The time X taken by a randomly selected applicant for a mortgage to fill out a...
The time X taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal distribution with µ = 10 minutes and σ = 2 minutes. (a) If five individuals fill out a form, what is the distribution of X¯, the average time taken by all five and find P(X <¯ 8). [2] (b) Suppose now that X is no longer normally distributed, but the mean and standard deviation are the same. However, 45 applicants fill the form. Answer the same questions as in a
Homework Answers
Add Answer to:
The time X taken by a randomly selected applicant for a mortgage
to fill out a...
Problem 4: (4 points) The time X taken by a randomly selected applicant for a mortgage...
Problem 4: (4 points) The time X taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal distribution with = 10 minutes and a = 2 minutes. (a) If five individuals fill out a form, what is the distribution of X, the average time taken by all five and find P(X <8). (2) (b) Suppose now that X is no longer normally distributed, but the mean and standard deviation are the same....
The time taken by a randomly selected applicant for a mortgage to fill out a certain...
The time taken by a randomly selected applicant for a mortgage to fill out a certain form has a Normal distribution with mean value 10 min and standard deviation 2 min. What is the probability that the amount of time taken is at most 12 min?
4. -/1 points DevoreStat9 5.E.051. My Notes Ask Your Teacher Time taken by a randomly selected...
4. -/1 points DevoreStat9 5.E.051. My Notes Ask Your Teacher Time taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal distribution with mean value 8 min and standard deviation 3 min. If five individuals fill out a form on one day and six on another, what is the probability that the sample average amount of time taken on each day is at most 11 min? (Round your answer to four decimal...
The time it takes a randomly selected rat to complete a maze is normally distributed with...
The time it takes a randomly selected rat to complete a maze is normally distributed with mean 1.5 minutes and standard deviation 0.35 minutes. (a) Find the probability that a randomly selected rat spends longer than 1.6 minutes to complete it. (b) We randomly take a sample of 100 rats. Find the probability that the average completion time for the sampled rats is smaller than 1.6 minutes. (c) We randomly take a sample of 4 rats. Find the probability that...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 32 minutes. c. Find the 75th percentile...
Los Angeles workers have an average commute of 31 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 31 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 15 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 37 minutes. c. Find the 85th percentile...
Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 32 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X ~ N(,) b. Find the probability that a randomly selected LA worker has a commute that is longer than 29 minutes. c. Find the 90th percentile...
Suppose the time it takes a data collection operator to fill out an electronic form for...
Suppose the time it takes a data collection operator to fill out an electronic form for a database is uniformly between 1.5 and 2.2 minutes a) (6 pts) What is the mean and variance of the time it takes an operator to fill out the form? b) (6 pts) What is the probability that it will take less than two minutes to fill out the form? c) (6 pts) Determine the value for x such that ?(? < ?) =...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-NG b. Find the probability that a randomly selected LA worker has a commute that is longer than 39 minutes. c. Find the 90th percentile for the...
Let x denote the time taken to run a road race. Suppose x is approximately normally...
Let x denote the time taken to run a road race. Suppose x is approximately normally distributed with a mean of 190 minutes and a standard deviation of 21 minutes. If one runner is selected at random, what is the probability that this runner will complete this road race in 218 to 242 minutes? Round answer to 4 decimal places.
Problem 4: (4 points) The time X taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal distribution with = 10 minutes and a = 2 minutes. (a) If five individuals fill out a form, what is the distribution of X, the average time taken by all five and find P(X <8). (2) (b) Suppose now that X is no longer normally distributed, but the mean and standard deviation are the same....
4. -/1 points DevoreStat9 5.E.051. My Notes Ask Your Teacher Time taken by a randomly selected applicant for a mortgage to fill out a certain form has a normal distribution with mean value 8 min and standard deviation 3 min. If five individuals fill out a form on one day and six on another, what is the probability that the sample average amount of time taken on each day is at most 11 min? (Round your answer to four decimal...
Los Angeles workers have an average commute of 33 minutes. Suppose the LA commute time is normally distributed with a standard deviation of 13 minutes. Let X represent the commute time for a randomly selected LA worker. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-NG b. Find the probability that a randomly selected LA worker has a commute that is longer than 39 minutes. c. Find the 90th percentile for the...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago