Wednesday, May 6, 2020

Different Attitudes

Question: Examine the different attitudes towards sex offenders between the psychology and non psychology students. and explain the descriptive statistics and inferential statistics. Answer: Descriptive and Inferential statistics We have to find the descriptive statistics for the different variables under study. Also, we have to use the inferential statistics or two way analysis of variance for checking the significant difference between the different attitudes towards sex offenders between psychology and non psychology students. In the descriptive statistics, we have to find out the frequency distributions for the different variables regarding psychology and non psychology students. In the inferential statistics, we have to see the two way analysis of variance for testing the significant difference in the given levels of the variables under study. First of all, we have to see the descriptive statistics for the given variables. The frequency distribution for the variables is given as below: Frequency Distribution In this topic, we have to see the frequency distributions for the different variables under study. For the given data, as per gender distribution, there are 22 male and 32 female observed in the data. The percentage of the male is given as 40.7% while the percentage of the female is given as 59.3%. For the distribution of the ethnicity, there are 16 white persons, 12 are black British, 9 are Asian British, 2 are mixed while 15 are African. About 29 persons are of age range 18-24, 15 persons are of 25-34, seven persons are of 35-44, two persons are of 45-54 and one person are of age more than 55. From the given data, it is observed that about 22 persons see the BBC news, seven persons see the ITV news, seven persons see the channel 4, and two persons see the channel 5 news while nine persons see the SKY news. Also, it is observed that 35 persons see the fictional crime dramas while 19 persons do not see the fictional crime dramas. About 29 persons see the crime channel or documentarie s and 25 persons do not see the prime channel or documentaries. It is observed that about 14 persons read the Guardian newspaper, 15 persons reads the newspaper SUN, 13 reads The daily mail, 6 reads Independent, three reads daily telegraph while three reads the mirror express. It is observed that about 38 persons use the Facebook while 11 persons use the twitter and 5 persons use the instagram. Two Way ANOVA Now, we have to see the two way ANOVA which is given as below: Here, we have to check the hypothesis whether there is any significant difference exists between the different levels of the variables such as male and female sex offenders due to psychology and non-psychology students. The null and alternative hypothesis is given as below: Null hypothesis: H0: There is no any significant difference exists between the different levels of the variables such male and female sex offenders due to psychology students and non psychology students. The alternative hypothesis is given as below: Alternative hypothesis: Ha: There is a significant difference exists between the different levels of the variables such as male and female sex offenders due to psychology and non-psychology students. For this two way analysis of variance, it is necessary to establish the level of significance or alpha value and we assume the level of significance or alpha value as 0.05 or 5% We have to check this claim or hypothesis by using the two way analysis of variance or two way ANOVA test. The two way analysis of variance or ANOVA test for checking this hypothesis is summarised as below: Now, we have to take the decision based on the p-values of the given factors or variables under study. We know the decision rule which is given as below: We do not reject the null hypothesis if the p-value is greater than the given level of significance or alpha value and we reject the null hypothesis if the p-value is less than the given level of significance or alpha value. Here, we are given a level of significance or alpha value = 0.05 or 5% level of significance. For this two way ANOVA we get the most of the p-values greater than alpha value 0.05, so we do not reject that there is no any significant difference between the given levels and replications. Therefore, we conclude that there is no any significant difference exists between the different levels of the variables such male and female sex offenders due to psychology students and non psychology students. References: Leonard J. Savage, The Foundations of Statistics, 2nd ed., Dover Publications, Inc. New York, 1972. Robert V. Hogg, Allen T. Craig, Joseph W. McKean, An Introduction to Mathematical Statistics, 6th ed., Prentice Hall, 2004. George Casella, Roger L. Berger, Statistical Inference, 2nd ed., Duxbury Press, 2001. David R. Cox, D. V. Hinkley, Theoretical Statistics, Chapman Hall/CRC, 1979. Peter J. Bickel, Kjell A. Doksum, Mathematical Statistics, Volume 1, Basic Ideas and Selected Topics, 2rd ed. Prentice Hall, 2001.

No comments:

Post a Comment

Note: Only a member of this blog may post a comment.