A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is OA 0.9772 O B. 0.5228 C. 0.0228 OD. 04772

A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability that the sample mean will be larger than 82 is OA 0.9772 O B. 0.5228 C. 0.0228 OD. 04772

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

Related questions

Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…

Q: Assume the random variable X is normally distributed with mean u = 50 and standard deviation o = 7.…

A: Let X be the random variable which follows normal distribution with mean 50 and standard deviation…

Q: An article the Journal of the American Medical Association (1992) examined whether the true mean…

A: From the provided information, Sample size (n) = 25 Sample mean (x̅) = 98.25oF Sample standard…

Q: The weight of trucks traveling on a particular section of I-475 has a population mean of 15.8 tons…

A: Central limit theorem: The central limit theorem implies that the distribution of the sample means…

Q: The lifetime risk of developing pancreatic cancer is about one in 78 (1.28%). Suppose we randomly…

A: Given that, The lifetime risk of developing pancreatic cancer is about one in 78

Q: The ages of the population of 2,000 women are normally distributed with a mean of 35 years and…

A: Given: The ages of the population of 2,000 women are normally distributed with a mean of 35 years.…

Q: the mean for test 1 is 50. and the standard deviation is 7. then the probability that a group of 49…

A: Mean(μ)=50 standard deviation(σ)=7

Q: The average American man consumes 9.8 grams of sodium each day. Suppose that the sodium consumption…

A: From the provided information, Mean (µ) = 9.8 grams Standard deviation (σ) = 1 grams

Q: A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40.…

A: A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40.…

Q: A population has a mean u= 83 and a standard deviation o = 24. Find the mean and standard deviation…

A: Introduction: The sampling distribution of the sample mean, X̄, based on a sample of size n, taken…

Q: Assuming the BMI of children aged 8 to 12 is normally distributed with a mean 25 and a standard…

A: Solution Given That, Assuming the BMI of children aged 8 to 12 is normally distributed with a mean…

Q: A sample of size 50 will be drawn from a population with mean 10 and standard deviation 8. Use the…

A: Sample size (n) = 20 Mean (u) = 10 Standard deviation (s) = 8

Q: he IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one…

A: Given that Mean=100 SD=15 X = IQ of an individual. The probability that a randomly selected person…

Q: The mean monthly electricity expenses of randomly selected 39 households is 192 TL with a standard…

Q: A population has a mean of 53 and a standard deviation of 21. A sample of 81 observations will be…

A: Continuous Probability Distribution When normality is included in the research of a big sample…

Q: Assuming the mean length is 3.00 . Find the probability that the next measured part will have a…

A: It is given that the mean is 3.00 and standard deviation is 0.105.

Q: The mean length of a human pregnancy is 265days, with a standard deviation of 9 days. Use the…

Q: A die is rolled 15 times. Denote by X the number of times it shows six spots. Calculate the standard…

A: a die is rolled 15 times.X: the number of times it shows six spots.X~binomial(n,p)where n=15 ; no.…

Q: iven a normal population whose mean is 580 and whose standard deviation is 77, find each of the…

A: Given that μ=580,σ=77

Q: These babies will have a mass of less than how many pounds?

A: Given that masses of newborns are normally distributed with a mean of 6.6 lbs. and a standard…

Q: A data obtained from a random sample has mean 68 and standard deviation 35. The value whose Z-score…

Q: Given a population where p = 0.10, find the standard deviation of the samping distribution when n =…

Q: A normally distributed population has mean 1,200and standard deviation 120. Find the probability…

Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…

A: Given. Mean =9.6 Standard deviation=0.9

Q: A normal population has a mean of 37 and a standard deviation of 8 A.What proportion of the…

A: Given Population mean μ=37, standard deviations σ=8

Q: A successful basketball player has a height of 6 feet 6 inches, or 198 cm. Based on statistics from…

Q: Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs.…

A: Given information: μ=245.7σ=34.5sample size, n=32

Q: The average American man consumes 9.9 grams of sodium each day. Suppose that the sodium consumption…

A: Given: μ=9.9σ=0.9 a) The distribution of X is normal with mean 9.9 and standard deviation 0.9. Thus,…

Q: Assume that a sample is used to test a normal population mean u. A sample is of size 32 with a mean…

Q: he average age of vehicles registered in the United 96 months. Assume the population is normally…

A: Given: μ=96, σ=15, n=36 Calculate the corresponding z scores as:

Q: The length of time taken to complete a particular task on a construction site is found to be…

