Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Consider a random sample of size 20 from a normal distribution, Xi ~ N(mu, s^2), and suppose that x(bar) = 11 and s^2 = 16.

a) Assuming it is known that s^2 = 4, test Ho: mu > or equal to 12 versus Ha: mu < 12 at the significance level alpha = .01.

b) What is B = P[TII] if in fact mu = 10.5?

c) What sample size is needed for the power of the test to be .9 for the alternative value mu = 10.5?

d) Test the hypothesis of a) assuming s^2 unknown.

e) Test Ho: s^2 < or equal to 9 against Ha: s^2 > 9 with significance level alpha = .01.

f) What sample size is needed for the test of e) to be 90% certain of rejecting Ho when in fact s^2 = 18? What is B = P[TII] in this case?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M944830

Have any Question? 


Related Questions in Statistics and Probability

Consider a decision-maker whose subjective probability

Consider a decision-maker whose subjective probability distribution over the set of possible states Ω is p = (p(s)) We ask him to tell us his subjective probability distribution, but he can lie and report any distributio ...

Each of the following sentences violates a basic rule of

Each of the following sentences violates a basic rule of report writing. Indicate the relevant difficulty in each case. a. "The scale was coded to assess optimism, or lack thereof, in the participants." b. "Seven of the ...

Assuming data come from a random sample under which of the

Assuming data come from a random sample, under which of the following conditions should we notcalculate a confidence interval for a population mean? A. Population is normally distributed and sample size is 50 individuals ...

The centers for disease control and prevention released a

The Centers for Disease Control and Prevention released a report in 1998 that attributed part of the increase in youth smoking in the 1980s to the use of the cartoon character, Joe Camel, in cigarette advertising. Using ...

A researcher found a significant relationship between a

A researcher found a significant relationship between a student's IQ, x1, grade point average, x2, and the score, y, on the verbal section of the SAT test. The relationship can be represented by the multiple regression e ...

Two pollsters are conducting surveys to estimate the

Two pollsters are conducting surveys to estimate the proportion of Clarkston, Michigan citizens who support a bond issue to build a sports stadium. Both pollsters use the same methods; however, their sample sizes differ. ...

Researchers use hierarchical regression cross-lagged panel

Researchers use hierarchical regression, cross-lagged panel designs, and structural equations modeling to partly resolve the problems associated with inferring causality from correlation. a. Describe how each of these an ...

You plan to start saving for your sons college education he

You plan to start saving for your son's college education. He will begin college when he turns eighteen and will need $4,000 then and in each of the following three years. You will make a deposit at the end of this year ...

Given a stable matching of n men and n womena is it

Given a stable matching of n men and n women, (a) Is it possible to find three pairs such that if the matching among them is changed, each man will be matched to a woman whom he prefers, and each woman will be matched to ...

1 what three rules govern the construction of a grouped

1. What three rules govern the construction of a grouped frequency distribution? 2. What is the difference between a histogram and a bar graph? 3. Distinguish among the median, mode, and mean.

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen