10. You are in charge of assessing different training methods for effectivness. You have data on 4 methods: Method 1 (X = 87, n = 12), Method 2 (X = 92, n = 14), Method 3 (X = 88, n = 15), and Method 4 (X = 75, n= 11). Test for differences among these means, assuming SSB = 64.81 and SST = 399.45. %3D
Q: If a card is randomly selected, what is the probability of drawing a(n) 2 of one suit? If a card is ...
A: Probability is the branch of mathematics concerning numerical descriptions of how likely an event is...
Q: You are given the following data of an engineering experiment: a) Construct a frequency Table in whi...
A: Mean is the average of all observations. The mode is the maximum time's repeated observation. Median...
Q: I would only need help with e and f
A: e) The two formulas for sum of squares is given below: SS=∑fx-μ2orSS=∑fx2-∑fx2N The value of x¯ is o...
Q: The academic board of Governors of a University to a sample of 60 lecturers. The sample was divided ...
A: Note: Since you have posted a question with multiple subparts, we will solve the first three subpart...
Q: Eye Mistress Glasses is the leading eye-glass manufacturer in Dallas. Customers arrive to the check-...
A: Given : Arrival rate = λ = 40 customer / hr Service rate = μ = 45 customer/ hr ρ = Utilization ...
Q: Simple regression was employed to establish the effects of childhood exposure to lead. The effective...
A: GivenThe data of estimated slope and standard error for all variables are given as shown belowThe t ...
Q: Question 30 please
A: Probability: Number of elements in particular eventTotal number of element in sample space Sample sp...
Q: The question is in the attachment
A: Let X be the random variable such that the dividend yield of Australian bank stocks. x̅: Sample mean...
Q: Do question 2
A: From the provided information, x 1 2 3 4 5 Probability 0.19 0.25 0.31 0.20...
Q: Find 94th percentile, P94, from the following data 170 210 220 230 320 360 370 390 430 440 4...
A: Arrange the given data in an ascending order. 170 210 220 230 320 360 370 390 430 440 470 540...
Q: Five hundred children participated in a field demonstration. Their heights averaged 110cm with a sta...
A: Let assume X be a continuous random variable of heights of five hundred children participated in a f...
Q: Using the data below which are the numbers of kilos of newspaper contributed by one section of the n...
A: The given data is, 25, 64, 15, 42, 64, 30, 30, 12, 45, 63, 45, 25, 70, 48, 82, 16, 17, 42, 33, 75, ...
Q: A marketing manager plans to market and sell a certain product to improve companies profit. Whi...
A: (1) Product A: Mean(μ1) = 100,000 Standard deviation(σ1) = 2000 Product B: Mean(μ2) = 100,000 Stan...
Q: Can someone help me with this question? thanks
A: Given seventy-five percent of all customers at a certain store want the overall version i.e. probabi...
Q: In a survey of 2299 adults in a recent year, 1305 say they have made a New Year's resolution. Constr...
A: Given Information: Sample size n=2299 adults Out of which x=1305 said they have made a New Year's re...
Q: 5. A study is planned to assess the effect of a new surgical intervention for gallbladder disease. O...
A: Given that 100 patients with gallbladder disease will be randomly assigned to receive either the new...
Q: 3. The mean waiting time at the drive-through of a fast-food restaurant from the time food is ordere...
A: Given sample data, 109,67,58,76,65,80,96,86,71,72 a) Sample mean: x¯=∑xn=109+67+58+76+65+80+96+86+71...
Q: The results of Principal Component Analysis are less reliable if the scale of measurement of the var...
A: Introduction: Principal Component Analysis is a dimensionality reduction procedure, which attempts t...
Q: Comment on the statement given below:“Statistics is concerned with understanding the real world thro...
A: The given statement is right in the sense that by using the techniques of the statistics, we are abl...
Q: The standard deviation of the sample-mean's estimate of a population mean.
A: Let, X1,X2,....,Xn be the samples from a population with mean µ and standard deviation σ So, the Sa...
Q: You are applying for a job at two companies. Company A offers starting salaries with u = $34,000 and...
A: The z score formula is: The z-scores that are equal to 2 or greater than 2 are considered an unusua...
Q: Assume that X is a hypergeometric random variable with N= 28, S=5, and n= 5. Calculate the following...
A: Answers: (a) P(X=1) = 0.4505 (b) P(X=5) = 0.0000102
Q: Strictly homework not quiz, the first picture is what I’m supposed to be basing the answers of the q...
A: Bivariate data on x and y are given as follows x y 25.4 23.1 16 53.3 14.5 24.6 5 61.5 ...
Q: 2. A factory manager collected a sample of ten (10) packets of 3-in-1 coffee andthe weights (in gram...
A:
Q: What are the Class 1 error rate and the Class 0 error rate on the test data?
A: Class 1 error rate are false positives on test data Class 0 error rate are false negative on test da...
Q: Below is a histogram representing the test scores from Mrs. Smith's 3rd period Algebra class. Which ...
A: From the frequency of the provided histogram, it can be assumed that there are 4 values between (80-...
