Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

1. You saw 3 inferential tests last week Large sample Z small sample t, Think of a measurable problem you know of and tell whether you would use a Z test or a t test Tell me why ( more than just being driven by sample size ) and describe the hoped for result

2. Paired sample means tests are used when there is no historical data. Give me one ex and some rationale where you would see a reason for wanting to use a paired sample means test

3. A typical recommendation from an inferential test is to either not Reject the null implying no statistical difference in the means or to reject implying there is a statistical difference in the means. Usually the person giving the recommendation will include the confidence level ( aka the Alpha ) and will usually say "with a small chance of statistical error" What is this statistical error and what do you think about this thing called error?

4. You just finished getting your data, made sure there were no fliers and the data was correct You created a mean and standard deviation and ran your Z test at the 0.05 alpha Your decision rule is 1.645 and your Z test statistic ( step 3 ) is 1.647 What do you do ( reject or not ) and how do you feel about your decision

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M943730

Have any Question? 


Related Questions in Statistics and Probability

Question to qualify for security officers training recruits

Question: To qualify for security officers training, recruits are tested for stress tolerance. The scores are normally distributed with a mean of 62 and a standard deviation of 8. If only the top 15% of recruits are sele ...

Consider the game in strategic form shown in table 1a find

Consider the game in strategic form shown in Table 1. a. Find the correlated equilibrium that maximizes the expected sum of the two players' payoffs. b. Find the correlated equilibrium that minimizes the expected sum of ...

In a random sample of 10 reduced fat chocolate chip cookies

In a random sample of 10 reduced fat chocolate chip cookies, the sample mean for the number of chocolate chips was 17.6.  Regular chocolate chip cookies have a mean number of 20 chocolate chips.  The population standard ...

Bag i contains 3 white objects and 4 black objects and bag

Bag I contains 3 white objects and 4 black objects, and Bag II contains 2 white and 6 black objects. a) You pick an object randomly from Bag I and place it into Bag II. Next you pick an object randomly from Bag II. What ...

A war of attrition game two small grocery stores on the

A war of attrition game.) Two small grocery stores on the same block are feeling the effects of a large supermarket that was recently constructed a half-mile away. As long as both remain in business, each will lose $1000 ...

Assignment- sampling distributions and estimation

Assignment- Sampling Distributions and Estimation; Hypothesis Testing 1. In a simple random sample from a population of several hundred that's approximately normally distributed, the following data values were collected. ...

1 why does quasi-experimentation sometimes require the use

1. Why does quasi-experimentation sometimes require the use of "patched-up" designs? 2. Discuss the philosophy of critical multiplism as it applies to quasi-experimental research.

Peter has two envelopes he puts 10k euros in one and 10k1

Peter has two envelopes. He puts 10k euros in one and 10 k+1 euros in the other, where k is the outcome of the toss of a fair die. Peter gives one of the envelopes to Mark and one to Luke (neither Mark nor Luke knows the ...

A social welfare function f is called monotonic if for

A social welfare function F is called monotonic if for every alternative a ∈ A, and every pair of strict preference profiles P N and QN satisfying a>p 1 c ⇒ a>Q 1 c, ∀c≠a, ∀i ∈ N, the following is also satisfied: a>F(P)c ...

An alternative to the experiment in q3 to investigate

An alternative to the experiment in Q.3 to investigate whether loud music tends to increase the time it takes mice to complete a maze would involve randomly assigning say, 50 mice to two groups. The 25 mice in Group A (c ...

  • 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