### Using Normal Distribution to Solve Problems#### Instructions:Use the normal distribution graph provided to the right to answer the following questions.**Questions:**(a) What percent of the scores are less than 19?(b) Out of 1500 randomly selected scores, about how many would be expected to be greater than 21?#### Solution Guide:(a) **Percent of Scores Less Than 19:**- Determine the percentage from the normal distribution.- The result will be rounded to two decimal places.(b) **Number of Scores Greater Than 21:**- Calculate the number based on the normal distribution and the provided number of scores.- The result will be rounded to the nearest whole number as needed.**Graph/Diagram Explanation:**The graph illustrates a normal distribution for standardized test composite scores. It shows:- A bell curve, which represents the distribution of scores.- The mean (average) score, denoted as \( \mu \), is 19.6.- The standard deviation, denoted as \( \sigma \), is 5.2.- Two specific scores, 19 and 21, are marked along the x-axis.The graph visualizes the relationship between the scores and their distribution around the mean.**Form Fields:**(a) The percent of scores that are less than 19 is ___%.(Round to two decimal places as needed.)(b) About ___ scores would be expected to be greater than 21.(Round to the nearest whole number as needed.)

The mean is 19.6 and the standard deviation is 5.2.

Use the normal distribution to the right to answer the questions. Standardized Test Composite Scores (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how many would be expected to be greater than 21? H = 19.6 O = 5.2 19 21 Score (a) The percent of scores that are less than 19 is %. (Round to two decimal places as needed.) (b) About scores would be expected to be greater than 21. (Round to the nearest whole number as needed.)

Use the normal distribution to the right to answer the questions. Standardized Test Composite Scores (a) What percent of the scores are less than 19? (b) Out of 1500 randomly selected scores, about how many would be expected to be greater than 21? H = 19.6 O = 5.2 19 21 Score (a) The percent of scores that are less than 19 is %. (Round to two decimal places as needed.) (b) About scores would be expected to be greater than 21. (Round to the nearest whole number as needed.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

An Excel assignment counts for 0-10 points. The scores in a class of 12 students are recorded as follows:1 5 5 6 7 7 8 8 8 9 10 10 What is the deviation of the score 10 from the mean in 13a (recall that this involves a subtraction of the mean from the particular score)? I think I got answer but want to check.
Suppose that insurance companies did a survey. They randomly surveyed 400 drivers and found that 310 claimed they always buckle up. We are interested in the population proportion of drivers who claim they always buckle up. Which distribution should you use for this problem? (Round your answer to four decimal places.)
One hundred teachers attended a seminar on mathematical problem solving. The attitudes of representative sample of 12 of the teachers were measured before and after the seminar. A positive number for change in attitude indicates that a teacher's attitude toward math became more positive. The twelve change scores are as follows. 4; 7; −1; 1; 0; 5; −2; 2; −1; 6; 5; −3 Part (a) What is the mean change score? (Round your answer to two decimal places.)
Save Suppose a random sample of n = 390 teenagers 13 to 17 years of age was asked if they use social media. Of those surveyed, 276 stated that they do use social media. Find the sample proportion of teenagers 13 to 17 years of age who use social media. The sample proportion is p= (Round to three decimal places as needed.)
A sample of n = 6 scores has a mean of M = 5. One person with a score of X= 12 is added to the distribution. What is the mean for the new set of scores? O M= 8
If the deviations six of values from their mean are 0 , -6, 7 , -2 , 5 , -4 then the variance equal Select one: a. 21 b. 26 c. 4.2 d. 5.2
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
2b please
The scores on a statewide math exam were normally distributed with ?=74 and ?=8. What proportion of test-takers had a grade between 66 and 88 on the exam?
Lecture(10.8): The Peabody Picture Vocabulary Test has a standard score mean of 100 and a standard deviation of 15. You tested a class of grade 2 students wonderinf if these scores would be different from the population. After testing this hypotheses you decided to continue looking at this data to determine if there are any group differences based on birth order. You group the children the on whether they are the oldest chlid, middle child, or the youngest child. Here is the data based on grouped information. Oldest child: 87 84 98 104 106 91 96 92 Middle child: 65 74 62 60 73 64 71 78 Youngest child: 115 84 85 83 95 94 108 102 89 Test the hypotheses at (alpha=0.05) level of signifance using the 5 step procedure.Make sure to clearly state the null and alternative hypotheses.Round your answer to 2 decimal. You are encouraged to use the following table to help you…
. How high are the levels for the highest (top) 4.8% of all children? Z- score = Answer =