Homework Answers
Add Answer to:
please show steps for Q7
QUESTION 5 The central limit theorem states that regardless of the...
For each of the following give the name of the sampling method The Central Limit Theorem...
For
each of the following give the name of the sampling method
The Central Limit Theorem (CLT) is one of the most important theorems in Statistics. Determine if each of the following statements about the Central Limit Theorem is Valid or Invalid. Write a sentence to explain your answer. a) The average (center) of all the random sample means will be a good (3pts) b) The distribution of random sample means is normally distributed for (3pts) c) The CLT only...
Central Limit Theorem for Means/Calculator Understand sampling distributions and the Central Limit Theorem for Means Question...
Central Limit Theorem for Means/Calculator Understand sampling distributions and the Central Limit Theorem for Means Question A head librarian for a large city is looking at the overdue fees per user system wide to determine if the library should extend its lending period. The average library user has $19.67 in fees, with a standard deviation of $7.02. The data is normally distributed and a sample of 72 library users is selected at random from the population. Select the expected mean...
2. Evaluate the following statement. To answer this question please state the Central Limit Theorem and...
2. Evaluate the following statement. To answer this question please state the Central Limit Theorem and explain why central limit theorem is so important. The samples mean of a random sample of n observations from a normal population with mean u and variance o2 is a sampling statistics. The sample mean is normally distributed with mean u and variance oʻ/n due to central limit theorem.
The Central Limit Theorem allows us to estimate the parameters as well as describe the distribution...
The Central Limit Theorem allows us to estimate the parameters as well as describe the distribution for a sampling distribution. Which of the following descriptions is false? O If N is large, we can compute the standard error of the mean using a specified formula O None of these are false O If N is large, the mean of the sampling distribution is the same as the mean of the population from which the samples were selected. If N is...
QUESTION 11 The starting salaries of individuals with an MBA degree are normally distributed with a...
QUESTION 11 The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. What percentage of MBA's will have starting salaries of $77,000 to $99,000? 27.99% 42.07% 30.50% 41.58% QUESTION 12 The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. Suppose we randomly select 9 of these individuals with an MBA degree. What is...
17. According to the Central Limit Theorem, a distribution of sample means based on a sample...
17. According to the Central Limit Theorem, a distribution of sample means based on a sample of n= 7 will approximate normality even if the data in the parent population are not normal. 18. When performing hypothesis tests or computing confidence intervals based on large samples, it is necessary to assume that the data in the parent population(s) are distributed normally. 19. To estimate u within two units with 95% confidence and o= 10 requires n be at least 100.
A recruiting firm report on starting salaries states that starting salaries for finance majors are skewed...
A recruiting firm report on starting salaries states that starting salaries for finance majors are skewed to the right, with a nationwide mean of $58,993. a. We collect starting salary data from a random sample of 50 recently graduated finance majors from a well- regarded business program at a large state university. Why is it okay to use these data for inference even though the population is skewed? b. The standard deviation of the 50 salaries in our sample was...
you extract a sample of 115 students from this university. The sample proportion is the proportion...
you extract a sample of 115 students from this university. The sample proportion is the proportion of students in this sample who live on campus. The standard deviation of the sampling distribution of this sample proportion, rounded to four decimal places, is: 5. A random sample of 82 customers, who visited a department store, spent an average of $71 at this store. Suppose the standard deviation ofexpenditures at this store is σ. $19. The 98% confidence interval for the population...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary of people in a country, so you take a random sample of 121 people from around the country. The sample had an average salary of 545000 dollars with population standard deviation of 50000 dollars Calculate the Upper Limit of the confidence Interval for the mean salary of the people in the country Reminders You only need to calculate the Upper Limit of the confidence...
True or False: the central limit theorem states that the sampling distribution of the sample mean...
True or False: the central limit theorem states that the sampling distribution of the sample mean is approximately normal whenever the population from which we are sampling is normally distributed Assume that 14% of the items produced in an assembly line operation are defective, but that the firm’s production manager is not aware of this situation. Assume firtber that the wuality assurance department to determine the quality of the assembly operation tests 50 parts. What is the probability that the...
For
each of the following give the name of the sampling method
The Central Limit Theorem (CLT) is one of the most important theorems in Statistics. Determine if each of the following statements about the Central Limit Theorem is Valid or Invalid. Write a sentence to explain your answer. a) The average (center) of all the random sample means will be a good (3pts) b) The distribution of random sample means is normally distributed for (3pts) c) The CLT only...
Central Limit Theorem for Means/Calculator Understand sampling distributions and the Central Limit Theorem for Means Question A head librarian for a large city is looking at the overdue fees per user system wide to determine if the library should extend its lending period. The average library user has $19.67 in fees, with a standard deviation of $7.02. The data is normally distributed and a sample of 72 library users is selected at random from the population. Select the expected mean...
2. Evaluate the following statement. To answer this question please state the Central Limit Theorem and explain why central limit theorem is so important. The samples mean of a random sample of n observations from a normal population with mean u and variance o2 is a sampling statistics. The sample mean is normally distributed with mean u and variance oʻ/n due to central limit theorem.
The Central Limit Theorem allows us to estimate the parameters as well as describe the distribution for a sampling distribution. Which of the following descriptions is false? O If N is large, we can compute the standard error of the mean using a specified formula O None of these are false O If N is large, the mean of the sampling distribution is the same as the mean of the population from which the samples were selected. If N is...
17. According to the Central Limit Theorem, a distribution of sample means based on a sample of n= 7 will approximate normality even if the data in the parent population are not normal. 18. When performing hypothesis tests or computing confidence intervals based on large samples, it is necessary to assume that the data in the parent population(s) are distributed normally. 19. To estimate u within two units with 95% confidence and o= 10 requires n be at least 100.
you extract a sample of 115 students from this university. The sample proportion is the proportion of students in this sample who live on campus. The standard deviation of the sampling distribution of this sample proportion, rounded to four decimal places, is: 5. A random sample of 82 customers, who visited a department store, spent an average of $71 at this store. Suppose the standard deviation ofexpenditures at this store is σ. $19. The 98% confidence interval for the population...
Question of 6 Question 1 5 points Save Answer You want to estimate the mean salary of people in a country, so you take a random sample of 121 people from around the country. The sample had an average salary of 545000 dollars with population standard deviation of 50000 dollars Calculate the Upper Limit of the confidence Interval for the mean salary of the people in the country Reminders You only need to calculate the Upper Limit of the confidence...
Most questions answered within 3 hours.
-
You capture data by having 8 people fill in 30 small dots on a
piece of...
asked 3 hours ago -
What are the z-values such that 70% of the area lies in the
middle of the...
asked 5 hours ago -
You borrow $29,500 to purchase a brand new car. The interest
rate is 6%, and the...
asked 5 hours ago -
The amount of time it takes an asteroid, whose average distance
from the Sun is 4.70...
asked 5 hours ago -
A 0.289 kg mass slides on a frictionless floor with a speed of
1.34 m/s. The...
asked 5 hours ago -
15.A box contains five red balls, three green balls, and two
yellow balls. Suppose you select...
asked 8 hours ago -
Assume you are given the following for Stackelberg industries:
Return on Assets (ROA) = 8%
Debt...
asked 6 hours ago -
an engineer proposes to use mmWave in 5G network to
increase data rate.
What are the...
asked 6 hours ago -
Explain the idea behind using SEMIJOIN in distributed
query processing.
asked 6 hours ago -
why
is context important in selecting and applying guidelines and
principles for interface design?
illustrate your...
asked 6 hours ago -
In a certain board game, a player rolls two fair six-sided dice
until the player rolls...
asked 8 hours ago -
You are going to deposit $3,200 in an account that pays .58
percent interest compounded quarterly....
asked 6 hours ago