the analysis made on 40 samples, the average of the data was found to be 500 standard deviations 20 and find the confidence interval at the level of 99% confidence in the mean? A) 491.8413<µ<500.159 B) 39.34<µ<41.43 C) 8199<µ<8601 D) 491.8413<µ<508.1586 E) 10,594<µ<11,906

the analysis made on 40 samples, the average of the data was found to be 500 standard deviations 20 and find the confidence interval at the level of 99% confidence in the mean? A) 491.8413<µ<500.159 B) 39.34<µ<41.43 C) 8199<µ<8601 D) 491.8413<µ<508.1586 E) 10,594<µ<11,906

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

17 -

F32)

In the analysis made on 40 samples, the average of the data was found to be 500 standard deviations 20 and find the confidence interval at the level of 99% confidence in the mean?

A)	491.8413<µ<500.159

B)	39.34<µ<41.43

C)	8199<µ<8601

D)	491.8413<µ<508.1586

E)	10,594<µ<11,906

Expert Solution

Step 1

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

Find the error bound for an unknown population mean or the margin of error that corresponds to a 85% confidence level with a sample of n =33 and the sample standard deviation of 16.
The ages of a group of 180randomly selected adult females have a standard deviation of 16years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let σ=16years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 95%confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population?
The ages of a group of 154 randomly selected adult females have a standard deviation of 18.2 years, Assume that the ages of female statistics students have less variation than ages of females in the general population, so let o = 18.2 years for the sample size calculation, How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 98% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? The required sample size is (Round up to the nearest whole number as needed.) Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? O A. No, because statistics students are typically older than people in the general population. O B. No, because there is no…
The ages of a group of 147 randomly selected adult females have a standard deviation of 17.1 years. Assume that the ages of female statistics students have less variation than ages of females in the general population, so let o = 17.1 years for the sample size calculation. How many female statistics student ages must be obtained in order to estimate the mean age of all female statistics students? Assume that we want 99% confidence that the sample mean is within one-half year of the population mean. Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? The required sample size is. (Round up to the nearest whole number as needed.) Does it seem reasonable to assume that the ages of female statistics students have less variation than ages of females in the general population? O A. Yes, because statistics students are typically older than people in the general population. O B. Yes, because statistics…
In a medical examination, 300 people undergo a height measurement and was found out that the average height of all are 150cm. If the standard deviation is 19, find the number of people that fall under the given conditions: With height less than 132cm. With height from 140 cm to 180 cm With height taller than 200 cm With height from 160cm to 195 cm With height from 150 cm to 200cm Determine the range of the height that includes the central 60% 45% of the people who undergo the medical examinations are qualified to be part of the varsity. What is the limit height to be part of the varsity?
Scores on the wechsler adult intelligence scale for the 20-to-34 age group are approximately normally distributed with a mean of 110 and a standard deviation of 25 1.) sketch a picture of the distribution and label the scale 2.) Between what two scores do the middle 95% of all people between the ages of 20 and 34 fall within 3.) How high must a person score to be in the top 15% of all scores
True or False 4) The standard deviation describes the differences between x. 5) Keep other factors constant, the standard error with a sample size of 50 islarger than the standard error with a sample size of 100. 6) Keeping other factors constant, the 90% CI has a broader range with a samplesize of 50 than with a sample size of 100. 7) Keeping other factors constant, the 99% CI has a broader range than the 95% CI.
3. The life in hours of a 75-watt light bulb is known to be normally distributed with σ = 25 hours. Arandom sample of 20 bulbs has a mean life of 1014 hours. Determine the lower limit of the 99%confidence interval on the mean life.
The level of dissolved oxygen in a river indicates the water’s ability to support aquatic life. A research project is started to determine if the oxygen levels in the river have changed. A study done 10 years prior, showed that the mean oxygen levels in milligrams per liter for the river was 4.3. A.) Write appropriate hypotheses for this test B.) Water is collected samples from 15 randomly chosen locations along the river and measured the dissolved oxygen. Construct and interpret a 95% confidence interval for the mean dissolved oxygen level for this stream. The results are in milligrams per liter: 4.53 5.5 4.01 5.04 4.83 4.66 3.29 4.4 2.87 5.23 5.42 5.73 4.13 6.38 5.55 C.) Based on the sample from part B, conduct a significance test of these results using a 5% significance level. Give complete results of the test including a p-value and what the results means.
23) The records of 100 postal employees who volunteered for a study, showed that the average time these employees had worked for the postal service was x = standard deviation of the population of time postal service employees have spent with the postal service is approximately 8 years. Assume that we know that the normal with standard deviation o 5 years. A 95% confidence interval for the mean time u the population of postal service employees have spent with the postal service is:
2) The average life of a special rechargeable battery for a Calculator that performs 45 functions is 700 hours, with A standard deviation of 37 hours. A sample of 50 batteries is randomly selected, what percentage of the batteries will last more then 705 hours?
A random sample of size 64 generated a sample mean of 80. The sample standard deviation is 16. a) Calculate the confidence interval (CI) for 95% confidence level (CL) for the population mean. b) What are the values of CI if CL changed to 90%?