1. A soda machine dispenses soda into 16-ounce cups. Tests shows that the actual amount of sodadispensed has a mean of 15.85 oz and a standard deviation of 9.5 oz. A sample of 12 cups is taken.la) What is the probability that the samplemean is at most 11.25?1b) What is the probability that the samplemean is between 14.75 and 22.5?

The mean is 15.85 and the standard deviation is 9.5.

Answered: 1. A soda machine dispenses soda into…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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A certain species of tree has an average height of 22 ft with a standard deviation of 3 ft. Which of the following is more likely to exceed 24 ft? A. The average height of a sample of 33 trees B. Not enough information given to compare the choices C. The height of a single tree D. The average height of a sample of 12 trees
3. Normal Distribution and Z - Scores Assume a normal distribution for a population of scores for a standardized exam. The average exam score is 70, and the standard deviation is 5. Jeff's exam score is 63. a) What percentage of the population has an exam score greater than Jeff's? b) What percentage of the population has an exam score greater than Jeff's but less than the score of 74? c) If 10,000 people were given the exam, how many of them have an exam score less than Jeff's?
find the standard deviation for: 25% of students who took an examination scored more than 73 in an examination. if the mean examination score is 63. the length of a fully grown plant has a mean of 35cm. 5% of these plants are longer than 45 cm Show all workings.
3. Assume the heights of students at Champlain College are normally distributed with a mean of 64.0 inchesand a standard deviation of 1.2 inches. Which of the following values best approximates the probabilityof randomly selecting a Champlain College studenttallerthan 62.2 inches?A. 0.0668B. 0.0359C. 0.9332D. 0.9641E. 1.0155
1. The full weight of a brand of a pack of sweet potato fries is a random variable with u = 450 g and 6 = 5.1 g. Assume that you pick a random of pack from the population. a. Find the proportion of packs that contain less than 440g.
he Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The idget weights have a mean of 42 ounces and a standard deviation of 5 ounces. se the Empirical Rule. uggestion: sketch the distribution in order to answer these questions. O 68% of the widget weights lie between 37 o and 47 p) What percentage of the widget weights lie between 27 and 47 ounces? 34 =) What percentage of the widget weights lie below 52 ? 0.84134 Question Help: DVideo O Post to forum Calculator Submit Question 2 Type here to search
please answer d. e. and f.
A population has a normal distribution with a mean of 32.9 and a standard deviation of 35.2. Draw 4. a normal curve with labels, shading, and what you entered into the calculator for full credit. Round your answer to 4 decimal places. Find the probability that a randomly selected item is between 27.5 and 40.6 a) Find the probability that a sample size of 25 is randomly selected and is less than 28.2. b)
III. SAMPLING AND SAMPLING DISTRIBUTIONS Assume that the systolic blood pressure of 30-year-old males is normally distributed, with an average of 122 mmHg and a standard deviation of 10 mmHg. а. b. Calculate the probability that the blood pressure of an individual male from this population will be between 118 and 124 mmHg.
1. A group of 500 volunteers recorded an average age of 21.5 years and standard deviation of 9.6 years. Assumed the distribution is normally distributed. d) If 2.5% of the volunteers are older than Shirley how old is she? e) Between what ages is the middle 40% of the volunteers?

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