Question: 10) In the GRE test example (Exercise 9), what if it was believed that the only possible alternative to the null hypothesis is one in

10) In the GRE test example (Exercise 9), what if it was believed that the only possible alternative to the null hypothesis is one in which the students' GRE scores increase (i.e., they cannot decrease). a) State the null and alternative hypotheses (Ho and H1). Ho has an = sign. H1 has a > sign. b) Make a decision about the null hypothesis. (1) Set alpha (a), identify the critical values, and state a decision rule. Why is the decision rule different in this situation? (2) Calculate a statistic: z-test for one mean. Is it a different value in this situation? Why or why not? z = (xmean - H) / (o / sqrt n) (3) Make a decision whether to reject the null hypothesis. (4) Determine the level of significance. c) Draw a conclusion from the analysis. d) What are the implications of this analysis for the GRE class

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!

10. /In the GRE test example (Exercise 9), what if it was believed that the only possible alternative to the null hypothesis is one in which the students' GRE scores increase (i.e., they cannot...

In the GRE test example (Exercise 9), what if it was believed that the only possible alternative to the null hypothesis is one in which the students GRE scores increase (i.e., they cannot decrease)?...

In the GRE test example (Exercise 9), what if it was believed that only the possible alternative to the null hypothesis is one in which the students" GRE scores increase

WEEK 6 - HOMEWORK 6: LANE CHAPTERS, 11, 12, AND 13; ILLOWSKY CHAPTER 9, 10 INTRODUCTION USING THE NORMAL, z-TABLES AND THE t-TABLES. Here are graphs showing the Normal (z-values) and the...

hey i need help with this 3- [3112 Points] DETAILS PREVIOUS ANSWERS UHSTATS 131.037. MY NOTES MK YOUR TEACHER PRACTICE ANOTHER Some data included information on height (height) and mother's height...

the following problems showing your work and explaining (or analyzing) your results. 1. Explain Type I and Type II errors. Use an example if needed. 2. Explain a one-tailed and two-tailed test. Use...

1:62 Done & myopenmath.com o ) ~ 1hr54mins X Crying Time of Infants Given Shots Using Mev e cioas o || =k 61 | 62 10 | 57 e lie 24 | 18 State the null and alternative hypotheses. Hoipy 22 1 Hotby 22...

What is the correct answer to the following questions: 1. The distribution of personal income for U.S. citizens is positively skewed. If the median annual income is $44,000, this implies that the...

Problem 1 (10 points) Shown below is a histogram representing the income of the employees of a local fortune 500 company. Variable N Mean Median TrMean StDev Annual S 1000 101165 68734 88756 104296...

As a researcher you want to study if counseling self-efficacy is affected by age of professional counselors. It is expected that counseling self-efficacy will increase with age of professional...

The find method to locate an element in a binary search tree can be implemented a). Using Disjoint sets b). Recursively c). Iteratively d). Both recursively and alliteratively

A company expects their revenues to decrease by $5,773 per year over the next 10 years, starting from year 2. What is the cash flow, right now, if the company's MARR is 3% ? In other words, what is...

Reread the Management Focus on the rise and fall of the matrix structure at Dow Chemical, then answer the following questions: a. Why did Dow first adopt a matrix structure? What were the problems...

A projective technique in which respondents are presented with a list of words, one at a time is called word association Sentence completion story completion role playing thought iting

In the United States, there is an English-only movement, also known as the Official English movement. Members of this organization advocate that only the English language should be used in official...

Go back to Chapter 1 and review your score on the GENE (Generalized Ethnocentrism) Scale. Are you ethnocentric? Why or why not?

You are having a party at your dorm or apartment tonight. What groups of people will you not invite because of the stereotypes you hold regarding those groups? Be honest.