Question

A) A group of respondents had mean of 92 and standard deviation of 16. What is...

A) A group of respondents had mean of 92 and standard deviation of 16.

What is the z-score to be in the bottom 5.05%?

B) what is the actual score needed to be in the bottom 5.05%?

(calculate to 2 decimal digits)

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

A group of respondents had mean of 92 and standard deviation of 16.

A) What is the z-score to be in the bottom 5.05%?

z=-1.64002

B) what is the actual score needed to be in the bottom 5.05%?

(calculate to 2 decimal digits)

X=65.7596

Hence, actual score needed to be in the bottom 5.05% is 65.7596

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A) A survey says average spent for eating out is $120 pear week. Standard deviation is...
A) A survey says average spent for eating out is $120 pear week. Standard deviation is $42 What is the z-score to be in the top 10.03%? B) what is the actual score needed to be in the top 10.03%? (calculate to 2 decimal digits)
The mean number of calories eaten per meal for respondents is 580 with a standard deviation...
The mean number of calories eaten per meal for respondents is 580 with a standard deviation of 140. You have these given values: Number of Calories per meal; Proportion of area between mean; and Z score Proportion of area beyond Z score 400; .21; .29 650; .09; .41 -Calculate the proportion of people who ate between 400 and 650 calories. -What is the proportion of people who ate more than 650 calories?
The mean is 16 and Standard Deviation is 4. Using a normal curve table, what is...
The mean is 16 and Standard Deviation is 4. Using a normal curve table, what is the lowest (or highest d) score on the test anxiety measure a person has to be in: a. Top 37% b. Top 9% c. Top 1% d. Bottom 1%
"For a normal distribution with a mean of 16 and standard deviation of 2, what's the...
"For a normal distribution with a mean of 16 and standard deviation of 2, what's the probability of getting a number greater than 20? " "Consider a normal distribution with a mean of 25 and standard deviation of 4. Approximately, what proportion of the area lies between values of 17 and 33. " a. 95% b. 68% c. 99% d. 50% Two-hundred students took a statistics class. Their professor creatively decided to give each of them their Z-score instead of...
Suppose the grade on a Math test is normally distributed with mean 78 and standard deviation...
Suppose the grade on a Math test is normally distributed with mean 78 and standard deviation 10. (a) Compute the z-scores (5 points) (a-1) If Bob got 70 on the test, what is his z-score? (a-2) If Jane got 90 on the test, what is her z-score? (b) Compute the actual grades (5 points) (b-1) Suppose David achieved a grade 1.8 standard deviation above the mean (? = 1.8), what was his actual grade? (b-2) Suppose Lily achieved a grade...
Suppose the grade on a Math test is normally distributed with mean 78 and standard deviation...
Suppose the grade on a Math test is normally distributed with mean 78 and standard deviation 10. (a) Compute the z-scores (5 points) (a-1) If Bob got 70 on the test, what is his z-score? (a-2) If Jane got 90 on the test, what is her z-score? (b) Compute the actual grades (5 points) (b-1) Suppose David achieved a grade 1.8 standard deviation above the mean (? = 1.8), what was his actual grade? (b-2) Suppose Lily achieved a grade...
Students taking a standizedvIQ test had a mean score of 100 with a standard deviation of...
Students taking a standizedvIQ test had a mean score of 100 with a standard deviation of 15. Assume that the scores are normally distributed. a) Find the probaility that a student had a score less than 95. b) If 2000 students are randomly selected, how many would be expected to have an IQ score that is less than 90? c) What is the cut off score that would place a student in the bottom 10%? d) A random sample of...
A population is normally distributed with a mean of 30 and a standard deviation of 4....
A population is normally distributed with a mean of 30 and a standard deviation of 4. a. What is the mean of the sampling distribution (μM) for this population? b. If a sample of n = 16 participants is selected from this population, what is the standard error of the mean (σM)? c. Let’s say that a sample mean is 32. 1) What is the z-score for a sample mean of 32? (calculate this) 2) What is the probability of...
1. "The mean of a sample of 10 scores is 100, and the standard deviation is...
1. "The mean of a sample of 10 scores is 100, and the standard deviation is 5. For the following raw scores, compute the z score: 101 112 97 . For the following z scores, work backward to compute the corresponding raw score: 0.5 1.1 2.12 2. "If a student receives a z score of 0, how well did that student do in comparison with other students in the group?" 3. "You are in charge of a project that is...
Let X have a normal distribution with a mean of 23 and a standard deviation of...
Let X have a normal distribution with a mean of 23 and a standard deviation of 5. Find P(X < 9 or X > 21) in the following steps (a) What region of the normal distribution are you looking to find the area of? (to the left of a zscore, to the right of a z-score, between two z-scores, or to the left of one z-score and to the right of another z-score) (b) Calculate the z-score(s) needed to find...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT