Cash-back offer from March 22nd to 31st, 2024: Get a flat 10% cash-back credited to your account for a minimum transaction of $50.Post Your Questions Today!

Question DetailsNormal
$ 18.00

MATH QUIZ 4 | Complete Solution

Question posted by
Online Tutor Profile
request

Question 1.1. Find the standardized variable z if x has Mean 12 and standard deviation 4. (Points : 1)
        Z = (x-4)/12
        Z = (12-x)/4
        z = (x-12)/4
        Z = (x+12)/4


Question 2.2. Find the area under the standard normal curve to the right of z = 1.65. Round to four decimal places. (Points : 1)
        .0495
        .9505
        .4505
        .0485


Question 3.3. Find the area under the standard normal curve to the left of z = 2.63 (Points : 1)
        .0043
        .0102
        .9957
        .9959


Question 4.4. Find the area under the standard normal curve over the interval z = −0.44 to z = 0.44. Compute probabilities using the standard normal table in Appendix B (Table 3). Round the answer to four decimal places. (Points : 1)
        0.3300
        0.3400
        0.3500
        0.3600


Question 5.5. Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 550 and a standard deviation of 100. Find the probability that a student will score over 680.  Round your answer to four decimal places. (Points : 1)
        0.1587
        0.0968
        0.1459
        0.9032


Question 6.6. Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 600 and a standard deviation of 100. Find the probability that a student will score between 410 and 700.  Round your answer to four decimal places. (Points : 1)
        0.9635
        0.7826
        0.8347
        0.8126


Question 7.7. A population has mean 70 and standard deviation 15.  Calculate mean of x bar for a random sample of size 20. (Points : 1)
        15
        3.5
        .75
        70


Question 8.8. A population has mean 53 and standard deviation 12.  Calculate the standard deviation of x bar for a random sample of size 12. (Points : 1)
        1.1
        3.5
        4.4
        3.3


Question 9.9. Suppose the weights of packages of lettuce coming off a packaging line have a normal distribution with mean 8.7 ounces and standard deviation 0.2 ounce. If every package is labeled 8.9 ounces, what proportion of the packages weigh less than the labeled amount? (Points : 1)
        76%
        84%
        98%
        87%


Question 10.10. Suppose the weights of the contents of cans of mixed nuts have a normal distribution with mean 32.6 ounces and standard deviation 0.4 ounce.
 
If two packages are randomly selected, what is the probability that the average weight is less than 32 ounces?
 
Round to one decimal place. (Points : 1)
        1.7%
        2.3%
        1.3%
        2.5%

Available Answer
$ 18.00

[Solved] MATH QUIZ 4 | Complete Solution

  • This Solution has been Purchased 1 time
  • Submitted On 26 May, 2015 09:42:21
Answer posted by
Online Tutor Profile
solution
Question 1.1. Find the standardized variable z if x has Mean 12 and standard de...
Buy now to view the complete solution
Other Similar Questions
User Profile
Tutor...

HESI A2 MATH Quizes

Answer-HESIA2 MATH Quizzes...
User Profile
NUMBE...

MATH QUIZ 4 | Complete Solution 100% Satisfaction Guaranteed!

Z = (x-4)/12 Z = (12-x)/4 z = (x-12)/4 Z = (x+12)/4 .0043 .0102 .9957 .9959...
User Profile
Exper...

MATH QUIZ 4 | Complete Solution

Question 1.1. Find the standardized variable z if x has Mean 12 and standard deviation 4. (Points : 1) Z = (x-4)/12 Z = (12-x)/4 z = (x-12)/4 Z = (x+12)/4 Question 2.2. Find the area under th...

The benefits of buying study notes from CourseMerits

homeworkhelptime
Assurance Of Timely Delivery
We value your patience, and to ensure you always receive your homework help within the promised time, our dedicated team of tutors begins their work as soon as the request arrives.
tutoring
Best Price In The Market
All the services that are available on our page cost only a nominal amount of money. In fact, the prices are lower than the industry standards. You can always expect value for money from us.
tutorsupport
Uninterrupted 24/7 Support
Our customer support wing remains online 24x7 to provide you seamless assistance. Also, when you post a query or a request here, you can expect an immediate response from our side.
closebutton

$ 629.35