solve

Q: ) Find the standardized test statistic for u-P =0 381 (Round to three decimal places as needed)

A: n1 = 14n2 = 8 x1 =194x2 =187 s1 = 39s2 =44

Q: Refer to the following table.    First Event     Second Event A1   A2   A3   Total B1 5   8  ...

A: Given table , Probability = Number of favorable outcomes Total outcomes    

Q: 80 9th , 60 10th, 75 juniors, and 90 11th in the population for your study investigating choice of s...

A: Given that the number of 9th grade students = 80 the number of 10th grade students = 60 the number o...

Q: Suppose that a certain college class contains 55 students. Of these, 30 are seniors, 28 are psycholo...

A: It is an important part of statistics. It is widely used. 

Q: Use specific statistical tool so check that modules have strong impact on average 10 11 12 3 14 15 1...

A: Pre-module Score (X) Post-module Score (Y) D= X-Y (D-Dbar)^2 18 22 -4 4 21 25 -4 4 16 17 -1 1 ...

Q: Suppose that A, B are two independent events, with P(A) = .1 and P(B) = .2.Find P(A|B).

A:

Q: Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses,...

A: Given that, n1=15,n2=8 The type of test is two tailed test The degree of freedom is, df=(n1+n2-2)   ...

Q: Compute the critical value za/2 that corresponds to a 81% level of confidence. Click here to view th...

A: In this context, the level of confidence is 81%. Denote α as level of significance. α=1-0.81=0.19α2=...

Q: Construct a sample with at least two different values in the set of five measurements who’s mean is ...

A: According to the provided information, the mean should be 3 of five observations.  

Q: The weights of 9-ounce bags of a particular brand of potato chips can be modeled by a normal distrib...

A: Consider a random variable which represents the  weights of 9-ounce bags of a particular brand of po...

Q: Find the length of the leg x. Enter the exact value, not a decimal approximation.

A: Given, The triangle is right angle triangle. Base = 6 Hypotenious = 15     To find, Height = x = ?

Q: A researcher suspects that the actual prevalence of generalized anxiety among children and adolescen...

A:

Q: Tacoma's population in 2000 was about 200 thousand, and has been growing by about 9% each year. If t...

A: Initial population = 200 thousands Growth rate = 9% time span = 8 years (2018-2000)

Q: Compute the critical value z/2, that corresponds to a 82% level of confidence. Click here to view th...

A: Given that,82% confidence level

Q: In a large school, it was found that 69% of students are taking a math class, 75% of students are ta...

A:

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally...

A: We have given that, The test scores are normally distributed with mean of 0 and standard deviation o...

Q: Which of the three measurements, mean, median, or mode, is the most influenced by an outlier value t...

A: Outlier in a data set is the value which is much higher than or lower than almost all other values. ...

Q: Giving a test to a group of students, the grades and gender are summarized below   A B C Total ...

A: We have given that the group of students , the grades and gender. We want to find, the probability t...

Q: In a survey of 500 college graduates, 67% reported that they entered a profession closely related to...

A: Given that  In survey of 500 college graduates 67% reported a college major.  P = 0.67 (1-P) = (1-0....

Q: The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupunctur...

A: a).The hypothesis to be tested here is- H0:p=0.152H1:p<0.152 b). Here, X=31 n=260 Therefore the r...

Q: If A, B and arbitrary events then show that P(A U B U C)  = P(A) + P(B)+ P(C) – P(A∩B) – P(B∩C) – P(...

A: If A, B and arbitrary events then  P(A U B U C)  = P(A) + P(B)+ P(C) – P(A∩B) – P(B∩C) – P(C∩A) + P(...

Q: The following table lists the probability distribution of a discrete random variable x: x 0 ...

A: Solution: From the given information, the probability distribution of X is

Q: (in million peso) for e shown in the table be

A: Let us define the independent  (X) and dependent (Y) first. Let , X be year and it is treated as ind...

Q: Statistics Question

A: Given data,μ=1028σ=92P(X>1200)=?

Q: Suppose that a certain college class contains 36 students. Of these, 19 are freshmen, 23 are economi...

