11) complete the ANOVA table df 3 Source SS MS F. 56.50 283.30 AB Error Total 311.10 23 7989.30
Q: What sample size would be required for the width of a99% CI to be at most .05 irrespective of the…
A: The confidence level is 99%. Therefore, α = 0.01 and α/2=0.005. The margin of error is 0.05 Since…
Q: Suppose I want to sample the household incomes for EBR parish. Het's say I start with a simple…
A: Central limit theorem: If the population follows normal distribution or the sample size is large…
Q: Estimate the following statistical measures 1. Mean 2. Median 3. Mode
A: The summary of the data using T1-83 calculator is given by: Press STAT. Select 01:EDIT. Press…
Q: If there are 7 different treatments in an Independent Group ANOVA, and they are a total number of 35…
A: The correct option is C. 28
Q: At the 0.01 significance level, can we conclude that there is a difference in the mean percent of…
A: The test to be carried out is- H0:μs=μe vs H1:μs≠μe The following measures are found for the given…
Q: Suppose that researchers collected a simple random sample of 39 children who had been identified as…
A: As given, researchers collected a simple random sample of 39 children who had been identified as…
Q: Group 1. Mean= 24.08 Group 2. Mean= 26.5 STD Dev= 4.42…
A: Solution: From the given information, for group 2 the mean is 26.5, standard deviation is 5.2 and…
Q: It is known that 55% of customers who shop more than 2000 TL in a market shop in installments.…
A:
Q: The following are the random sample weights of 6 babies at Philippine General Hospital. 5.0 Ibs 6.6…
A: given data 5, 6.6, 4.6, 5.2, 5.4, 5.6 n= 6
Q: Assume that blood pressure readings are normally distributed with u = 124 and o = 9. A researcher…
A: Consider X be the random variable representing the blood pressure readings. X follows normal…
Q: Listed below are the systolic blood pressure measurements (in mm Hg) of a random sample of Americans…
A: The given data set is: 40 and older 175 169 182 146 144 90 92 103 95 105…
Q: Suppose you wish to find the average annu salary for school teachers in the United States. You…
A: Given data,Mean μ=53145sd σ=16451n=31Find 95% CI?
Q: Gasoline pumped from a supplier's pipeline is supposed to have an octane rating of 87.5. On 13…
A: A hypothesis which is tested for plausible rejection is called the Null Hypothesis (typically…
Q: A certain brand of canned sardines is advertised as having a net weight of 15 oz. If the net weights…
A: Given that Certain brand of canned sardines is advertised as having a net weight 15 oz Sample size…
Q: A governmental agency computed the proportion of violent crimes in the United States in a particular…
A: The sample size n is 560.
Q: A report by the Gallup Poll found that a woman visits her doctor, on average, at most 5.8 times each…
A:
Q: The marketing manager of a large multinational corporation is concerned that some salespersons…
A: From the given information we conduct chi squared test for variance.
Q: Use the given sample to construct a 95% conf estimate the population standard deviation o Bample…
A: s2= 72=49 The critical values for \alpha = 0.05α=0.05 and df = 19df=19 degrees of freedom are…
Q: A company claims that 90% of its deliveries arrive on time. You take a sample of 74 deliveries, of…
A: Given, The sample proportion is,
Q: 6. Calculate the sample size needed in order to estimate the true proportion of defective in a large…
A: Confidence interval are constructed by using z distribution.
