Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Objective type problems based on interval estimate for the difference between two samples means.

1. While developing an interval estimate for the difference between two sample means with sample sizes of n1 and n2,

a. n1 must be equal to n2

b. n1 must be larger than n2

c. n1 and n2 can be of different sizes,

d. n1 must be smaller than n2

2. Independent modest random samples are taken to test the difference between the means of two populations whose standard deviations are not known. The sample sizes are n1 = 25 and n2 = 35 and the correct distribution to use is the

a. t distribution with 58 degrees of freedom

b. Poisson distribution

c. t distribution with 60 degrees of freedom

d. t distribution with 59 degrees of freedom

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M923345

Have any Question? 


Related Questions in Statistics and Probability

A multiple-choice test consists of 7 questions each

A multiple-choice test consists of 7 questions. Each question has answer choices of a, b, c, and d, and only one of the choices is correct. If a student randomly guesses on each question, what is the probability that she ...

In your words demonstrate your understanding on the

In your words, demonstrate your understanding on the following concepts: a) Survival analysis b) Life table c) Kaplan-Meier curve d) Logrank test e) Negative exponential survival distribution f) Cox proportional hazards ...

The price of a railroad car purchased by rio corporation

The price of a railroad car purchased by Rio Corporation was $78,600. Using the MACRS method, calculate the annual depreciation for year 3. (Round all dollar amounts to the nearest cent) $34,371.78 $19,249.14 $13,747.14 ...

A machine used to fill gallon-sized paint cans is regulated

A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 138 ounces and a standard deviation of 0.40 ounce. You randomly select 45 cans and carefully measure the con ...

1 a producer specifies that the mean lifetime of a certain

1. A producer specifies that the mean lifetime of a certain type of battery is at least 240 hours. A sample of 18 such batteries yielded the following data. 237             242             232 242             248         ...

What is the difference between inter participant and intra

What is the difference between inter participant and intra participant variance? Which of these types of variance is more closely related to error variance in group experimental designs? Which type is of primary interest ...

Question please show your work by making a table fornbspd

Question: (Please show your work by making a table for  d and d-square) A motivational program was designed to increase the number of hours each student who took it studied per week. Eight randomly selected students were ...

Tell whether each of the following relationships reflects a

Tell whether each of the following relationships reflects a positive or a negative correlation: a. the amount of stress in people's lives and the number of colds they get in the winter b. the amount of time that people s ...

Although quasi-experimental designs are widely accepted in

Although quasi-experimental designs are widely accepted in behavioral science, some researchers are troubled by the fact that the evidence provided by quasiexperiments is seldom as conclusive as that provided by true exp ...

1 why do researchers use inferential statistics2

1. Why do researchers use inferential statistics? 2. Distinguish between the null hypothesis and the experimental hypothesis. 3. When analyzing data, why do researchers test the null hypothesis rather than the experiment ...

  • 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