Hypothesis Testing Case Study Assignment
Hypothesis testing is used in business to test assumptions and theories. These assumptions are tested against evidence provided by actual, observed data. A statistical hypothesis is a statement about the value of a population parameter that we are interested in. Hypothesis testing is a process followed to arrive at a decision between 2 competing, mutually exclusive, collective exhaustive statements about the parameter’s value.
Consider the following scenario: An industrial seller of grass seeds packages its product in 50-pound bags. A customer has recently filed a complained alleging that the bags are underfilled. A production manager randomly samples a batch and measures the following weights:
To determine whether the bags are indeed being underfilled by the machinery, the manager must conduct a test of mean with a significance level α = 0.05.
In a minimum of 175 words, respond to the following:
State appropriate null (Ho) and alternative (H1) hypotheses.
What is the critical value if we work with a significant level α = 0.05?
What is the decision rule?
Calculate the test statistic.
Are the bags indeed being underfilled?
Should machinery be recalibrated?
What information do we obtain from the null hypothesis? What information do we obtain from the alternate hypothesis?
What do we mean when we refer to the critical value? Explain your answer with regard to the decision rule.
How do you calculate the test statistics with Excel for either the z or t statistic?
Tired of getting an average grade in all your school assignments, projects, essays, and homework? Try us today for all your academic schoolwork needs. We are among the most trusted and recognized professional writing services in the market.
We provide unique, original and plagiarism-free high quality academic, homework, assignments and essay submissions for all our clients. At our company, we capitalize on producing A+ Grades for all our clients and also ensure that you have smooth academic progress in all your school term and semesters.
High-quality academic submissions, A 100% plagiarism-free submission, Meet even the most urgent deadlines, Provide our services to you at the most competitive rates in the market, Give you free revisions until you meet your desired grades and Provide you with 24/7 customer support service via calls or live chats.