Q: A governmental agency computed the proportion of violent crimes in the United States in a particular…
A: Null Hypothesis, H0 : The proportions of crime in various categories in California do not differ…
Q: The production of four machines in an enterprise is as follows. Since the data is normally…
A: There are 4 independent samples which are A, B, C and D. We have to test whether there is a…
Q: A random sample of residents from various income brackets were asked their opinion on tax reform for…
A: a) Null hypothesis (H0): There is no association between income and opinion on tax return for the…
Q: 3. Suppose that the inside diameter of bulb lamp manufactured by a company are normally distributed…
A: Reviewing information, X : Diameter of bulb lamp n=200 X~N(μ=0.502 , σ=0.005)
Q: Refer to the following ANOVA table and find the missing values. (Give your answers correct to two…
A: Given that Source df SS MS F Factor 4 Error 38 Total 25 162.8
Q: What is the statistical term for the following symbol? Csymbol
A: Given symbol = α
Q: A sample of size 40 provided a test statistict = -1.6. Use a = 0.10. The conclusion is:
A:
Q: Assume critical reading scores for a standardized test are distributed as N(580, 100). Complete…
A: Given that The test scores are normally distributed. Mean (μ) = 580 Standard deviation (σ) = 100 We…
Q: 1 24 23.5 20.2 25 19.6 24 18 28 19 24 25.1 23.7 26 16.2 25 22.3 23.6 22 a. The average length of…
A: a) H0:μ=23H1:μ<23 mean of the given sample = ∑xn = 450.720 = 22.535 standard deviation =…
Q: 30. In an ANOVA, the greater the Mean Squares Within, the higher the F ratio would be also. * True O…
A: To test the significance of the overall regression of the model. F ratio is computed.
Q: Consider the following two statistics: +X, X = X, +X,+ •…· +X, and ây = X, + X, + 2n +X,) . ... ...…
A: Answer: X¯ is Prefer since, X¯ is unbiased estimator of population mean and X^ is biased.
Q: The times required by three workers to perform an assembly-line task were recorded on five randomly…
A: Hypothesis: Null hypothesis: H0: There is no difference in the average average time needed for the…
Q: Low Middle High Total For 26 75…
A: Here we have given the income status of the country of Guyana which is (low, middle, high) And…
Q: HA is the distribution of sample means according to the alternative hypothesis. Shade in the area…
A: type 1 error is rejecting null hypothesis when it is true
Q: 3. In a study of the relatic a sample of 180 college of comparable age and Estimate the difference…
A: Estimation is an important concept in statistics.
Q: A government agency computed the proportion of U.S. residents who lived in each of four geographic…
A: Claim : The proportions of people living in the various regions changed between the current year and…
Q: Among 1815 randomly selected high school students surveyed by the Centers for Diseases Control, 300…
A: The sampling distribution of sample proportion is generated using the sample proportions of repeated…
Q: Mr Martin can drive to work along four different routes. The following are the number of minutes the…
A: State the hypotheses: Null hypothesis: H0:µ1 = µ2 = µ3 Alternative hypothesis: H0: Not all the…
Q: If the between-groups sum of squares (SS) is 2155.08, the within-groups SS is 785.06, and there are…
A: Compute the value of Mean square within. The value of Mean square within is obtained below: The…
Q: 1.) The population of earthquakes has a mean magnitude greater than 1.00 for a sample size of 50 and…
A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…
Q: Consider this only partly filled in a partly labeled ANOVA source table Between: 40 4 10 7.35…
A: Given : dfB = 4 dfW = 22
Q: 8) In a recent one-way ANOVA test, SSW was equal to 15,900 and the SSB was equal to 3,100.…
A: We have to identify true or false.
Q: Compute the z score in the following scenario: Raw score = 28 Mean = 20 SD = 2 The Z score is…
A: GivenRaw score(x)=28Mean(μ)=20standard deviation(σ)=2
Q: The following is an incomplete ANOVA table. Source of Variation Between groups df MS 2 12.5 Within…
A: Given Anova Table: The degrees of freedom are calculated as follows:
Q: It is claimed that the mean household size in the River Terrace neighbourhood is 3.5 persons. A…
A: Test is that whether the mean household size in the River Terrace neighbourhood is 3.5.
Q: Use a 0.05 significance level to test the claim that males and females have the same mean BM Male…
A: The claim is males and females both have the same BMI. The given data is, n1=80, x1=26.3,…
Q: The Substance Abuse and Mental Health Services Administration (SAMHSA, 2017) estimates that 10.9% of…
A: The value of p is 0.109.
