A researcher selects a sample of 6 professors 6 students, Ask an Expert

Statistics

A researcher selects a sample of 6 professors, 6 students, and 6 administrators at a local school and has them rate the effectiveness of an innovative new teaching style. In this example, is it possible that the weighted mean ratings will equal the arithmetic mean for the entire sample of 18 participants?

A. No, the weighted mean is never exactly equal to the arithmetic mean.

B. Yes, because there are an even number of participants in each sample.

C. Yes, because the sample sizes are equal in this example.

D. It is not possible to know this without knowing the mean for each sample.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91013811

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

A foreign trader at the banks tx desk calls to inform you

A Foreign trader at the bank's TX desk calls to inform you that the company TD Bank is quoting $1.20/€1, and Bank of America is offering $1.40/£1. The trader also noticed thatCredit Z is also making the market in pound ...

Arvo corporation is trying to choose between three

Arvo Corporation is trying to choose between three alternative investments. The three securities that the company is considering are as follows: Tax-free municipal bonds with a return of 8.8%. Wooli Corporation bonds wit ...

The probability that someone made a purchase at a store is

The probability that someone made a purchase at a store is 0.36. You randomly select 15 people who went to the store. The random variable x represents the number of people who made a purchase. a. Find the probability tha ...

Please help answer the following question1 some research

Please help answer the following question 1) Some research suggests that police officers are more likely to make an arrest in the presence of bystanders. If mentally disordered suspects attract more attention from bystan ...

A professor records the following final exam scores 68 6 m

A professor records the following final exam scores: 68 6 (M SD). Students scoring in the top 18% get an A. What is the cutoff score for the top 18% in this example?

Why is sustainability in the sport industry linked to the

Why is sustainability in the sport industry linked to the green movement?

1 this table summarizes the results from

1) This table summarizes the results from along+termrandomized clinicaltrial to determine whether aspirin reduces the risk of heart attack. Researchers randomly assigned a large sample of healthy male physicians (22,07 ...

The probability of someone ordering the daily special is 52

The probability of someone ordering the daily special is 52%. If the restaurant expected 96 people for lunch, how many would you expect to order the daily special?

What is the sample size for studies with moe of -35 and -28

What is the sample size for studies with MOE of +/-3.5% and +/-2.8%, with a confidence level of 95%, sample statistics of 50. Suppose the category population was 7500 (less than 10,000)? Remember the FPC. What would be t ...

What level of measurement is required for qualitative

What level of measurement is required for qualitative variables? What level of measurement is required for quantitative variables? Can both types be used to describe both samples and populations? Why or why not?

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

Recent Questions

Ask Statistics and Probability Expert