioned way of cheating and is easy especially when someone borrows a term paper or homework from a friend.
The second biggest proportion includes the students who collaborated with other students on projects that were supposed to be completed individually. This is another easier way of cheating, because students “justify” their cheating by maybe thinking that they need to collaborate with other students as a way learning the subject matter better. And finally, the least approved method of cheating is copying work off the Internet, which is 0.43. …show more content…

A. 95% confidence intervals for the proportion of all students, the proportion of all male students, and the proportion of all female students who were involved in some type of cheating. To form a confidence interval on a population proportion, we generally use Z a/2. To get this value in Excel we will use NORMSINV(1-a/2) , where 1-a/2 is the area in tail (http://home.business.utah.edu).

Involved in Cheating X Proportion Lower Limit Upper Limit
Students Involved in Cheating 81 0.90 0.8380 0.9620
Males Involved in Cheating 40 0.44 0.3418 0.5471
Females Involved in Cheating 41 0.46 0.3527 0.5584

B. 95% confidence intervals for the proportion of all students, the proportion of all male students, and the proportion of all female students who were involved in copying off the Internet is provided in the following table.

Copied from Internet Lower Limit Upper …show more content…

Null hypothesis. The null hypothesis, denoted by H0, is usually the hypothesis that sample observations result purely from chance. In this case, according to null hypothesis there is no significant difference between business students at Rocky University who were involved in cheating and business students elsewhere.
Alternative hypothesis. The alternative hypothesis, denoted by H1 or Ha, is the hypothesis that sample observations are influenced by some non-random cause. Proportion of business students at Rocky University who were not involved in some type of cheating is less than the proportion of all business students elsewhere.
We will use Excel formula GETPIVOTDATA to extract data from our pivot table, and find out x̅ or p-hat, which is the sample proportion (Blackwood, 2014).
Proportion of all business students at Rocky University who were not involved in some type of cheating, are as follows: p1 = 0.1 (9/90).
Proportion of all business students at Rocky University elsewhere are as follows p2 = 0.9

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