Age of residents in a neighbourhood 26 45 27 50 40 52 12 28 48 52 14 20 32 9 36 10 36 51 42 1 30 21 40 37 13 35 57 47 42 53   Create a box-and-whisker plot for the data. What is the sample standard deviation of the data set? Use IQR and the standard deviation to determine if there are any outliers in the data set. I am unsure of my answer for the last question as I got IQR= 26 and - 18 and 85 when I inputed the numbers for it

Q: Dr. Caldwell is a forensic psychologist who works with child victims of abuse. She began to wonder…

A: n=10standard deviation=BAI-C Scores = 55 ,57, 50, 62, 66, 48, 71, 60, 70, 52.

Q: The following regression is fitted using variables identified that could be related to student…

A: From the given information,the variable ACCEPT denotes the percentage of applicants that were…

Q: The following regression is fitted using variables identified that could be related to student…

A: The objective of the question is to understand the regression analysis output and interpret the…

Q: Pinecrest Academy conducted a health and fitness survey on a random sample of its 36 high school…

A: By the given information, we haveNumber of the high school senior  who have resting heart rate of…

Q: n Internet poll asked 4272 U.S. adults about their use of smart watches and fitness trackers. A…

A: Given:

Q: Test the claim that the proportion of people who own cats is larger than 90% at the 0.005…

A: Hypothesiszed population proportion is p0 =0.90Sample proportion  p^=0.91Sample size n=…

Q: If the rejection region for our test is t>0.231 and t<-0.231 and our observed value is 0.01, what is…

A: The rejection region for test is t&gt;0.231 and t&lt;-0.231Observed value=0.01

Q: Does the age at which a child begins to talk predict later score on a test of mental ability? A…

A: Let X denote the age of young children: Age(in months) and Y: Gesell Adaptive score.The sample size…

Q: You wish to test the following claim (H) at a significance level of α = 0.001. Ho:μ = 88.1 Η„: μ #…

A: Given information:

Q: Dr. Caldwell was also interested in learning whether the anxiety of child victims is related to…

A: Let  x = Testified  and y= Did not testify n= 10 sample size of testify m= 10 sample size of did not…

Q: sider a mixture of two Gaussian distributions (illustrated in Fi [8.4 0.4.N ([12]. [1]) +0,6N (8),…

A:

Q: Which of the following is a correct description of a p-value? Mark all that apply. The conditional…

A: The p-value is a statistical metric that tells us how likely it is to obtain the observed data, or…

Q: If X is a uniformly distributed random variable on the interval between 0 and 8, the probability…

A: The probability shows how likely an event occurs.

Q: Give a numerical description, and a short non-numerical description, of any variation seen within…

A: The objective of this question is to understand the variation in the respiratory rate before and…

Q: 21 With a 0.05, what is the rejection region for hypothesis test to see if the mean is less than 7…

A: Sample size n=36Level of significance=0.05

Q: In the output from a classification tree, R gives a quantity called "loss". Which answer best…

A: Given that,In the output from a classification tree, R gives a quantity called "loss". The objective…

Q: 61% of all Americans live in cities with population greater than 100,000 people. If 37 Americans are…

A: 61% of all Americans live in cities with population greater than 100,000 N = 37 P = 61% = 0.61 q = 1…

Q: d. The degrees of freedom = e. The test-statistic for this data show your answer to three decimal…

A: The total number of observations is 790. The probability of favoring vanilla ice cream is 0.242.The…

Q: You wish to test the following claim (Ha) at a significance level of a = 0.002. Ho: p= 61.8 Ha : μ <…

A: The null and alternative hypothesis is H0:=61.8Ha:&lt;61.8standard deviation()=13.8sample…

Q: Test a claim that the mean amount of carbon monoxide in the air in U.S. cities is less than 2.31…

A: The sample size is 64, the sample mean is 2.38 and the sample standard deviation is 2.12.

Q: The test statistic for the hypothesis test is X² = 6.83. Recall that the rejection region for a…

A: The test statistic is .The number of rows is  and the number of columns is .

