Determining hypothesis testing problem

Assignment Help Basic Statistics

Reference no: EM13107903

A random sample of 51 observations was selected from a normally distributed population. The sample mean was x = 79, and the sample variance was s^2 = 29.0. Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance? Use the p-value method.

· State the null and alternate hypotheses

· Determine which test statistic applies, and calculate it

· Determine the corresponding probability, and compare to

· State your decision: Should the null hypothesis be rejected

Reference no: EM13107903

Questions Cloud

How accurate is eyewitness testimony : How accurate is "eyewitness" testimony? Do you think that it might be trusted too much? (not from google)

Determine the process capability index : Determine the Process Capability Index of the three processes given below and determine whether the processes are capable or not.

Determine the equilibrium price and quantity in market : The widget market is competitive and includes no transaction costs. Five suppliers are willing to sell at the following prices: $30, $29, $20, $16, and $12.

Discuss the primary purposes of holding inventory : The key points in Chapter 12 tell us that good inventory management is important for successful organizations. The key issues are when to order and how much to order.

Determining hypothesis testing problem : Does the sample show sufficient reason to conclude that the population standard deviation is not equal to 8 at the 0.05 level of significance?

Challenges radical republicans face in reconstruction period : What challenges did Radical Republicans face during Reconstruction period? The Radical Republicans fought for political supremacy. They had 2 major goals: Break power of wealthy planters who had long ruled South.

Creating network using the aon : Construct a network using the AON (Activity on Network method) like we did in class. Show how you calculate the path in weeks for each of the three paths.

Challenges for project manager : What challenges may arise if a U.S. project manager moves to a foreign country to manage a project for 5 years? Discuss specific strategies that the U.S. project manager could use to be successful in a situation such as this.

Chi square test-heart disease-personality : A study suggested that personality type is related to heart disease. Specifically, type A people,who are competitive, driven, pressured, and impatient, are more prone to heart disease.

User Account

All Pages