nswer question 2 only...please fast 1. The number of groups visiting a remote hut in the woods isgiven by a random variable X with the following probability dis-tribution (assume there are never more than 4 groups visiting)XP(X)350 240 270?050(b) Compute and give the two-way table of expected counts un-der the assumption that the size of gift and donation statusare independent.2 |3| 4(c) Use the given table, the table from part b, and your calcu-lator to carry out a hypothesis test to determine if there isconvincing evidence that the proportions in the two donationcategories are not the same for all three types of 1equesta.Report the P-value, and state your conclusion with a signif-icance level of 01.(a) What value shoukd replace the question mark to make this avalid distribution?(b) Find the probability that at least one group visits the hut ina given day.4 A machine that cuts corks for wine bottles operates in such a waythat the distribution of the diameter for the corkai is well approx-imated by a normal distribution with mean 3 cm and standarddeviation (0.2 em. The specifications cal for corks with diametersbetween 2.9 and 3.1 cm. What proportion of corks produced bythis machine are defective?(e) Find the mean uumber of groups that will visit the hut on agiven day.2. At a large high school, 30% of students play at least one varsitysport.(a) What is the expected mumber of students at the high schoolyou would need to interview before you found one that wasnot a varsity athlete.(b) A random sample of 30 students is taken. Find the proba-bility that at least 10 are varsity athletes.(e) A random sample of 30 students is taloen. Find the meannumber of varsity athletes selected and the standard devia-5. An environmental group the believes that an industrial plant maybe exceeding pollution limits. They take four readings to analyzewhether the true mean discharge of wastewater exceeded the le-gal limit of 600 gallons per hour. The environmental group uses aone-sided hypothesis test with a = 05. For each of the followingstatements, say whether the statement is true or false and explaintion.your answer.3. A study was done to determine whether including a gift with arequest for a donation affects the proportion who will make adonation. Suppose the following results were obtained.(a) If the plant is actually discharging an average of 600 gal-lons per houns, there is only a 5% chance that the group willconclude that the plant is exceeding the limit.(b) If the P-value is P = 03, the environmental group shouldconclude that the plant is within legal limits.Donation No Donation280252No Gift40(c) If the plant is exceeding the limit, there is only a 5% chancethat we will conclude that it is exceeding the limit.Small Gift46Large Gift68247(a) Suppose a random participant from the study is selectedWhat is the probability that they were sent a large gift, giventhat they made a donation?

Name: nswer question 2 only...please fast 1. The number of groups visiting a
Uploaded: 2024-03-20T07:07:37.000Z
Channel: Bartleby
Description: nswer question 2 only...please fast 1. The number of groups visiting a remote hut in the woods isgiven by a random variable X with the following probability dis-tribution (assume there are never more than 4 groups visiting)XP(X)350 240 270?050(b) Com

Expectation or Expected value: It is defined as the sum of all possible values each multiplied by…

Math

Statistics

1. The number of groups visiting a remote hut in the woods is given by a random variable X with the following probability dis- tribution (asume there are never more than 4 groups visiting) 01 2 3 P(X) 350 240 270 (a) What value should replace the question mark to make this a valid distribution (b) Find the probability that at least one group visits the hut in a given day

1. The number of groups visiting a remote hut in the woods is given by a random variable X with the following probability dis- tribution (asume there are never more than 4 groups visiting) 01 2 3 P(X) 350 240 270 (a) What value should replace the question mark to make this a valid distribution (b) Find the probability that at least one group visits the hut in a given day

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

One question with parts ...
f.3.2
Hello I am having trouble on examples 8 and 9
Need help with parts C & D The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 191 Americans is administered the acupuncturists treatment and 25 report experiencing migraines.a. State Hypotheses to the scenario using the correct symbols. b. What is the sample proportion? (Round to 2 decimal places) ˆpp^= c. Suppose the P-value is calculated to be 0.0318What would your decision be for this test using α=α= 0.025? fail to reject the null accept the null reject the null d. Write a conclusion in terms of the acupuncturist's claim. Use the model provided by the instructor. Assume no errors were made.
..
3. A skydiver started his jump from the airplane. He fell 4.9 m in the 1st second, 14.7 m in the 2nd second, 24,5 m in the 3rd second. How far did he fall between the 7th and the 10th seconds?
Help
O a O b Question 10 (3 points) PP,
Part D and H is incorrect it wasn't 48.26.Part G isn't 275 but 125 is correct.I didn't get a answer for part i.
The name of your favorite team is an example of.... variable
Ex3) 3. 2/3 3. 3. メP。 3. 2. 9. メP 1x3) X-3