chi-square, t-test and pearson correlation

timer Asked: Jan 19th, 2021

Question Description

I'm working on a statistics question and need guidance to help me understand better.

i need to show from step 1 untill the decision making. just a simple calculation

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Individual assignment Chi-square test of independence Name: ________________________ Student ID No: ___________________ Group: ________________________ A researcher intends to study the movie’s elements university students will consider before they watch a movie. A sample of 170 students was requested to choose their preferences between these three elements - character, plot, and conflict. Test at α=0.05 level of significance whether there is any significant difference in the movie elements’ preferences between male and female students. The data are as follows: elements gender character plot conflict fr male 13 40 17 70 female 35 25 40 100 fc 48 65 57 170 N Assignment 6 - One sample t-test A manager of a smartphone company wants to know if the new marketing strategy has any effect on phone sales. The average daily sales for last year were 72 units. After a month of the campaign, the average daily sales were recorded as below: 72 82 75 79 78 83 95 100 93 83 Test at a two-tail test whether there is any significant mean difference in the average daily sales before and after the campaign at ɑ = 0.05 level of significance. Compute the SS, mean, SM, and t. Pearson correlation Individual assignment Name: ________________________ ____________________________ Student’s ID no: Group: _________________ Previous studies suggest that employees who enroll in a public speaking training course exhibit higher levels of self-confidence and are more competent in speech delivery. Therefore, a human resource manager of a company intends to assess the relationship between a public speaking training course and speech competency among the company’s staff. The data collected were shown as below: Respondent Public speaking training score Speech competency 1 2 3 4 5 6 7 8 9 10 15 10 7 18 5 17 15 11 9 14 12 13 9 18 7 16 11 13 9 12 Test whether there is any significant relationship between Public speaking training and speech competency at 0.05 level of significance, a two-tail test. ...
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