A random sample was taken and the data is shown below. For the data shown, answer the questions. Round to 2 decimal places.

Q: The scores of the top ten finishers in a recent race are listed below. 65 66 66 67 67 67 68 70 70 71…

A:

Q: a. Calculate the sample means. Xcorporate =[ XNavy =0 (Round to two decimal places as needed.)

A: The data shows the prices of the same items at a military commissary and a nearby corporate store.

Q: Find the percentile rank for each test score in a data set. 12, 28, 35, 42, 47, 49, 50. What value…

A: Given, 12,28,35,42,47,49,50 sample size (n) = 7 Percentile position = (n+1)*p/100  a) For p = 40…

Q: Find the standard deviation of this number set: {2, 4, 9} showing all of the steps involved as shown…

A:

Q: ects several samples from the manufacturer and records the following learned in Forecasting,…

A: Given: The data given is as shown below Temperature (x) Strength (y)  185 5150 183 5125 187…

Q: Given these stats how many students scored a 65 or lower?

A: given: mean =68.3          standard deviation = 21.1 let x be the score of the students to find…

Q: nge receives an average in a given minute, the e calls;

A:

Q: The tables below show the cross-tabulation and Chi-square tests for the location where women gave…

A: From the given table, The row sum of expected count for widowed group is  That is,…

Q: Given the sample mean, frequency and probability. Find the number 4 and 5 in the second picture.

A: Given Information: Population consists of 2, 6, 8, 0, 1 Sampling distribution of sample means:…

Q: The middle score in a group of scores is called ? a. mode b. median c. mean  d melting point

A: The middle score in a group of scores is called Median.

Q: The 78th percentile i (Round to two decimal places as needed.)

A: Here use normal distribution table for finding z score

Q: A random survey was conducted about gender and hair color. This table records the data. Brown Blonde…

A:

Q: When estimating the population proportion, how large a sample is needed to be 95% confident that the…

A: Given:  The margin of error is equal to 0.05  Confidence Level : 95%  It is asked to compute the…

Q: A sample has SS= 20 and s? = 4. How many scores are in the sample?

A: Six scores are in the sample.

Q: Assess the given data as a student, if n=11 then what is the value of Q3 needed for interpreting a…

A: Givenn=1

Q: The test scores of 20 students are listed below. Find the 34th percentile

A: We have to find the 34th percentile from the given data set.

Q: Find sample size CI=75% E=3.61 Stand. dev.=6.78

A:

Q: The indicated z score is

A: Given a standard normal distribution graph with mean 0 and standard deviation 1.  We need to find z…

Q: a. Measurement for the diagram below: Preview b. Measurement for the diagram below: Preview

A:

Q: What proportion of z scores lie between -1 and +1 in the "height in inches" data set?

A: We have to find the probability such that P(-1 < Z < 1)

Q: What proportion of smokers in the sample died from heat disease? Round your answer to four decimal…

A: Given: Health data given for different categories. To calculate: Proportion of people who died from…

Q: What proportion of z scores lie between -3 and +3 in the height in inches data set

A: We have to calculate P(-3 < Z < 3)

Q: Jse the samp A research institute poll asked res, ndents if they felt vulnerable to identity theft.…

A: The sample proportion (point estimate) is computed as follows,    0.554

Q: c) Find the z-scores corresponding to 66 inches (5 ½ feet) and 72 inches (6 feet).

A: The mean is 70 and the standard deviation is 4.

Q: How many individuals are represented in the histogram? n =

A: The frequency distribution table for provided histogram is given below: Class interval…

Q: Find the measures.

A: Known fact: A shape polygon with 4 equal sides is called square. Given that WZ=27. That is, side of…

Q: Blood pressure measurements consist of two numbers, the systolic pressure and the diastolic…

A: From the given information, x y x^2 y^2 xy 134 72 17956 5184 9648 115 83 13225 6889 9545…

Q: c. Answer part (b) for a sample of 580 (to 4 decimals). -0.888:

A:

Q: Fourteen different​ second-year medical students at a hospital measured the blood pressure of the…

A: Given data is120,149,135,132,120,125,129,130,128,124,123,140,137,150sample size(n)=14

Q: Classify each sample as random, systematic, stratified, or cluster and explain your answer. Every…

A: Classify each sample as random, systematic, stratified, or cluster and explain your answer. Every…

Q: Based on the histogram, find the portion of ATHs in the sample that are at least 1000 thousand…

A: Consider a random variable X that defines the number of ATH in the sample.

Q: se the values on the number line to find the sampling error. H 24.69 x= 25.92 24 25 The sampling…

A: Solution: Given information: x= 25.92   Sample mean μ= 24.69    Population mean

Q: A sample consists of n = 16 scores. How many of the scores are used to calculate the range?

A:

Q: product." What percentage of the respondents who disagree are in the 35-54 age group?

A: Here Given  Total number of Respondent=141=N Number of Respondent DIsagree=31=N(D) Number of…

Q: Find the probability that a dart tossed at random onto the figure will land in the unshaded area.…

A: Given that:

Q: In a study, the data you collect is Number of traffic tickets. What is the level of measurement? O…

A: The data you collect is Number of traffic tickets

Q: A die was rolled 360 times and the results were: No. of Spots (outcomes) Frequency 1 54 2 70 58 62…

A: The number of times a die is rolled=360 No. of spots(Outcomes) Frequency 1 54 2 70 3 58 4…

Q: To find the mean, you take the sum of all the survey responses and then divide by what? Additional…

A: Here given,  The table shows the mean commute time (in minutes) by state for workers at least 16…

Q: The highest bar in a histogram represents O a. The class with the lowest cumulative frequency O b.…

A: According to the given information, we have Histogram is given.

Q: Use the data provided to find the proportion of respondents who own Dell, Apple, and HP computers.…

A: Given information: The provided data is yielded from a laptop survey. The data consisted information…

Q: Fourteen different second-year medical students at a hospital measured the blood pressure of the…

A: Given data is 128, 120, 125 , 129, 130, 138, 142, 125, 140, 145, 150sample size(n)=11Arrange the…

Q: A random sample of students was surveyed and asked to list their grade level and whether or not they…

A:

Q: Determining the class standing (1st, 2nd, and so on) for the graduating seniors at a high school…

A: Introduction: Scales of measurement: Nominal: When the possible observations are tags or categories…

Q: Given these stats how many students scored a 35 or lo

A: From the given histogram, The number of students corresponding with class [0, 4.7] is 3. The number…

Q: During an experiment, the following times (in seconds) were recorded. Find the mean. 6.3, 5.4, 6,…

A: The given data is: 6.3, 5.4, 6, 3.2, 5.4, 5.5 To find the mean.

Q: a) Find the best point estimate of the population proportion p. (Round to three decimal places as…

A: It is given that  Sample size, n = 1052 Favourable cases, X = 512

Q: pne-half make less than $5.37 per hour. What measure of central tendency was most probably used…

A: Our aim is to find the which measure of central tendency was most probably used in this situation.

Q: percentage of women that received the treatment showed hair growth of 1-2 inches? Answer: Blank 1:…

A: Solution

Q: A geographer studying West Africa would like to know the size of stones in the delta region where…

A: Frequency table for the size is given: Size (cm) Frequency [0,2) 17 [2,4) 13 [4,6) 10…

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.