Question

# QUESTION 27 Using the Standard Normal Table. What is the probability a z-score is between -1.11...

QUESTION 27

1. Using the Standard Normal Table. What is the probability a z-score is between -1.11 and 0.91?

In other words, what is P( -1.11 < z < 0.91)?

 A. 0.6851 B. 0.5186 C. 0.9521 D. 0.0479

QUESTION 28

2. Consider this question: For a certain set of data, what percentage of individuals would have a z-score less than 1.45?

(Hint: this is asking what percentage of the normal curve would fall less than that z-score.)

(Hint: think about where this z-score is located in relation to the mean. Think about the direction being asked about - (less than or greater than) that value).

Which choice below is true?

 A. The answer will be 100%. B. The answer will be 145%. C. The answer will be less than 50%. D. The answer will be more than 50%

QUESTION 29

3. Consider this question: For a certain set of data, what percentage of individuals would have a z-score less than -0.66?

(Hint: this is asking what percentage of the normal curve would fall less than that z-score.)

(Hint: think about where this z-score is located in relation to the mean. Think about the direction being asked about - (less than or greater than) that value).

Which choice below is true?

 A. The answer will be 66%. B. The answer will be 100%. C. The answer will be less than 50%. D. The answer will be more than 50%

27. 0.6851

28. The answer will be more than 50%

29. The answer will be less than 50%

#### Earn Coins

Coins can be redeemed for fabulous gifts.

Similar Homework Help Questions
• ### Using the Standard Normal Table. What is the probability a z-score is greater than 0.44? In...

Using the Standard Normal Table. What is the probability a z-score is greater than 0.44? In other words, what is P(z > 0.44)? A. 0.6554 B. 0.3446 C. 0.3300 D. 0.6700

• ### Question 10 6 pts In a normal distribution, what is the approximate probability (as a percentage)...

Question 10 6 pts In a normal distribution, what is the approximate probability (as a percentage) of randomly selecting a value with a z-score less than z = +1.65? In other words, what percentage of scores fall below az score of 2.5% 95.0% 5.0% 97.5%

• ### - What proportion of a normal distribution is located between each of the following Z-score boundaries?...

What proportion of a normal distribution is located between each of the following Z-score boundaries? a. z= -0.50 and z= +0.50 b. z=-0.90 and z= +0.90 c. z=-1.50 and z= 1.50 For a normal distribution with a mean of μ = 80 and a standard deviation of σ= 20, find the proportion of the population corresponding to each of the following. a. Scores greater than 85. b. Scores less than 100. c. Scores between 70 and 90. IQ test scores are standardized to produce a normal distribution with...

• ### 4. Probability computations using the standard normal distribution Assume that x, the starting salary offer for...

4. Probability computations using the standard normal distribution Assume that x, the starting salary offer for education majors, is normally distributed with a mean of \$46,292 and a standard deviation of \$4,320 Use the following Distributions tool to help you answer the questions. (Note: To begin, click on the button in the lower left hand corner of the tool that displays the distribution and a single orange line.) Standard Normal Distribution Mean 0.0 Standard Deviation-1.0 -2 .3 The probability that...

• ### Find the value of z-score such that 30.0% of all observations from a standard normal distribution...

Find the value of z-score such that 30.0% of all observations from a standard normal distribution are less than that z. (Round your values to the second decimal place) (Hint: use cumulative standard normal distribution z-table) O z= -1.05 O z = 1.64 O z = 1.05 O Not enough information to answer the question O z = 0.52 O z = -1.64 O None of the given numerical values is correct O z = -0.52

• ### given that z is a standard normal random variable what is the probability that z ≥...

given that z is a standard normal random variable what is the probability that z ≥ -2.12? a. 0.966 b. 0.017 c.4830 0.9830 From a population of 200 elements, a sample of 49 elements is selected. It is determined that the sample mean is 56 and the sample standard deviation is 14. The standard error of the mean is a. 3 b. 2 c. greater than 2 d. less than 2

• ### uwpks.instructure.com Question 9 4 pts What proportion of a normal distribution is located above z =...

uwpks.instructure.com Question 9 4 pts What proportion of a normal distribution is located above z = 1.50? 0.9332 0.0668 0.4332 0.1336 Question 10 4 pts A normal distribution has a mean of u = 100 with = 20. If one score is randomly selected from this distribution, what is the probability that the score will be less than X - 84? 0.7881 0.5762 0.2881 0.2119

• ### This discussion introduces you to normal probability via the calculated z-score. A z-score converts a non-standard...

This discussion introduces you to normal probability via the calculated z-score. A z-score converts a non-standard normal distribution into a standard normal distribution; a standard normal distribution has a mean of zero and standard deviation of one. This discussion introduces you to normal probability via the calculated z-score. A z-score converts a non- standard normal distribution into a standard normal distribution; a standard normal distribution has a mean of zero and standard deviation of one. Additional z-score properties and details...

• ### PART A: APPLYING THE NORMAL DISTRIBUTION P( z < -1.42) P( z > -2.17) P(z >...

PART A: APPLYING THE NORMAL DISTRIBUTION P( z < -1.42) P( z > -2.17) P(z > 2.35) P(-2.33 < z < 1.84) 2010 MCAT exam scores are normally distributed with a mean score of 25 with a standard deviation of 6.4 What proportion of students had an MCAT score over 30? What proportion of students had scores less than 40? For model year 2010 vehicles the combined city/hwy gas mileage is approximately normal with a mean of 20.3 mpg and...

• ### Please explain in steps, Thank You!! 7. What z-score value separates the highest 10% of the...

Please explain in steps, Thank You!! 7. What z-score value separates the highest 10% of the scores in a normal distribution from the lowest 90%? 8. Scores on the SAT form a normal distribution with a mean of μ-550 with σ 100. If the state college only accepts students who score in the top 65% on the SAT, what is the minimum score needed to be accepted? What does that z-score become if they change their criteria so that only...