A: Solution: Let A be the number of student is a freshmen and B be the event that the students is a eco...

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 a...

A: We have given that the standard normal distribution with mean 0 and standard deviation 1. And also g...

Q: How would u solve this

A: Given data, n=2982 x=1608   Sample proportion p=x/n =1608/2982 =0.539   z-value at 90% Confidence is...

Q: For the following possible outcomes, give their associated X values. associated PIN value 1272 2100 ...

A: Let X be the number of non-zero digits in a randomly selected 4-digit PIN. All possible values of X:...

Q: Assume that adults have IQ scores that are normally distributed with a mean of 101.1 and a standard ...

A:

Q: Let the following simple random sample X1 X2, ,X11 following: 1. Binomial pmf. (11, ¾); 2. Uniform p...

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have ...

Q: A researcher suspects that the actual prevalence of generalized anxiety among children and adolescen...

A: The null hypothesis can be defined as the hypothesis of no difference or equality, while the alterna...

Q: Assume that adults have IQ scores that are normally distributed with a mean of µ= 100 and a standard...

A: Given information Population mean µ = 100 Standard deviation σ = 20 We have to find the probability ...

Q: Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 a...

A: Given that, Z score = 0.22Left tailed test

Q: 1. A recent survey of 50 workers for the starting monthly salary in PKR employed in the construction...

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have ...

Q: Please explain clearly all the steps and calculations. I want to learn it for the examination.

A:

Q: Calculate the sample standard deviation for this data set: 58, 60, 74. The formula for the sample st...

A: Given information- We have given the data set 58, 60, 74 We have to find the standard deviation usin...

Q: Use the t-distribution table to find the critical value(s) for the indicated alternative hypotheses,...

A: In this case, α=0.02,n1=15 and n2=8. It is also known that the population variances are equal. Df= n...

Q: A population of N = 5 scores has a variance of σ 2 = 24. If the scores were from a sample, what valu...

A:

Q: Good Afternoon   I have completed the requested questions on section 1 a on excel however I am havin...

A: y^= β0+β1x Regression equation

Q: The following are X values from a distribution that has a mean of 25 and a standard deviation of 3. ...

A: Given data,μ=25σ=3    

Q: Find the P-value for a left-tailed hypothesis test with a test statistic of z = - 1.05. Decide wheth...

A: Given that,Z score = -1.05Left tailed testLevel of significance, α = 0.10

Q: Maxera Corporation has designed a new video game controller. It took the company 52 minutes to produ...

A: given  the company 52 minutes to produce the first unit. the company uses a 75% learning rate for th...

Q: You are conducting a left-tailed test of a claim about a population mean when sigma is unknown with ...

A: Given, Sample size,n =37 degree of freedom =n-1=37-1=36 Population standard deviation(σ) is not know...

Q: Chapter VII – Probabilities and Business Decisions LESSON TITLE Probability Tree Probability of an...

A: 1) There are 30 contestants and 1 will be selected (assuming at random). Person L is one of the cont...

Q: Find the critical value(s) and rejection region(s) for the type of z-test with level of significance...

A: Given Data: Type of test=z Degree of freedom=0.04 Two tailed test

Q: A company produces steel rods. The lengths of the steel rods are normally distributed with a mean of...

A: Given Data: Let X represent the lengths of the steel rods   X~ Normal (257, 1.62) n=20   Therefore, ...

Q: Assume that when adults with smartphones are randomly​ selected, 52​% use them in meetings or classe...

A: p = 0.52 n = 10

Q: 2 independent  random variables a and  b are given with parameters (2,6) and (0,3)  Find Fa+b  Refer...

A: It is an important part of statistics. It is widely used. 

Q: Help with A and B

A: 3. Given: Total=500Number of heavy smokers=150Number of light or nonsmoker=350Number of prominent wr...

Q: The death rate per 100,000 for lung cancer is 7 among non-smokers and 71 among smokers. The death ra...

A: Given that, death rate per 100,000, For lung cancer: Smoker = 71 , Non-smoker = 7 For Coronary throm...

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.