Q: 17-2. Consider the following set of observations: 10.21 13.65 12.30 9.51 11.32 12.77 6.16 8.55 11.78…

A: Data : N = 10 { 10.21,13.65,12.30,9.51,11.32,12.77,6.16,8.55,11.78,12.32 } We can't assume that the…

Q: According to Gallup, 24% of American adults consider themselves to be liberal. A regional survey was…

A: The objective of this question is to determine the rejection region for a hypothesis test about a…

Q: Suppose that the hemoglobin levels among healthy females are normally distributed with a mean of…

A: It is required to find the standard deviation of the distribution of hemoglobin levels in healthy…

Q: It is necessary to conduct a tukey test for musician.  true  false  it is necessary to conduct a…

A: The objective of the question is to determine whether it is necessary to conduct a Tukey test for…

Q: 6. A university wants to promote the graduates of its honors program. At present it is stated that…

A:

Q: 2) Provide a point estimate of the mean annual automobile insurance premium in Michigan (SHOW…

A: Let X denote the annual premium for automobile insurance (in $)The national average of X for the US…

Q: -5 Consider seven alternatives for high-efficiency light bulbs. The cost and expected life of each…

A: The data on the cost and expected life of each design is given as  Design  Expected Life (1000h)…

Q: A corresponding relationship between confidence intervals and two-tailed hypothesis tests also is…

A: The sample size is 30, the sample mean is 22 and the population standard deviation is 3.

Q: You wish to test the following claim (H) at a significance level of a = 0.05. Ho: P₁ = P2 Ha: P₁ P2…

A: Given,Null hypothesis:Alternative hypothesis:

Q: Problem # 3 (a) Using the short method compute the arithmetic mean and sample standard deviation of…

A: The given frequency distribution is as follows: X (midpoint)f…

Q: Car battery durability. A manufacturer of car batteries asserts that the distribution of the…

A: Given information:

Q: According to the central limit theorem (CLT), no matter which distribution the data is collected…

A: The central limit theorem is used in what conditions.The central limit theorem states that "The…

Q: A normal blood sugar range for someone without diabetes, 2 hours after eating, is less than 140…

A: Given that,25% of the data lies below the value Q1.50% of the data lies below the value Q2.75% of…

Q: A statistics practitioner selected a random sample of 75 observations from a population with a known…

A:

Q: The “promotions manager” of a large cosmetics manufacturer wanted to investigate user acceptance…

A: The objective of the question is to identify the best statistical estimate for the proportion of all…

Q: Of 150 Chattanooga residents surveyed, 60 indicated that they participated in a recycling program.…

A: Let X be a Chattanooga resident who participated in a recycling program and Y be a Knoxville who…

Q: Is the number of games won by a softball team in a season related to the team batting average? The…

A: It is required to obtain the correlation coefficient, r, and the equation of the least squares…

Q: State, and briefly explain, whether the width of a confidence interval for one population proportion…

A: The formula for confidence interval for one population proportion is given as follows:where,

Q: You wish to test the following claim (H) at a significance level of a = 0.002. Ho:μ = 82.1 Ha:μ <…

A: From the provided information,

Q: Current Attempt in Progress Use the t-distribution to find a confidence interval for a difference in…

A: want to calculate an exact estimate, the margin of error, and the confidence interval for the…

Q: Using R Here we will investigate the “confidence level” of each of the confidence intervals:…

A: Given an exponential distribution with rate .

Q: If n=10, ¯x�¯ (x-bar)=33, and s=6, find the margin of error at a 99% confidence level (use at least…

A: n=10x¯=33s=6Confidence level = 0.99Significance level α = 1 - 0.99 = 0.01

Q: Fx (x)₁ 1 78 34 20100 + 12 + 00100 + 11 + 1 + 2 3 + 4 Fx (x) → 1 as xx + Cr. : 5 X

A: From the given graph, the PMF of X can be written as

Q: Construct a box-and-whisker plot for the data with a minimum of 12, first quartile of 15.5, median…

A: The  information is given in terms of five number summary as follows:minimum=12; first…

Q: A continuous random variable X has a pdf of the form: f(x) = (424/27) x^3, for 0.53 < X <0.76.…

A: It is given that The continuous random variable X has a pdf of the formf(x) = (424/27)x3 , 0.53…

Q: 6. Explain what this confidence interval means to your boss, who has never taken a statistics class.…

A: What is confidence interval and explain it to non statistics person.

Q: A class survey in a large class for first-year college students asked, "About how many hours do you…

A: Suppose is the population mean number of hours students study per week.

Q: The number of runs in a baseball game is measured using a(n) O interval scale. Oratio scale. O…

A: The variable being measured is the "number of runs in a baseball game."Objective:Determine the scale…

Q: What is the expected frequency for each category in the table below? Police are not Approachable Not…

A: Policies are approachablePolicies are not approchableRow TotalNot afraid at all304070somewhat…