In an experiment, you are measuring a 20.0-gram ball using two different scales, and your data looks like this: Scale 1 16.5 16.7 17 16.6 Scale 2 20.2 19.8 18.9 20.1 a) Which scale is more accurate? b) Find the standard deviation for each scale, state the relation between standard deviation and precision then determine which scale is more precise? c) Calculate the percent error if the scale gives you an output of 19.0 gram.

Q: Describe the differences between a probability sample and a nonprobability sample

A: Introduction: A probability sample involves the use of probabilistic concepts to collect the sample,…

Q: 6. Ackerman and Goldsmith (2011) report that students who study from a screen (phone, tablet, or…

A: Given :  μ = 77 σ = 8  n = 16

Q: Given the following measurements from the length of the table: L1 = 3.65 m, L2 = 3.67 m, and L3 = 3.…

A:

Q: For the given data set of number (x): X= {80.5, 85.71,82.47, 87.41, 68.9, 70.10 , 0, 100:28, 90.25,…

A:

Q: The data describing the hourly output of a production line are normally distributed, with a mean of…

A:

Q: Q1/ The following data represents the SiO2 grade in %; construct frequency table and calculate mean,…

A:

Q: Suppose the average amount of apples per tree in a large orchard is 600 pounds with a standard…

A: Concept of sampling distribution of sample mean: Let a particular characteristic of a population is…

Q: B. The following table shows the distribution of the number of hours worked each week (on average)…

A:

Q: In which interval are there more men: 220-240 or 280-3407 There are more men in the interval (Choose…

A:

Q: Calculate the sample standard deviation for this data set: 65, 48, 70. The formula for the sample…

A:

Q: Which of the data set(s) is the most affected by a systematic error? %Deviation for Replicate…

A: Systematic error: It ususally affects measurements the same amount or by the same proportion,…

Q: b. In a class of twenty-five 15-year old girls the average height is M = 62.60 inches. The national…

A: Given: X=M=62.60 inches, μ=63.80 inches, s=2.66 inches The Cohen’s d effect size is calculated as…

Q: Use the empirical rule for finding the percent of data, which are normally distributed, that lie a.…

A: Empirical rule : 68% area covered within 1 standard deviation of the mean. 95% area covered within 2…

Q: . less than 24 mpg? B. 30 mpg or more? C. between 20 and 28? 2

A: Question 1)The mean of the distribuiton is  mpg. The standard deviation of the distribution is…

Q: An environmentalist wanted to determine if the mean acidity of rain differed among Alaska, Florida,…

A: Consider that, µ1, µ2, and µ3 define the mean acidity of rain differed in Place A, F, and T,…

Q: w and label the Normal model H percent of adult women do you expect to have cholesterol levels over…

A: Given Mean=183 Standard deviation=26

Q: mean? 2. In a normally distributed set of data with µ = 14.7 and o = 3.4, is the score Y = 74…

A: Given : Population Mean,μ = 14.7 Population Standard Deviation,σ = 3.4

Q: 13. In a survey, respondents were asked to indicate their total number of years of schooling.…

A: I solved exactly first three subparts because of bartleby policy if you want more please uplode…

Q: The accompanying data sets represent the annual rate of return (in percent) of eight randomly…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: . There is some reason to believe that the mean normal adult body temperature is not 98.6 degrees…

A: We want to test whether the mean normal adult body temperature is 98.6 F or not. Let μ denotes the…

Q: Consider the following stem and leaf plot. Find the third quartile 75th percentile. Use the…

A:

Q: What is the probability that a registered voter voted in the election? About About 3,166,339…

A:

Q: Find the following measures of dispersion using the following lists of average monthly temperatures…

A: Data for two groups is given. We have to check which data set has more variability according to…

Q: the following information. 99 99 80 100 87 Develop a point estimate of the population standard…

A: It is given that the sample of 5 months of sales data. The data is 99 99 80 100 87

Q: ting heart rates of a group of healthy adult men were found to have a mean of 73.4 beats per minute…

A: Given that the resting heart rates of a group of healthy adult men were found to have a mean of 73.4…

Q: The following readings were recorded for voltage measurement : 8.3, 7.8, 8.6, 7.2, 8.3, 7.9,…

A: As per our guidelines we are supposed to answer only 3 subparts of any questions so i am solving…

Q: A group of students take a Statistics Exam where the average was M = 90 and the standard deviation…

A:

Q: normal distributions

A: Consider that the margin of error (ME) is given by the formula, Here, a. Consider the given…

Q: c. Histograms of Data Set I and Data Set 2 are ow. Whic one has to have the larger standard…

A: We are given histograms for dataset 1 and dataset 2.The objective is to identify the histogram with…

Q: Based on data from a​ college, scores on a certain test are normally distributed with a mean of 1531…

A: mean = 1531  a standard deviation = 324

Q: Can you assist me in answering this? (this is not graded but, rather, an excersice conducive to…

A:

Q: $ 20. Calculate the standard deviation from the following data : Size of item Frequency Size of item…

A: size of items (x) Frequency (f) f⋅x f⋅x2 6 3 18 108 7 6 42 294 8 9 72 576 9 13 117 1053…

Q: The analytical chemist measured the pH of the water sampled from a local lake. There are ten…

A: Given The data is as follows:

Q: The coefficient of variation (CV%) is a normalized measure of the dispersion of a distribution. It…

A: given data  ∑x = 61.2∑x2 = 444.6n = 16cv% = ?

Q: Test 1, #2. Given the small data sample below, complete the following tasks by hand: 37 42 31 38 43…

A:

Q: How high must a vehicle's gas mileage be to fall in the top 15% of all vehicles?

A: Given,  Mean μ=23 miles per gallon(mpg) Standard deviation σ=4.9 (mpg)Let x be the mileage above…

Q: Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: For a sample with a standard deviation of s = 12, a score of X = 42 corresponds to z = –0.50. The…

A: given data  s = 12 x = 42 z = -0.50 sample mean (M) = ?

Q: A quantitative data set has size 50. At least how many observations lie within three standard…

A: The size of the data set is 50.

Q: A population has a mean μ = 72 and a standard deviation a=27. Find the mean and standard deviation…

A:

Q: For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 39 beats…

A: Note: Hey, since there are multiple subparts posted, we will answer first three subparts. If you…