The following data represents the ages of students in a math class: 63, 67, 63, 64, 69, 74, 62 Find the standard deviation of the data set. Round your answer to two decimal places. s=(x-x)2n-1 5.13 Group of answer choices 4.05 4.32 6.28
Q: Question 6: The joint pdf of two random variables, X and Y, is 3 f(x,y) = x + y² a) Find the P(X…
A:
Q: The average production cost for major movies is 67 million dollars and the standard deviation is 19…
A:
Q: In this case, p-value is greater. So null hypothesis should not be rejected, correct?
A: Since we know that when p-value < α we reject the null hypothesis and When p-value > α we fail…
Q: Determine whether there is Cordocet winner or loser in the given election? Alyssa Bea Kate Voters 1…
A: Given is a table to determine to Cordocet winner.
Q: A researcher claims that 45% of U.S. adults think that the IRS is not aggressiv who cheat on their…
A: Given that Population proportion p=45%= 0.45
Q: QUESTION 13 You are interested in seeing whether emotions impact decision making. You have three…
A: The question is about ANOVA Given : Sum of sq. between samples ( SSG )= 1.6 Sum of sq. within…
Q: Using the scatter plot shown above, which one is the more appropriate statistical test, the Pearson…
A: Correlation is used to find the relationship between two variables.Spearman's rank correlation…
Q: Find the standard error. Answer 2.8 O 16.6 O 1.96 O 0.4733 O 15.67<μ <17.53
A: Standard error=Standard deviation/sqrt(sample size)
Q: a certain barangay. LGU distributes "ayuda" benefits to each family with a mean of 3,200 pesos per…
A: Given that. X~N( μ , ?) μ=3200 , ?=850 , n=32 Z-score =( x - μ )/?
Q: e. What is the predicted average SBP of an infant born with birth weight 8lbs (1280z) measured at 3…
A: Given data: x1 x2 y 135 3 89 120 4 90 100 3 83 105 2 77 130 4 92 125 5 98 125 2 82…
Q: need help solving these two ques
A: Given that ? = 0.02
Q: 1) Compute and interpret the sample correlation coefficient for the five observations taken for two…
A:
Q: Consumer Reports has decided to test the efficacy of 4 different ant sprays. They take ran 8 trials…
A: Given SStotal =30541.88 SSwithin =12010.5
Q: Using the t-test formula, what is value?
A:
Q: (1) Horror Films: A random sample of 209 US adults found that 45 of the 107 females in the sample…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: In a survey funded by the University of Washington School of Medicine, 1,071 of 1,700 adult Seattle…
A: Given X=1071 n=1700
Q: I am confused about step 3, especially how the variance for the joint portfolio was obtained. Why…
A: as we know that the variance for the linear combination of two random variables x and y is given by…
Q: Quantitative Methods 1 QUESTION 5b - problem-type question requiring detailed written answers. A…
A: Given that: Success probability, p=0.65 Sample size, n=300
Q: A researcher is interested in finding a 90% confidence interval for the mean number minutes students…
A: Given that, a) To compute the confidence interval use a t-distribution Reason: Since the population…
Q: The weekly revenue for a product is given by R(x)=211.2x-0.042x², and the weekly cost is C(x) =…
A: Given data is as follows: Revenue, R(x)=211.2x-0.042x^2 Cost, C(x)= 11000+105.6x-0.084x^2+0.00002x^3…
Q: Problem B: Suppose that Cities A, B and C have the following observed number of COVID19 cases.…
A: Chi square test is the type of parametric test. It use the categorical variable to test the…
Q: How do I go about these two questions followin this asnwer above: B) Ater removing the point with…
A: b) After removing the cordinate (2, 9) we make the following table for the calculation of regression…
Q: An online marketplace retailer performed a study that compared the average domestic shipping time of…
A: The given sample correlation coefficient is -0.161.
Q: 1) In a study of the association between exposure to asbestos and risk of mesothelioma, 200 cases…
A: Precision is generally used to how close the measured values related to each other when the study is…
Q: A study on the efficient utilization of operating rooms was conducted. Results showed that induction…
A:
Q: If a match was selected at random, what is the probability that: The weather was good or the…
A: It is given that Total = 75 n(good) = 33, n(win) = 26, n(good and win) = 17
Q: The best point estimator of the population mean is the sample mode. Answer Choose a match False True
A: The best point estimator of the population mean is "sample mean".