Q: 2-63. A lot contains 15 castings from a local supplier and 25 castings from a supplier in the next s...
A: Note: "Since you have posted a question with multiple sub-parts, we will solve first three sub-parts...
Q: In a survey of a group of men, the heights in the 20-29 age group were normally distributed, with a ...
A: Given, Mean, mu= 69.7 Standard deviation, Sigma= 2 We know, Z score= (X-mu)/sigam
Q: What proportion of the total number of ratings rec Customer Satisfaction Survey Monthly Regional Rep...
A: Solution: The given table of data is
Q: In a idealized sampling distribution of the mean estimator for a given variable, what is the proport...
A: According to Central Limit theorem the sampling distribution of mean, follows normal distribution of...
Q: A certain standardized test's math scores have a bell-shaped distribution with a mean of 530 and a s...
A: Given: μ=530σ=119 a) The percentage standardized test scores is between 173 and 887 is obtained aas ...
Q: You roll a six sided fair die. if you roll a 1, you win 26$ if you roll a 2, you win 17$ If you roll...
A: The probability of getting 1,2,3,4,5,6 on a dice is as follows:
Q: According to the records of an electric company serving the Boston area, the mean electric consumpti...
A: Given mean, μ=1650 and σ=320 By using a standard normal, Z=x-μσ ~ N(0,1) P1838<X<1940=P1838-16...
Q: If you know the names of the remaining nine students in the spelling bee, what is the probability of...
A: We have to find probability for given condition
Q: 12. BOWLING EQUIPMENT The Bowlers Pro-Shop determines that operating expenses are 23% of selling pri...
A: (a) The selling price is equal to sum of cost and markup. To find the value of markup percentage, u...
Q: Do question 2
A: Given data is appropriate for measures of central tendency. Measures of central tendency help you f...
Q: A food manufacturer is analyzing a sample of 500 corn kernels for the presence of a toxin. In this s...
A: In the given case, the total sample size (n) is 500. Assuming X to represent the number of kernels o...
Q: You are given 6 data points (xi; yi) below, where i = 1,..., 6 that are observed from a model: y = a...
A: Given information: Given data represents the values of the variables x and y. The data is as given b...
Q: In a certain shipment of 12 phones, 5 are defective. 6 of the phones are selected at random without ...
A:
Q: Solve the following linear program graphically:Maximize P = 4X1 + 2X2Subject to X1 + 2X2 < 6 ----...
A: Linear programming: lt is used for obtaining the most optimal solution for any complex problem. The ...
Q: A random sample of 500 registered voters in Phoenix is asked if they favor the use of oxygenated fue...
A: The probability of rejecting the null hypothesis, when it is not true is called the power of the tes...
Q: Most engaged couples expect or at least hope that they will have high levels of marital satisfaction...
A: Given: n1=39x¯1=51.1s1=9n2=31x¯2=45.2s2=12α= 0.05 The test hypothesis are, H0: μcouples living above...
Q: 3. The 4th decile for the given data is: f 1 1 9 26 3 59 4 72 5 52 29 7 7 8 1 A. 5 С. 4 В. 3 D. 7
A:
Q: Which type of systematic review is used for integrating quantitative findings? A. Metasynthesis B...
A: Which type of systematic review is used for integrating quantitative findings? A. Metasynthesis B. M...
Q: Part D, E, & F
A: The data can be sorted in ascending order as: 28, 29, 30,39, 41, 48, 48, 49, 51, 62
Q: Answer the following question
A: a) The value for b1 is given by b1 = t(b1) x SE(b1) b1 = 7.5016 x 5.5054 b1 = 41.2993 This shows ...
Q: Question 2 Suppose that the answer to the previous Question were such that the Relative Frequency of...
A: The relative frequency of a class is calculated as-Relative Frequency=FrequencyTotal sample size
Q: A researcher wants to investigate claims that a new plant compound is effective in curbing appetite....
A: Given: x¯1=843s1=111x¯2=946s2=73n1=n2=11α=0.01 The required assumptions for the independent-measures...
Q: Solve the following linear program graphically:Maximize P = 4X1 + 6X2Subject to X1+ X2 < 6 ------...
A: Given: Maximize P=4X1+6X2Subject to X1+X2≤6 .........1 3X1+2X2≤15 ..........
Q: Please help me
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- My original question has already been answered, however, in Step 2 of the Expert Answer I would like clarification on how to compute the critical values manually - without the use of EXCEL, as mentioned in the respnse, so I need to know what formula do I use? Question: Prior to assessment of the outcome, the researchers did a manipulation check. Members of Groups 1 and 2 rated the attractiveness (on a 1 to 9 scale, with 9 being the most attractive) of the person in the photo. They reported that for the attractive photo, M = 7.53; for the unattractive photo, M = 3.20, F(1, 108) = 184.29. Was this difference statistically significant (using a = .05)? Expert Answer Step 1 It is given that the F-test statistic is 184.29, the degrees of freedom for first and second groups are 1 and 108, and the level of significance is 0.05. State the appropriate hypothesis: Null hypothesis: H0 : There is no difference between two groups. Alternative hypothesis: Ha : There is a difference between…Outline the components of the classical experimental design. How is it different from a one-group pre-test post-test design?Normal and special cause variation are managed very differently. How would you know which type you are responding to without the process limits?
