Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Find the critical value and test statistic value follows normal distribution.

1. Using z-table (Table E), find the critical value (or values) for a a = .14 right-tailed test.

A) .1406

B) 1.08

C) 0.0557

D) 1.54

2. At a certain university, the average cost of books per student was $400 per student last semester. In a sample of 40 students this semester, their average cost was $430 with a standard deviation of $80. The Dean of Students believes that the costs are greater this semester. What is the test value for the hypothesis?

1) 15.00

2) 2.37

3) 0.38

4) 0.75

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922060

Have any Question? 


Related Questions in Statistics and Probability

1 the correlation between self-esteem and shyness is -50

1. The correlation between self-esteem and shyness is -.50. Interpret this correlation. 2. Which is larger-a correlation of +.45 or a correlation of -.60? Explain.

Probabilities of graduation and publicationprofessors have

Probabilities of Graduation and Publication Professors have hundreds of students in their classes each year. Some professors teach only upper division courses to students who are in their major course of study. Of this g ...

What tensions emerged in the southwest that threatened to

What tensions emerged in the Southwest that threatened to lead the United States into a war with Mexico? On what grounds did President James K. Polk ask Congress to declare war on Mexico?

Repeat given exercise using the following aumann model of

Repeat given Exercise, using the following Aumann model of incomplete information with beliefs: N = {I, II}, Y = {1, 2, 3, 4, 5}, F I = {{1, 2}, {3, 4}, {5}}, F II = {{1, 3, 5}, {2}, {4}} P(ω) = 1/5, ∀ ω ∈ Y. for A = {1, ...

Question at the first state bank the average savings

Question: At the first state bank the average savings account balance in 2004 was $1300 with a standard deviation of $80. A random sample of 45 savings account balances for 2005 yielded a mean of $1350. At the alpha=01 s ...

1 what are the advantages and disadvantages of using a

1. What are the advantages and disadvantages of using (a) figures, (b) tables, and (c) text to report the results of experiments in the research report? 2. Differentiate between random sampling and random assignment. Whi ...

When researchers set their alpha level at 05 they reject

When researchers set their alpha level at .05, they reject the null hypothesis (and conclude that the independent variable has an effect) only if there is less than a 5% chance that the differences among the means are du ...

A sample of office assistants across the san francisco-bay

A sample of office assistants across the San Francisco-Bay Area was created. You want to build a model that will allow you to best predict a starting salary of potential new hires.  It was suggested that the data should ...

An airline estimates that 92 of people booked on their

An airline estimates that 92% of people booked on their flights actually show up. If the airline books 76 people on a flight, find the propability that exactly 73 people will show up. for which the maximum number is 74, ...

1 why do researchers use factor analysis2 imagine that you

1. Why do researchers use factor analysis? 2. Imagine that you conducted a factor analysis on a set of variables that were uncorrelated with one another. How many factors would you expect to find? Why?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro