Question: The z-statistic is calculated with the formula z = (sample statistic - null parameter)/(standard error). Why do we subtract the null parameter from the sample

The z-statistic is calculated with the formula z = (sample statistic - null parameter)/(standard error). Why do we subtract the null parameter from the sample statistic? In other words, what does subtracting achieve for us? Why do we then divide that value by the standard error?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

1. [-/4 Points] DETAILS UHSTAT6 12.2.049.S. MY NOTES ASK YO Find the p-value for each of these situations, taking into account whether the test is one-sided or two-sided. (Round your answers to four...

1. An independent-measures study uses two samples, each with n = 13, to compare two treatment conditions. What is the df value for the t statistic for this study? (1 point) 2. A researcher reports...

Student: Brandy Freytag Date: 7/12/16 Instructor: Doug LeVeque, Beverly Wood Assignment: MSL Chapter 8 HW Course: MATH_211_1841_May_2016(LeVeque) 1. With a two-tailed test, if the test statistic...

1. This is an OPEN BOOK/OPEN NOTE exam CHAPTER 9 Which of the following is a fundamental difference between the t statistic and a z-score? (Points : 2) The t statistic uses the sample mean in place...

18. You choose an alpha level of .01 and then analyze your data. a. What is the probability that you will make a Type I error given that the null hypothesis is true? b. What is the probability that...

Q1. As the sample size increases, the standard error of the mean increases. a. true b. false Q2. The Central Limit Theorem is important in statistics because a. for a largen, it says the population...

AP Statistics Name: Notation Quiz Date: Pd: 1_ mgr A. Null hypothesis 2_ I} B. Alternative hypothesis g? C. Population parameter 3- Z *1 l? D. Probability of obtaining a sample value at least as...

1. The president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean SAT score is lower than previous years. He...

Hello, please, I was given this project, and seeking help from a tutor is totally allowed. Can you please go through it to see if there is any help you can give? I have recorded tallies of responses...

Hello, please, I was given this project and seeking help from a tutor is totally allowed. Can you please go though it to see if there any help you can give. I have recorded tallies of responses in...

Estimate the ratio of populations of the Ms states of a system with S = I in 15.0 T at 298 K.

What are the purposes of tests of controls for the ICFR and financial statement components of an integrated audit?

14 Here are three formula cards. b= 18 a c-bx(2-1)-3(c-11) Work out the value of d when Explain the method you used. 3

Question 2 Sundar Pichai has been named as the new chief executive of Alphabet, the parent company of Google. Sundar is known to have handled the toughest projects at Google. He maintains a low...

Pollution

The fear of making a fool of oneself

4. Develop circular models, with positive and negative feedback loops, for the following situations: (a) In a poor third-world country, the population increase has been very large in the last ten...