if the real value of certain experiment is xreal=1.98 and we take 5 messurements whose values are x1=2,x2=2.01, x3=1.99, x4=1.97 and x5=2.02 find the resolution in %

Q: There are 5000 observations in a data set. 10% of the data are “1”s, while the rest are “0”s. If we…

A: The data set consist of 5000 observations. The observations are 0's and 1's. An amount of data…

Q: A sample has a mean of 30 and s=8 would a score of x=36 be considered a central score or an extreme…

A: The z-score for x=36 when mean of 30 and standard deviation of 8 is, z=x-Means=36-308=68=0.75 It is…

Q: How many of the following measures are quantitative?

A: A variable is said to be quantitative if it can be measured numerically and operations like…

Q: An epidemiologist is worried about the prevalence of the flu in East Vancouver and area. She will…

A: The smapleproprotion is caculated as: p = x/n=36/330 =0.1091   At a 95% confidence level, the z…

Q: In a one-tail test, the p-value is found to be equal to 0.0026. If the test had been two-tailed, the…

A:

Q: A sample of n = 4 scores has a mean of x̅ = 40, with a sum of squares of SS = 48. What is the…

A: Given that n=4, x̅ = 40 and SS=48 Consider, the variance, s2=SSn-1=484-1=16

Q: If you were to calculate the mean from a frequency distribution and compare it with the true mean…

A:

Q: a. Assume that nothing is known about the percentage to be estimated. (Round up to the nearest…

A: a) If nothing is known about percentage to be estimated,  We will have a conservative estimate for…

Q: Maya conducted an experiment that tests the hypothesis that "Studying hours have a positive effect…

A: Here given Maya conduct experiment tests the hypothesis

Q: If X ~ N(10,3), find the X value that is the 16th percentile.

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 3

Q: A population with a mean of µ= 8 has EX=40. How many scores are in the population

A:

Q: If you have a z-score of 4.00 and the body proportion is .99997 and the question is asking for the…

A: The z-score is given by 4.

Q: Suppose that the researchers wanted to estimate the proportion of patients under 50 years old who…

A: Givenpatients under 50 yearsx=15n=81p^=1581=0.185Margin of error(E)=0.03confidence level(c)=95%

Q: (e) forty-three percent of all trials of this type are completed within how many days?

A: Given Information: The duration of a particular type of criminal trial is known to be normally…

Q: Question 2: A magazine article reported that 11% of adults buy takeout food every day. A fast-food…

A:

Q: If you want to gain more precision in your confidence interval around a point estimate, what effect…

A: If you want to gain more precision in your confidence interval around a point estimate, what effect…

Q: A manufacturer knows that their items lifespans are normally distributed according to…

A:

Q: On a reading examination given to 900 students, Elaine’s score of 602 was higher than the scores of…

A: Solution

Q: A researcher reports an F-ratio with df= 2, 18 from an independent-measures research study. Based on…

A: It is an important part of statistics . It is widely used .

Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: . A population with a mean of 10 has EX 250.How many scores are in the population?

A: Note: Hey there! Thank you for posting the question. For calculating number of scores in the…

Q: QUESTION 12 An equity analyst wants to verity whother there is a vaniation in the mean rate of…

A: Total degrees of freedom is 110-1 =109 Between degrees of freedom is 4-1 =3.

Q: A researcher reports an F-ratio with df = 1, 24 for an independent-measures experiment. If all the…

A:

Q: You have received a radioactive mass that is claimed to have a mean decay rate of at least 1…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: 1. Incide nce rate in the last influenza epidemic was found to be 50 per thousand (S%) of the…

A: Concept: for this question, we need to employ Cochran’s Sample Size Formula given by:…

Q: Thirteen different video games showing alcohol use were observed. The duration times of alcohol use…

A: Given,sample size(n)=13population mean(μ)=77secH0:μ=77 secHa:μ>77 sec

Q: Suppose the relationship between Y and X is given by: Y = 10 + 8.75*X + error  By how much does…

A: Solution: From the given information, Y=10+8.75*X+ error

Q: The z score length of a carrot is 1.5, what is the length of this carrot?  what percentage of…

A: We have to find  the percentage of carrots....

