Find the class width

Q: Match each scatterplot shown below with one of the four specifi correlations. Do 88 of a. 0.74 b.…

A: Correlation: If the scatter plot shows a pattern of upward or downward straight line, it means that…

Q: hompson Photo Works purchased several new, highly sophisticated processing machines. The production…

A:

Q: Statement of the null hypothesis Statement of the alternative hypothesis Degrees of freedom is…

A: In given problem, we are interested in finding number of defectives produced by machinist and…

Q: When working on a normal distribution other than the standard normal distribution you need to either…

A: Suppose a random variable X, defines the IQ score.

Q: A building contractor is preparing a bid on a new construction project. Two other contractors will…

A: Given information: Contractor A: Uniform distribution between $510,000 and $710,000. Contractor B:…

Q: 7.62 The amount of time a bank teller spends with each customer has a population mean = 3.10 minutes…

A: GivenMean(μ)=3.10standard deviation(σ)=0.40sample size(n)=16

Q: a- using the expected value method, b- using the standard deviation c-using Coefficient of variation…

A: a) Alternative A E[X]=0.2*30,000+0.5*25,000+0.3*20,000 =24,500 Alternative B…

Q: In a digital communication channel, assume that the number of bits received in erro can be modelled…

A: Solution:

Q: Consider the following data: 5,−5,5,−5,−5,14,55,−5,5,−5,−5,14,5 Copy Data Step 1 of 3 :…

A: To find: value of the sample variance.

Q: in a sample of n=10 selected from a left​-skewed ​population, X=63 and S=24​, would you use the t…

A:

Q: You are a member of a research team interested in looking at the association between numberof years…

A: Given that You are a member of a research team interested in looking at the association between…

Q: calculate the regression line (each value to at least two decimal places) y =  ___ x + ____ x y 1…

A:

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 100…

A:

Q: How did you get 0.668 for the answer to part A of the question and not the x-table of 1.5 which is…

A:

Q: Question 15 20.364816 r=0.604 Y A regression was run to determine if there is a relationship between…

A:

Q: What determines the probability that a person having the disease will yield a

A: # Probability that a person having the disease will yield a positive test ?? a): The prevalence  b):…

Q: The​ p-value is

A: It is given that the one-sample left-tailed or lower tail hypothesis test. ZSTAT, z = -2.23

Q: You are the manager of a restaurant for a​ fast-food franchise. Last​ month, the mean waiting time…

A: Given datan=81x¯=3.59s=0.9μ=3.7

Q: a) Compute the population mean of the patients' age. b) Construct a table for a sample means of size…

A: 38,48,50,84 a) Mean=Sum of observations/No: of observations =38+48+50+84/4 =220/4 =55

Q: Over the past several months, an adult patient has been treated for tetany (severe muscle spasms).…

A: Given data is9.3,8.8,10.1,8.5,9.4,9.8,10.0,9.9,11.2,12.1sample size(n)=10

Q: Let X and Y be two random variables and let r, s, t, and u be real numbers. a. Show that Cov(X+s,…

A: Given: X and Y be two random variables and let r, s, t, and u be real numbers.  We have to show that…

Q: A uniform distribution is a continuous probability distribution where every value of X on an…

A: From the provided information, X is random variable with a uniform distribution for 2 < X <…

Q: Chi-square distribution Suppose that χ2 follows a chi-square distribution with 19 degrees of…

A: Given: Degrees of freedom (df): df=19

Q: The following output models the factors that influence the price of a particular good. Calculate the…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: The​ p-value is enter your response here. ​(Round to four decimal places as​ needed.)

A: It is given that the one-tailed hypothesis test for upper-tail or right-tailed test. ZSTAT = z =…

Q: In this exercise, a two-way table is shown for two groups, 1 and 2, and two possible outcomes, A and…

A:

Q: 5. Identify the measure of central tendency that is most appropriate to determine the following:…

A: The following are the solution of the above question.

Q: A bank has recently acquired a new branch and thus has customers in this new territory. They are…

A: Given that Area A - n1 =200,x1 =20 Area B - n2 =200,x2 =12 Alpha=0.10

Q: Does this statement accurately represent Type I error? Rejecting the Ho after a test statistic…

A: Given that P value = 0.085 ,α=0.05.

Q: Determine whether to reject Ho. (b) Since the test statistic, z=2.30, (Choose one) ▼ in the critical…

A: Given: Null and alternate hypotheses H0 : µ = 18H1: µ ≠ 18 At 10%  Zcritical =  ( -1.645 and  1.645…

Q: In 1977, men who were under 50 years old had a mean weight of 175 pounds, with a standard deviation…

A: Given: mean(μ)=175standard deviation(σ)=18

Q: Let the joint density of random variables x and y be given by the following: fx,y(x,y) = 0.158(x +…

A: As per the guidelines, solving first question when multiple questions are posted. Kindly re-post the…

Q: b. What is the probability that exactly 31 intitutions in this study offer distance learning…

A: Probability, p=94/100=0.94 Sample size, n=35 a) X~B35,0.94 Pdf of binomial distribution, P(X=x)=nCx…

Q: The average cost of tuition plus room and board for a small private liberal arts college is reported…

A: Note: Hey there! Thank you for posting the question. Since your question has more than one question,…

Q: A box contains 10 Red balls and 5 Blue balls. A person has been assigned to transfer 4 balls at…

A: Probability

Q: 2. Write the complex number 3 + 5i 5 - 3i in the form a + bi.

A:

Q: Noah wants to advertise how many chocolate chips are in each Big Chip cookie at his bakery. He…

A: Suppose µ is the population average number of chocolate chips per cookie for Big Chip cookies.

Q: Suppose that 48% of all voters prefer the Democratic candidate. Let X be the number of people who…

A: Givenp=0.48sample size(n)=20

Q: Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval…

A: Given data n=300 x=189 confidence interval is 80%

Q: Determine the relative frequency for the third class as a simplified fraction.

A: It is given that the frequency table representing the distribution of hours students spend on…

Q: What is i? 2. What is the upper limit of 65-69? 3. Compute the mean weight of college students. 4.…

A: According to guidelines we solve first three subparts when given multiple subparts.

Q: 01/A/Find the median, lower quartile, 8 decile, and the coefficient of skewness based on Karl…

A: Solution-: We have following table: Marks frequency Below 10 2 Below 20 8 Below 30 15…

Q: A random variable is defined as “ the number of heads when a coin tossed”, (a)twice (b)three times…

A:

Q: Assume that Fermi-Dirac statistics can be approximated t Boltzmann statistics, P(E)= exp[-] where…

A: Given: P(E)=exp-E-EFkT Vo=kTqlnnnnP

Q: A shopkeeper takes 12 bags of coins to the bank. The bags contain the following numbers of coins:…

A:

Q: If I tell you that you scored at the 85th percentile know:

A: Here use definition of percentile  Percentile represents the how much data below or at that value…

Q: −13,−13,−13,0,0,0,11−13,−13,−13,0,0,0,11 Copy Data Step 1 of 3 :   Calculate the value of the…

A: Given data: −13, −13, −13, 0, 0, 0, 11, −13, −13, −13, 0, 0, 0, 11

Q: A 2009 study to investigate the dominant paws in cats was described in Animal Behaviour (Volume 78,…

A: It is given that number of cats studied n is 42 and the number of cats left-pawed (x) is 20.

Q: The mean cost of the ingredients of a chicken parmesan meal bought at the grocery store is $15.…

A: Solution:

Q: An IQ test is designed so that the mean is 100 and the standard deviation is 17 for the population…

A: Given dataσ=17M.E=3confidence interval=90%