Math

StatisticsQ&A LibrarySay you have 50 samples, each with 15 puppies. All have been rated in regards to cuteness. You are asked by the kennel association to calculate the Standard Error of the Mean for them. They just couldn’t do it and they need it for accreditation purposes. However, they were able to tell you that the mean for one of the samples was 8.4, and it’s standard deviation was 1.3, while the range was 5. So, please calculate the Standard Error of Mean, which is:Start your trial now! First week only $4.99!*arrow_forward*

Question

Say you have 50 samples, each with 15 puppies. All have been rated in regards to cuteness. You are asked by the kennel association to calculate the Standard Error of the Mean for them. They just couldn’t do it and they need it for accreditation purposes. However, they were able to tell you that the mean for one of the samples was 8.4, and it’s standard deviation was 1.3, while the range was 5. So, please calculate the Standard Error of Mean, which is:

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: A real estate agent believes that the value of houses in the neighborhood she works in has increased...

A: It is given that the alterative hypothesis is as follows: Ha : µd > 0, the t test statistic is 7....

Q: Exam grades: scores on a statistics final in a large class were normally distributed with a mean of ...

A: Let X be the scores on statistics final, which is normally distributed with mean = 75 and standard d...

Q: A physician wants to test if temperature has an effect on heart rate. In order to do this, she compa...

A: In this question, it has been given,Test Statistics = 5.627Level of significance = 0.05Rejection Reg...

Q: In a standard normal distribution, what is the area under the graph for z>0? Explain.

A: Normal distribution:A random variable X is said to follow a normal distribution if the probability d...

Q: See the attached question.

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...

Q: The number of unhealthy days based on the AQI ( Air Quality Index) for a random sample of metropolit...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is unknown is give...

Q: The table below shows the critical reading scores for 14 students the first two times they took a st...

A: Given the data of critical reading scores for 14 students the first two times they took a standardiz...

Q: Do most researchers still insist on at least interval level of measurement as a condition for the us...

A: Solution:In Interval scale, the difference between two values are standardized and equal. Most stati...

Q: I need help understanding observational units, variables, how to formulate research questions.

A: Solution:Observational units:Observational units are the objects or entities on which information co...

Q: Five children aged 2, 3, 5, 7 and 8 years old weigh 14, 20, 32, 42 and 44 kilograms respectively. Fi...

A: Let x be the age of children and y be the weight of children.The equation of the regression line is:

Q: how do I compute six deviations (x scores are [0,1,1,1,2,7,]) from the mean (x-m), and list these si...

A: Solution:Calculation of mean:The mean of X scores is calculated as follows.

Q: A personnel director in a particular state claims that the mean annual income is the same in one of ...

A: According to the given question, in order to test that the annual income is the same in one of the ...

Q: Deborah wants to estimate the percentage of people who eat fast food at least once per week. She wan...

A: Margin of error is usually computed using the formula below. In this question, Margin of error is k...

Q: Directions: Draw the normal curve and shade in the specific region. Show formulas used and the subst...

A: Introduction:The normal distribution is a symmetric and mesokurtic continuous probability distributi...

Q: A store sells bags of candy that weigh exactly 2lb, according to their packaging. Elena, the store m...

A: It is given that the store sells bags of weight, exactly 2lb. The claim is that the population mean ...

Q: 12.10. Question attached. Thank you for answering my question!

A: Bonferrroni's formula for half-width is given by the formula shown below where I = number of means (...

Q: What is the condition on the probability of success p that will guarantee the histogram of a binomia...

A: The binomial distribution has p - probability of success and n- number of trails. The binomial distr...

Q: The claim is that the proportion of peas with yellow pods is equal to 0.25 (or 25%). The sample sta...

A: Sample proportion:It is given that out of 420 peas, 116 of them having yellow pods.The claim states ...

Q: Statistics Question

A: Solution:Computation of equation of the regression line:Step-by-step EXCEL procedure to find the equ...

Q: Linear Programming Problem A manufacturer of three models of tote bag must determine the production ...

A: The provided data is,The available time for the respective production departments is,Cutting: 450 ho...

Q: A manufacturer of a certain type of hardware has two manufacturing facilities and wants to compare t...

A: Conditions:The conditions for the two proportion test for sample sizes n1 and n2 with sample proport...

Q: In a survey of 3 of 4 students said the courts show too much concern for criminals. Find the probab...

A: According to the given question, in a survey of 3 of 4 students said the courts show too much concer...