Q: In a given set of scores, the following data were obtained, the highest score is 83, the median…

A: A P percentile is the value in a dataset below which P percent of the data lies. A median is the…

Q: Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.

A: Given data number of success , x= 20.0 sample size, n = 540 population…

Q: A firm produces bolts whose length x is normally distributed with a Me = 78.3 mm and a SD = 1.4mm.…

A: Given information- Population mean, µ = 78.3 mm SD = 1.4 mm Let X be the length of the bolt produces…

Q: (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are…

A: Given: μ=515, σ=110 The corresponding z-value needed to be computed: The probability that s scores…

Q: In a population with o = 8, a score of X = 44 corresponds to a z-score of z= -0.50. What is the…

A: Here, standard deviation is 8, X = 44, and z = –0.50.

Q: An individual is selected from a normal population with a of μ = 80 with σ= 20, and a treatment is…

A: It is given that the mean is 80 and the standard deviation is 20.

Q: d) Theth percentile corresponds to this score, which means that 299 is (Round to five decimal places…

A: Now finding the answer for (d) Given that the best score is 299 now we have to find percentile…

Q: A rental car company purchased a new Toyota Camry for $35,000. The company determined this asset…

A: NOTE: Refresh your page if you can't see any equations. . The company determined this asset should…

Q: A sample of n observations has a sample mean of �̅x= 100 and variance of σ2 =100. If a new…

A:

Q: If a constant c is added to each xi in a sample, yielding y; = x; + c, how do the sample mean and…

A: Note:-Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: In a question on correlation, the value of r is 0.917 and its probable error is 0.034. What would be…

A:

Q: How large a sample must she select if she desires to be 98% confident that the true mean is within 4…

A: HERE GIVEN , population standard deviation  = 6 ounces  confidence level = 98%  MOE  = 4

Q: In this problem you will use scaled QR solve the normal equation for 2 2 [i -3 1 4 -2 1 -2 4 -3 4 -2…

A: The problem with multiplications of the 3 matrices can be solved using the multiplications step by…

Q: If a sample of n=5 scores has EX= 10 and EX² = 100, then SS= 80. %3D True False Question 41 In a…

A: (a) Given : Sample size = n = 5 , ∑X=10    &     ∑X2=100 Formula for Sum of Squares :…

Q: Question 2 The Z-scores of an accepted range of Pizza Pockets is between -1.10 and 0.51. If there…

A: Probability is the measure calculated by various methods. One of such method is z score. When the…

Q: You have been tracking how much you spend on gas every month for several months and found that on…

A: The interquartile range is the difference between the third quartile and the first quartile and it…

Q: An investigator wants to estimate caffeine consumption in high school students.  How many students…

A: The provided information are:Confidence level = 95% = 0.95So, significance level (alpha) = 1-0.95 =…

Q: If t=1.093 with degrees of freedom equal to 10, what percentile does this represent?

A:

Q: The Law of Large Numbers states that as the number of observations in a sample increases, the mean…

A: Here we have given the multiple choice question about the law of large numbers. The Law of Large…

Q: Question 3 Assume that s = 15 for the IQ scores. Find the sample size needed to estimate the mean IQ…

A: We have given that,  Margin of error (E) = 3 , standard deviation     (σ) =15 and confidence level =…

Q: If im getting 5gb of data per day , then what will be the EPS (event per second) in 24 hrs?…

A: Consider the provided question, Since, In 1 days or 24 hrs got 5 GB data. Given, 400 bytes = 1 eps…

Q: Assume that we have made 10 repeated measurements of a quantity, and as a result the error assigned…

A: We have given that a statement. Assume that we have made 10 repeated measurements of a quantity, and…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.