of your choice on a separa1. Which of the following random variable would you expect to be discrete?A. The weighta of mechanically produced itemsB. The number of children at a Christmas partyC. The times, in seconds, for a 100m sprintD. The lifetimes of resistors2. x is a random variable, with meanH and standard deviation ở . Thestandardized form of x is z = (X – µ)/0. What are the mean and standarddeviation, respectively of z?А. О, 1В. 1, оС. 2, оD. 2, 13. A distribution of data has a mean of 15 and a standard deviation of 2, Howmany standard deviations away fron the mean is a value of 13?A. One standard deviation above the meanB. Two standard deviation above the meanC. One standard deviation below the meanD. Two standard deviation below the mean4. The average waist size for teenage males is 29 inches with the standarddeviation of 2 inches, What is the z-score of a teenage male with a 33 incheswaist size?A. -2В. -1С. 1D. 25. If 99.7% of the teenage males in #4 will be considered, what are the limits oftheir waist size?A. 23 - 33 inB. 23 -35 in C. 24 - 34 inD. 25 - 35 in6. What is the area that corresponds to z-value, z = 1.21?B. 0.36650C. 0.38686A. 0.34375D. 0.40320 7. What is the area that corresponds to g-value, z-0.91?B. 0.34375C. 0.36650D. 0.40320A. 0.318598. If the area under the normal distribution is 0.44179 what z-valuecorrespond to it?A. -1.57B. -1.47C. 1.56D. 1.589. What is the area under the standard normal curve to the right of z - 2.67?A. 0.0038В. 0.0869C. 0.1234D. 0.996210. For the standard normal distribution, what is the area between z- 0.94 and2=0.947A. 0.1736B. 0.3264C. 0.6528D. 0.826411. What value of z has an area of 0.20 to the left of z?B. -0.84A. 2.05С. 0.84D. 2.0512.The distribution of heights of SHS male students is approximately normalwith mean 65 inches and standard deviation 2 inches. What percentage ofmale students are taller than 69 inches?A. 1%В. 2.3%С. 5%D. 16%13. The shelf life of a particular dairy products is normally distributed with amean of 12 days and a standard deviation of 3 days. About what percent ofthe products will last between 12 and 15 days?A. 2,5%В. 16%C. 34%D. 68%14. The mean life of a tire is 30,000 km and the standard deviation is 2,000 km.What are the possible limits if 68% of all tires will be considered?A. 24,000 km and 34,000 kmB. 26,000 km and 34,000 kmC. 27,000 km and 31,000 kmD. 28,000 km and 32,000 km15.A company makes parts for a machine. The lengths of the parts must bewithin a certain limit or they will be rejected. A large number of parts weremeasured and the mean and the standard deviation were calculated as 3, 1mand 0,005m, respectively. What are the limits if 99.7% of the parts wereaccepted?A. Between 3.075m and 3,125 mB. Between 3.080m and 3,120 mC. Between 3.085m and 3. 1 15 mD. Between 3,090m and 3.110 m12

Name: of your choice on a separa1. Which of the following random variable w
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: of your choice on a separa1. Which of the following random variable would you expect to be discrete?A. The weighta of mechanically produced itemsB. The number of children at a Christmas partyC. The times, in seconds, for a 100m sprintD. The lifetime

Since you have posted multiple questions , we will solve first question for you. To get the…

Math

Statistics

1. Which of the following random variable would you expect to be discre te? A. The weighta of mechanically produced items B. The num ber of children at a Christmas party C. The times, in seconds, for a 100m sprint D. The lifetimes of resistors 2. x is a random variable, with mean and standard deviation a standardized form of x is z (X-4)/0. What are the mean and standard deviation, respectively of z? A. 0, 1 · The в. 1, 0 с. 2, 0 D. 2, 1 3. A distribution of data has a mean of 15 and a standard deviation of 2. How many standard deviations away fron the mean is a value of 13? A. One standard deviation above the mean B. Two standard deviation above the mean C. One standard deviation below the mean D. Two standard deviation below the mean atandard

1. Which of the following random variable would you expect to be discre te? A. The weighta of mechanically produced items B. The num ber of children at a Christmas party C. The times, in seconds, for a 100m sprint D. The lifetimes of resistors 2. x is a random variable, with mean and standard deviation a standardized form of x is z (X-4)/0. What are the mean and standard deviation, respectively of z? A. 0, 1 · The в. 1, 0 с. 2, 0 D. 2, 1 3. A distribution of data has a mean of 15 and a standard deviation of 2. How many standard deviations away fron the mean is a value of 13? A. One standard deviation above the mean B. Two standard deviation above the mean C. One standard deviation below the mean D. Two standard deviation below the mean atandard

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

Similar questions

Use these statements for 8-10. Suppose x has a distribution with a mean of 13.9 and a standard deviation of 2.1. Random samples of size n=49 are drawn What would be the mean and standard deviation of the distribution?
Let X de a normally distributed variable with a population standard deviation = 43. A research believe that the standard deviation should increase when a new variable is manipulated. To test their claim, the research collects a sample of size n = 19 and finds a sample statistic of 8 = 53. Use the x²-table to find the largest value that the corresponding P-value can be. Type your answer...
K The IQ scores for a random sample of subjects with low lead levels in their blood and another random sample of subjects with high lead levels in their blood were collected. The statistics are summarized in the accompanying table. Assume that the two samples are independent simple random samples selected from normally distributed populations. Do not assume that the population standard deviations are equal. Complete parts (a) to (c) below. tcrunch @ W S OA. Ho: H₁ H2 H₁: H1 H2 = OC. Ho: P1 P2 H₁: H1 H₂ The test statistic is a. Use a 0.05 significance level to test the claim that the mean IQ score of people with low blood lead levels is higher than the mean IQ score of people with high blood lead levels. What are the null and alternative hypotheses? Assume that population 1 consists of subjects with low lead levels and population 2 consists of subjects with high lead levels. The P-value is State the conclusion for the test. Tech help ZO F3 (Round to two decimal places as needed.) (Round…
6
For the values 2, 4, 6 the standard deviation is O 1.36 O2.36 1.63 O 1.2 O2.63
J 1
f the standard deviation of a normally distributed population is 22.0 and we take a sample of size 4, then the standard error of the mean is
Suppose you take a random sample of n = 80 Douglas College students and ask each student their age. You find that the mean age of students in this sample is X = 22.0375 years and the sample standard deviation is s = 3.2014 years. Which of the following are sufficient conditions and are also true (to the best of our knowledge) for this study of Douglas College students’ ages? Select all that apply. A. X is normal variable B. n is greater or equal to 30 C. nq is greater or equal to 5 D. np is greater or equal to 5
A Le esc 4. For a population with a mean of 100 and a standard deviation of 20, Find the X value that corresponds to each of the following z-scores -.40, -.50, 1.80, .75, 1.5, -1.25 -1 ! 1 1,433 F1 Q B @ 2 F2 W 9 #3 me numerical value the stoc 80 F3 F $ 4 a F4 R % сторо 5 9 KO F5 MacBook Air < 6 FEB 11 F6 & 7 F7
Suppose that X is a normal random variable with a mean of μ = -50 and a standard deviation of o= 8. Determine the value of x so that Pr[X > x] = Pr[Z > -0.75], where Z is the standard normal random variable. A. 56 B. 44 C.-6 OD. -44 E. -56
80 84 94 65 72 55 84 99 86 87 For this population answer the following 6 questions. 1. Find U=. 2. Find O - %3D 3. Find the standard deviation = 4. Find the Z-score of 75. 5. How many standard deviations from the mean is the score of 62? 6. What score represents a Z-score of -2 for this popuiation? shows thos ve
In one town, the number of burglaries in a week has a mean 28. Let X denote the number of burglaries in the town in a day. Find the standard deviation of X O a 5.2915 O b. 28 Od 2