Q: Find the minimum sample size n needed to estimate u for the given values of c, o, and E. c=0.95,…
A:
Q: R3.35. Age and party 2008 The Pew Research Center collected data from national exits polls conducted…
A: The Pew research center collected data from national exit polls conducted by NBC news after the 2008…
Q: Problem A: Three top-of-the line mid-sized automobiles have been test-driven and compared on a…
A: The question is about ANOVA Given : To find : Test whether the mean gasoline mileage performance…
Q: In a one-way analysis of variance with three groups, the research hypothesis is: Ο μ1 > μ2 and μ3.…
A: Here we have given the multiple choice question about the One way Analysis of Variance i.e. ANOVA.…
Q: A study was conducted to measure the e ectiveness of hypnotism in reducing pain. The measurements…
A: From given data we have : Before After diff. di 9.3 6.5 2.8 6.8 2.1 4.7 6.9 7.4…
Q: Complete the missing information for this regression model. Note: N=26N=26. (Except for P-values,…
A: From the given information, Y^=26.7592.382+0.818(0.547)X1-2.999(1.674)X2+1(0.734)X3
Q: Thanks to an initiative to recruit top students, an administrator at a college claims that this…
A: given data,claim: μ>110n=11x¯=112s=15α=0.05one- tailed test
Q: 12. When the alternative hypothesis is that the parameter is at least 100, test is done. e.g.H₁:…
A: Given Hypothesis Population mean μ ≥100
Q: You purchase a mutual fund add an offer price of $15.79 per share. If the net asset value is $15.26…
A: Here we have to find the sale charge percent
Q: earcher wishes to estimate, with 95% confidence, the population proportion of adults who think…
A: Given that Margin of error =E =5%=0.05 95% confidence level.
Q: QUESTION 8 You are interested in seeing whether emotions impact decision making. You have three…
A: Question 8: The sample size for happy group is 5, sample size for sad group is 5 and sample size for…
Q: Which minimum sample size is recommended for a z-test for the difference in means? a) 5 b) 10 c)…
A: Which minimum sample size is recommended for a z-test for the difference in means? a) 5 b) 10 c)…
Q: 12. What is the probability that Buffalo State smokers spend between $20 and $21? [Answer: A) 0.57%…
A: It is given that Mean, μ = 20 Standard deviation, σ = 5 Sample size, n = 49 Z-Score, Z = ( X - μ…
Q: City officials in Sacramento conducted a survey asking voters how they plan to vote in the upcoming…
A: Given X=375 n=1250
Q: A publisher wants to estimate the mean length of time (in minutes) all adults spend reading…
A: Data given 12,7,8,12,7,8,11,6,9,7,7,9,9,10,8
Q: did you use a table to get -1.281 . Im getting a different number can you show detail steps
A: To get value -1.281 We will use Excel function at 10%(0.10)
Q: Determining whether two samples are independent or paired a... A purchasing manager for a large…
A: Please like my answer..... It supports me a lot..?
Q: Men's heights are normally distributed with a mean of 69.0 inches and a standard deviation of 2.8…
A: Solution-: For men: Given: μ=69,σ=2.8 Let, X= The men's heights ∴X→ N(μ=69,σ2=2.82) and For men:…
Q: 8.60 A random sample of 5 bank presidents indicated annual salaries of $395,000, $521,000, $483,000,…
A: Given n=5 Data:395000,521000,483000,479000,510000.
Q: 51.25 2.80 01.064 0.21 2.9792
A: Given n=25 standard deviations σ=5.32
Q: Click here to view the critical values of the Pearson correlation coefficient, r. The regression…
A: From the above data X is the Magnitude Y is Earthquake
Q: For a particular regression analysis, SST = 149.4370 and SSR = 147.6799. a. Obtain the coefficient…
A: Given SST=149.4370 SSR=147.6799.
Q: The average number of mosquitos in a stagnant pond is 80 per square meter with a standard deviation…
A: Given that, x be the number of mosquitos ina stagnant has a normal distribution with mean =80 per…
Step by step
Solved in 2 steps