- 1) When the effect of one variable depends on the level of other variable , that is call the main effect True or false 2) When an interaction term is statistically significant , you must be cautious in interoreting the main effects . True or false give above answer and explain ?Suppose we have separately analyzed the effects of 10 SNPs comparing people with type I diabetes vs. controls.The p-values from these separate analyses are given in Table 12.44 12.72 Use the Bonferroni method to correct for multiple comparisons. Which SNPs show statistically significant effects?12.73 Use the FDR method to correct for multiple comparisons using an FDR = .05. Which SNPs show statistically significant effects? How do the results compare with those in Problem 12.72?A company has two chemist, Mr. Morris and Mr. Logan to produce their drinks. Mr. John, their boss, is not pleased with Mr. Logan’s attitude to work, so he is contemplating firing Mr. Logan andkeeping Mr. Morris only to perform this job. The problem, however, is that Mr. Logan seems to produce a higher quality drink whenever he oversees production when compared to Mr. Morris. Before making a final decision, Mr. John decided to collect data measuring the quality of different batches ofdrinks produced by Mr. Morris and Mr. Logan to make a better-informeddecision. The results, measured on a quality scale, are listed below: Name Average Standard Deviation Sample Size Mr. Logan 98 1 8 Mr. Morris 94 4 10 a) Based on this data above, advise Mr. John whether Mr. Logan isbetter at making the signature sauce than Mr. Morris by usinghypothesis testing – use the critical value approach with a level ofsignificance at 5%.
- A new chemotherapy drug is released to treat leukemia and researchers suspect thst the drug may have fewer side effects than the most commonly used drug to treat leukemia. The two drugs have equivalent efficacy. In order to determine if a larger study should be conducted to look into the prevalence of side effects for the two drugs, set up a Mann-Whitney U test at the alpha equals .05 level and interpret its results. Number of reported side effects Old drug 0 1 3 3 5 New drug 0 0 1 2 4a. Assuming for the moment that all coefficients are significant, please interpret the coefficients of the four independent variables in the BIG b. To determine which of the two models above is statistically superior at the .10 level, please calculate the appropriate F‐statistic.Two different formulations of an oxygenated motor fuel are being tested to study their roadoctane numbers. The variance of road octane number for formulation 1 is σ1 2 = 1.5, and for formulation, 2 it is σ2 2 = 1.2 . Two random samples of size n1 = 15 and n2 = 20 are tested, andthe mean road octane numbers observed are x̅1 = 89.6 and x̅2 = 92.5. Assume normality.(a) If formulation 2 produces a higher road octane number than formulation 1, themanufacturer would like to detect it. Formulate and test an appropriate hypothesis using α =0.05.
- These early, simple methods gave pediatricians and parents quick ways to estimate a child’s adult height, but they are not terribly accurate. A new statistical model was eventually developed based on age, weight, and parental height data from a large, longitudinal study. This method, called the Khamis-Roche method, can be applied only to healthy Caucasian children over the age of 4. To use this method, coefficients must be obtained from a table, multiplied by the corresponding measurement, and then added together with the constant to generate a formula to predict a child’s height. The partial tables that follow give the coefficients for girls aged 4 to 7. Write a formula for this method to predict the height of a 5-year-old girl, clearly defining any variables you use. Let C is child’s current height, W is the child’s current weight, and A is the average parent height. Use your formula to predict the adult height of a 5-year-old girl, if her current height is 3’6’’ and her weight is…. A new chemotherapy drug is released to treat leukemia and researchers suspect that the drug may have fewer side effects than the most commonly used drug to treat leukemia. The two drugs have equivalent efficacy. In order to determine if a larger study should be conducted to look into the prevalence of side effects for the two drugs, set up a Mann-Whitney U test at the alpha equals .05 level and interpret its results. Number of Reported Side-Effects Old Drug 0 1 3 3 5 New Drug 0 0 1 2 4 Old Drug New Drug Total Sample (Ordered Smallest to Largest) Ranks Old Drug New Drug Old Drug New Drug 0 0 0 0 2 2 1 0 1 0 4.5 2 3 1 3 1 7.5 4.5 3 2 3 2 7.5 6 5 4 5 4 10 9 Total R1=31.5 R2=23.5 A) We…A new chemotherapy drug is released to treat leukemia and researchers suspect that the drug may have fewer side effects than the most commonly used drug to treat leukemia. The two drugs have equivalent efficacy. In order to determine if a larger study should be conducted to look into the prevalence of side effects for the two drugs, set up a Mann-Whitney U test at the alpha equals .05 level and interpret its results. Number of Reported Side-Effects Old Drug 0 1 3 3 5 New Drug 0 0 1 2 4 Old Drug New Drug Total Sample (Ordered Smallest to Largest) Ranks Old Drug New Drug Old Drug New Drug A) We fail to reject H0, which…