Question

Asked Oct 24, 2019

A group takes a Personality test of Extraversion and they all take the test. They find that the group has a mean score of 50 with a Standard Deviation of 10. Bill has a score of 32 wants to know how many standard deviations he is away from the mean. Calculate his z-score.

The answer is -1.79 (with margin: -1.81)

how do I calculate the Z-core?

Step 1

It is given that the mean and standard dev...

Tagged in

Q: A researcher claims that the incidence of a certain type of cancer is less than 5%. To test his clai...

A: In this context, a researcher claimed that the proportion of incidence of particular type of cancer ...

Q: The following data represent the number of games played in each series of an annual tournament from ...

A: From the given information:X(game played)4567Frequency18162020 a.Construct a discrete probability di...

Q: An effect size of .55 would be considered?

A: Effect size in research:In research, effect size is a quantitative measure of the magnitude of the e...

Q: Determine the area under the standard normal curve that lies between (a) Z= - 0.41 and Z=0.41, (b) Z...

A: (a).The area that lies between Z= -0.41 and Z= 0.41 is calculated as shown below:

Q: An automobile manufacturer finds that 1 in every 2000 automobiles produce has a particular manufactu...

A: Binomial distribution:The events that has exactly two possible outcomes (success or failure) follows...

Q: The probability distribution for the random variable x follows: x f(x) 20 0.20 25...

A: Given:The probability distribution table is:xf(x)200.20250.15300.25350.40 1.We know that area under ...

Q: Research done at the Harvard School of Public Health showed that regular soda drinkers may have a te...

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are sol...

Q: A recent poll indicated that about 83% of U.S. households had access to a high-speed Internet conn...

A: The expected number of households have access to a high-speed Internet connection is obtained belo...

Q: Identify the appropriate level of measurement represented in each of the following questionnaire ite...

A: Introduction:Scales of measurement:Nominal: A scale of measurement in which, the observations are ca...