Respuesta :
In this one, We reject the null hypothesis and accept the alternative hypothesis. The z score of -0.07 is in the rejection area
What is the process of doing the hypothesis test?
In math, the ANOVA output is given in tabular format with headers like source, that consists of error sources and these error sources can be unexplained or explained ones. Then the evaluation of these helps to account for the F-statistic is accounted for two terms, known as degrees of freedom which can found against the factor and the error value.
Here we have given that senior accounting major at Midsouth State University has job offers from four CPA firms. To explore the offers further, she asked a sample of recent trainees how many months each worked for the firm before receiving a raise in salary.
And we need to find the difference in the mean number of months before a raise was granted among the four CPA firms
While we looking into given question, we have the sample data as,
=> 3, 28.17, 9.39, 5.37, 0.133, 15, 26.26, 1.75, 18, 54.43
By using the sample data, we have identified the value of the following
Standard Deviation, σ: 15.860418305013
Count, N: 10
Sum, Σx: 161.503
Mean, μ: 16.1503
Variance, σ2: 251.55286881
Now, the hypothesis testing result is written as,
The critical value (cutoff point) is 1.833. In left-tail hypothesis testing, any z score less than the critical value will be rejected. Since -0.07 is less than 1.833, we reject the null hypothesis. We accept the alternative hypothesis.
To know more about Hypothesis here.
https://brainly.com/question/29576929
#SPJ4