Q: Listed below are brain volumes, in cm³, of a simple random sample of unrelated subjects. Does it…
A: Compute the average and standard deviation of the sample and compute the t-statistics to test…
Q: A governmental agency computed the proportion of violent crimes in the United States in a particular…
A: Given Information: Sample size (n) = 500 Significance level α=0.05 Category US proportion…
Solve it correctly please. I ll rate
Step by step
Solved in 2 steps with 2 images
- The National Center for Education Statistics reported that 47% of college students work to pay for tuition and living expenses. Assume that a sample of 450 college students was used in the study.The Education Ministry claims that the dropout rate for Form 6 students in theircountry is less than 20%. Last year, 18 students from a random sample of 100Form 6 students withdrew. At α = 0.05, is there enough evidence to support theministry’s claim?List the four assumptions for the two-way (or factorial) ANOVA.
- The U.S. Census Bureau reported that in 2015,the proportion of adult Americans age 25 and olderwho have a bachelor’s degree or higher is 0.325(“Educational Attainment in the United States:2015,” census.gov, retrieved January 22, 2017).Consider the population of all adult Americans age25 and over in 2015 and define 户to the proportionof people in a random sample from this populationwho have a bachelor’s degree or higher.a. Would 卢based on a random sample of only 10people from this population have approximatelya normal distribution? Explain why or why not.b. What 征e the mean value and standard deviation of户based on a random sample of size 400?c. Suppose that the sample size is n = 200 ratherthan n = 400. Does the change in sample sizeaffect the mean and standard deviation of thesampling distribution of 卢？ If so, what are thenew values for the mean and standard deviation?If not, explain why not.Results from the National Health and Nutrition Examination Survey (NHANES) conducted thirty years ago revealed that out of 378 randomly selected adults in the United States 57 were considered to be obese. In this year’s National Health and Nutrition Examination Survey, out of 426randomly selected adults in the United States 135 were considered to be obese. Based on these results, can one conclude, at the 0.01 level of significance, that the percentage of adults in the United States that are obese is considerably higher now than it was thirty years ago?According to the February 2008 Federal Trade Commission report on consumerfraud and identity theft, 23% of all complaints in 2007 were for identity theft. Inthat year, Arkansas had 1,601 complaints of identity theft out of 3,482 consumercomplaints ("Consumer fraud and," 2008). Does this data provide enoughevidence to show that Arkansas had a higher proportion of identity theft than23%? Test at the 5% level.
- A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening night midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 of them attended the midnight showing.At a 1% level of significance, an appropriate conclusion is:There is insufficient evidence to conclude that the percent of EVC students who attended the midnight showing of Harry Potter is less than 20%.Suppose that random samples of US workers from 2 major cities were collected, and the way they commute to work was documented. The results of the study are below.Explain how the ANOVA technique avoids the problem of the inflated probability of making Type I error that would arise using the alternative method of comparing groups two at a time using the t test for independent groups.
- 4. A barangay official claims that at least 95% of theresidents in his area have mobile phones. To test this claim, a researcherrandomly selected a sample of 150 residents and found that 145 of them do have mobile phones. At 1% level of significance, what can you conclude?Identify BOTH the populationand the samplefor thesituation below.A survey of 21pharmacists from Philadelphiafound that 87% of them are vaccinatedAre there less children diagnosed with Autism Spectrum Disorder (ASD) in states that have larger urban areas over states that are mostly rural? Assume data were collected from a fairly urban state and they found 167 eight-year olds diagnosed with ASD out of 18922 eight-year olds evaluated. Assume data were then collected for a fairly rural state and they found 68 eight-year olds diagnosed with ASD out of 2989 eight-year olds evaluated. Is there enough evidence to show that the proportion of children diagnosed with ASD in the fairly urban state is lower than the proportion in the fairly rural state? Test at the 3% level and Compute a 94% confidence interval for the difference in proportions. (round to 3 decimal points)