Q: A grocer finds that the cantaloupes in his store have weights with mean 0.7 kg and standard…

A: Given, Mean weight of cantaloupes is 700 gm. Standard deviation is 53 gm

Q: Assume that a basketball game final scores are normally distributed with a mean of 75 and a standard…

A: Mean = 75Standard deviation = 8

Q: A data obtained from a random sample has mean 68 and standard deviation 35. The value whose Z-score…

Q: Based on a poll, 31.5% of adults over the age of 25 have a bachelor's degree or higher. Assume that…

A: If discrete random variable x is having binomial distribution then, Mean and standard deviations are…

Q: The lifetime risk of developing pancreatic cancer is about one in 78 (1.28%). Suppose we randomly…

A: As prof. N. G. Das said "Let there are n trials and each having two outcomes - Success and Failure.…

Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…

A: Given,Mean μ = 9.6Standard deviation σ = 0.8

Q: Suppose that the number of points scored in a game comes from a normal population with an average of…

A: Here points scored follows Normal distribution with mean 12 and SD 9. Here we need to use the…

Q: The lifetime risk of developing pancreatic cancer is about one in 78 (1.28%). Suppose we randomly…

Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

Bof 35) - Google Chrome
du.om/mod/quiz/attempt.php?attempt=1894561&cmid=88s80318page=27
NING SYSTEM (ACADEMIC)
NESS STATISTICS I- Spring21
Time left 0:28:20
Quiz
A population has a mean of 80 and a standard deviation of 7. A sample of 49 observations will be taken. The probability
that the sample mean will be larger than 82 is
O A. 0.9772
Zaki
13
O B. 0.5228
• C. 0.0228
O D. 0.4772
CLEAR MY CHOICE
Finis
P
ENG d0 A A

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

A sample of 314 patients between 38 and 82 were given a drug intended to reduce their level of cholesterol. The results were the mean reduction in cholesterol of 0.94 millimole per liter. Assume the population standard deviation is σ = 0.18. Construct a 98% C.I.
Given a sample with a mean of 151 and a standard deviation of 27, find the probability that a randomly-selected data point from the sample will have a value greater than 158.0.
The average score of all golfers for a particular course has a mean of 61 and a standard deviation of 5. Suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 62. Round to four decimal places. O A. 0.1293 B. 0.3707 O C. 0.4772 O D. 0.0228
The plasticity of a polyethylene is affected by the concentration of a solution. When low concentration of the solution is used, the true mean plasticity is 55. And when high concentration is used, the mean plasticity is 62. The standard deviation of plasticity is 4 regardless of concentration of the solution. If two random samples of size 18 are taken, find the probability that Xhigh – X low 2 5. Include your solutions. O a. Probability is about 98% O b. Probability is about 7% O. NONE O d. Probability is about 93%
Assume that the average weight of an NFL player is 245.7 lbs with a standard deviation of 34.5 lbs. The distribution of NFL weights is not normal. Suppose you took a random sample of 32 players. What is the probability that the sample average will be between 240 and 252 lbs? Round your answer to three decimal places, eg 0.192.
A population of values has a mean of 38.5 and standard deviation of 80.4. Find the probability that a sample of 247 values from this population will have a mean between 31.3 and 44.1.
It is observed that chances of rain during July has a standard deviation of 7. Find the mean if the z-score is -1.26 and the chances of rain is for 12 days. O 15 O 17 23 O 21 O 19
Find the standard deviation a for the bionomal distribution which has the stated values of n and p.
The average life span of one particular brand of refrigerator is 12 years with a standard deviation of 0.8. Find the percentage of the refigerators that last between 10 and 14.5 years. O 99.3% 99.9% 95.9% 97.8% ▶
Suppose that you have a four-sided die that is equally weighted (i.e. equal chance of any of the four sides landing face up). The four values on the die are [12.5968, 2, -2 and -12.5968] . What is the standard deviation using the conceptual definition? That is, what is the average distance from the data points to the mean? A. 5.34 B. 4.09 C. 2.58 D. 7.29
What is the standard deviation if the variance is 6.25? A, 2.5 B, 2.8 C. 3.5 D. 3.8
The average American man consumes 9.5 grams of sodium each day. Suppose that the sodium consumption of American men is normally distributed with a standard deviation of 0.8 grams. Suppose an American man is randomly chosen. Let X = the amount of sodium consumed. Round all numeric answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. Find the probability that this American man consumes between 9.2 and 10.1 grams of sodium per day. c. The middle 20% of American men consume between what two weights of sodium? Low: High: