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Conducting a z-Test

 

ALL WORK MUST BE COMPLETED ON TIME AND MUST BE ALL ORIGINAL AS IT GOES THROUGH A TURNITIN PROGRAM ALSO  ALL QUESTIONS MUST BE ANSWERED IN FULL DETAIL  AND ALL PAPERS MUST BE OF QUALITY OR IT WILL NEED TO BE REDONE AND OR REFUNDED

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Conducting a z-Test

A researcher predicts that watching a film on institutionalization will change students’ attitudes about chronically mentally ill patients. The researcher randomly selects a class of 36 students, shows them the film, and gives them a questionnaire about their attitudes. The mean score on the questionnaire for these 36 students is 70. The score for people in general on this questionnaire is 75, with a standard deviation of 12. Using the five steps of hypothesis testing and the 5% significance level (i.e. alpha = .05), does showing the film change students’ attitudes towards the chronically mentally ill?What does it mean to set alpha at .05?What is your null hypothesis? Alternate hypothesis?Is this a one-tailed or two-tailed hypothesis?What is the critical z?Calculate the obtained z. Do you reject or fail to reject the null hypothesis?State in words what you have found.

By Monday, June 6, 2016,

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