Q: Use the normal approximation to the binominal to approximate the probabilities. *Using A Ti-84 Calcu...

A: Normal approximation to the binomial:From the given information, it is clear that n = 120The probabi...

Q: Lydia Hayward is an external research consultant hired by FirstCard, a major credit card company, to...

A: Correct Option D) This is a right-tailed test because the alternative hypothesis is Ha:μ1−μ2>0.Ex...

Q: The same media consultants decided to continue their investigation of the focal relationship between...

A: Regression analysis:Regression analysis estimates the relationship among variables. That is, it esti...

Q: How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y b...

A: Part (a):The scatter diagram, along with the best fitted line (least-squares regression line) for th...

Q: Please answer the whole question. (1) Let x be the age in years of a licensed automobile driver. Le...

A: (e) The value of coefficient of determination:The given data is represented in the following table:

Q: The Toylot company makes an electric train with a motor that it claims will draw an average of only ...

A: The provided information are:

Q: Flying over the western states with mountainous terrain in a small aircraft is 40% riskier than flyi...

A: (a) Poisson distribution:It is a discrete probability distribution that models the number of events ...

Q: Select the statistic test that best fits each description. Study examining how much of the variation...

A: Regression:Regression analysis explains whether two variables are related or not and correlation exp...

Q: 1.) The mean monthly utility bill for a sample of households in a city is $178.95 with a standard de...

A: Mean utility bill, µ= $178.95Standard deviation, σ = $13.45

Q: Phil Dunphy, a real estate agent, is considering whether he should list an unusual $345,507 house fo...

A: Profit received by the agent if he sells the house = (Commission received – amount spent on advertis...

Q: Q5. You are considering two investment choices: a. 1 year CD that pays 2% for sure; b. investing in ...

A: It is provided that the investment in CD has return of 2% for sure.So, the mean return of this inves...

Q: D, E, F

A: In this question, we have the data for two groups and we have to find the inference about the popul...

Q: Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone...

A: In this question we have the data, using which we have to plot the scatter plot and best line of fit...

Q: Number 1 Please, Explain shortcut with TI84 if applicable

A: a. Computation of test statistic value:Sample size is greater than 30 and the population standard de...

Q: The price to earnings ratio (P/E) is an important tool in financial work. A random sample of 14 larg...

A: (a) Level of significance:Level of significance (α) indicates the probability of rejecting null hypo...

Q: A national newspaper reported that the state with the longest mean life span is Hawaii, where the po...

A: Part (A):Sample mean:Denote the life span (years) of a randomly selected individual by X.In order to...

Q: Statistics Question

A: According to the provided information, the variable ‘x’ be age of the best actress winner and ‘y’ be...

Q: According to a random sample taken at 12 A.M., body temperatures of healthy adults have a bell-shape...

A: Chebyshev’s inequality:Chebyshev’s rule is appropriate for any distribution. That is, Chebyshev’s in...

Q: Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) sho...

A: given x represent the dollar amount spent on supermarket impulse buying in a 10-minute shopping inte...

Q: A farmer wants to test if a new fertilizer will produce more massive crops. In order to do this, he ...

A: Paired t-test statistic:In order to test a hypothesis regarding whether the difference between a pai...

Q: Workers at a large toxic cleanup project are concerned that their white blood cell counts may have b...

A: Let the random variable X be the white blood cell count per cubic millimetre of whole blood in a hea...

Q: How are r and r2 interpreted?

A: In this question, we have to explain how we interpret r and r2

Q: Claim: Most adults would erase all of their personal information online if they could. A software fi...

A: Test statistic:The test statistic for hypothesis test for proportion is given by:

Q: See attachment for question.

A: Introduction to binomial distribution:Consider a random experiment involving n independent trials, s...

Q: Let z=a be a positive z score in a standard normal distribution. If the area under z>a is 0.4, th...

A: Standard normal distribution:A normal distribution with mean (µ) 0 and variance (σ2) 1 is called sta...

Q: please answer the whole question (3) Let x be per capita income in thousands of dollars. Let y be t...

A: (a) Least square regression line:The least squares regression line can be obtained using EXCEL. Ente...

Q: Assume that a populatio of thousands of people whose responses were used to develop the anxiety test...

A: Hey, since there multiple subparts posted, we will answer first three subparts. If you want any spec...

Q: A simple random sample of n=23 professors at a local community college have a mean course evaluation...

A: Solution:Null and alternative hypotheses:Null hypothesis: µ = 4Alternative hypothesis: µ ≠ 4Test sta...