Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Objective type problem on Sampling Distribution.

1. The Central Limit Theorem is significant in statistics because

1) For a large n it says the population is approximately normal.

2) For any population it says the sampling distribution of the sample mean is approximately normal regardless of the sample size.

3) For a large n it says the sampling distribution of the sample mean is approximately normal, regardless of the shape of the population.

4) For any sized sample it utters the sampling distribution of the sample mean is approximately normal.

 2. Which of the subsequent statements about the sampling distribution of the sample mean is incorrect?

1) The sampling distribution of the sample mean is approximately normal whenever the sample size is sufficiently large (n ≥ 30).

2) The sampling distribution of the sample mean is generated by repeatedly taking samples of size n and computing the sample means.

3) The mean of the sampling distribution of the sample mean is equal to μ.

4) The standard deviation of the sampling distribution of the sample mean is equal to σ.

3. Supposing a sample of n = 50 items is drawn from a population of manufactured products and the weight X and of each item is recorded. Previous experience has shown that the weight has a probability distribution with μ = 6 ounces and σ = 2.5 ounces. Which of the subsequent is true about the sampling distribution of the sample mean if a sample of size 15 is selected?

1) The nasty of the sampling distribution is 6 ounces.

2) The standard deviation of the sampling distribution is 2.5 ounces.

3) The shape of the sample distribution is approximately normal.

4) All of the above are correct.

4. The average score of entirely pro golfers for a particular course has a mean of 70 and a standard deviation of 3.0. Supposing 36 golfers played the course today. Find the probability which the average score of the 36 golfers exceeded 71. 

5. The distribution of the number of loaves of bread sold per day by a large bakery over the past 5 years has a mean of 7,750 and a standard deviation of 145 loaves. Supposing a random sample of n = 40 days has been selected. describe what is the approximate probability that the average number of loaves sold in the sampled days exceeds 7,895 loaves?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M921236

Have any Question? 


Related Questions in Statistics and Probability

Imagine you obtained a point biserial correlation of 35

Imagine you obtained a point biserial correlation of .35 between gender and punctuality, showing that men arrived later to class than did women. You think that this correlation might be due to the fact that more women th ...

In onenbsptownnbsp24nbspof all voters are democrats if two

In one town, 24% of all voters are Democrats. If two voters are randomly selected for a survey, find the probability that they are both Democrats. Round to the nearest thousandth if necessary.

While some countries tend to favor expansion of the

While some countries tend to favor expansion of the European Union, others generally oppose it. Entering a union agreement with other countries has both benefits and drawbacks for each member country. In what ways do you ...

Wat were the key political features of the roman republic

What were the key political features of the Roman Republic? How and why did this system of government collapse? Does our republic share any of the weaknesses of the Roman Republic?

1 what are order effects and how does counterbalancing help

1. What are order effects, and how does counterbalancing help us deal with them? 2. Distinguish between treatment, confound, and error variance. 3. Which is worse--confound variance or error variance? Why?

It is noted that research falls into four basic categories

It is noted that research falls into four basic categories, depending on whether the goal is to describe patterns of behavior, thought, or emotion (descriptive research); to examine the relationship among naturally occur ...

The potential revenues of all projects are in fact

The potential revenues of all projects are in fact uncertain. The company determines that the revenue for project 1 is following a uniform distribution ranging from $1,200,000 to $2,000,000. The revenue for project 2 is ...

Jullian was curious if regular excise really helps weight

Jullian was curious if regular excise really helps weight loss,she decided to perform a hypothesis test. A random sample of 5 Kansas State students was chosen. The students took a 30-minute exercise every day for 6 month ...

What are the key components of consideration that went into

What are the key components of consideration that went into forming the Texas Constitution?

1 under what conditions is the median a more meaningful

1. Under what conditions is the median a more meaningful measure of central tendency than the mean? 2. Why do researchers prefer the standard deviation as a measure of variability over the range?

  • 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