A stats instructor was horrified to see that the distribution of N = 53 homework scores had a mean of u = 73. However, the instructor realized that this mean included scores from five students who didn't turn in any assignment (i.e., who had been given scores of 0). If she wanted to re-compute the mean to evaluate the performance for only the students who did turn in their homework, what would be the new mean for those students?

Q: According to the Pak Car Dealers, the mean price for used cars isRs. 900,000. A Firm reviewed a…

A: Given Data National mean=900000

Q: If your score on your next statistics test is converted to a z​ score, which of these z scores would…

A: We have to find that which z score prefer for next statistics test....

Q: Use the following data to answer the problem below. Subject Ms Chemistry 70 12 Math 28 7 Betty…

A: From the provided information, Subject M s Chemistry 70 12 Math 28 7

Q: One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a…

A:

Q: The P-value for a one-sided test for a mean is 0.06. The P-value for the corresponding two-sided…

A:

Q: Based on the histogram below, how are the data distributed, and where is the mean located in…

A: It is negatively skewed histogram.  where the tail of the distribution is longer on the left side…

Q: The college Physical Education Department offered an Advanced First Aid course last quarter. The…

A: Givenz-scores of students isSue=-1.30Bill = -0.92mary = 0.00Mark =2.65Ben = 2.04Sam = -1.59

Q: The college Physical Education Department offered an Advanced First Aid course last summer. The…

A:

Q: In a sample of n=6 scores, five of the scores are each one point above the mean. Where is the sixth…

A:

Q: Now, suppose that the agronomist is also interested in how a particular type of fertilizer, in…

A: (d). Identify the experimental units in the study: The agronomist is interested to test how a…

Q: Suppose that 35%  of all adults in a population would say “good”  and 65% would say “bad”  if they…

A: As per the question35% population say good65% population say badMean of the ample proportion who say…

Q: Do ESL students score lower in English college placement tests than the national average? A…

A:

Q: Based on the histogram below(attached image), how are the data distributed, and where is the mean…

A: We know that if a distribution has mean < median < mode then it is called negatively skewed…

Q: uppose a student got an examination score of 90 in Statistics and Probability, where the mean was 75…

A: We have given that.   X~N( μ , ?^2 )   μ=75     , ?=5  , X=90      for  istatistics and…

Q: A sample of n=7 scores has a mean of M=9. If one new person with a score of X=1 is added to the…

A: Sample of n = 7 scores has a mean of M = 9. We know that, Mean =Sum of observationsTotal number of…

Q: in a sample of n=6 five of the scores are above the mean by one point. where is the sixth score…

A: Let x be the mean, y be the sixth score and 5 scores are one point above the mean is 5(x+1).

Q: According to the U.S. Census Bureau, the distribution of family sizes in the United States for the…

A: Since you have posted a question with multiple sub-parts, we have provided answer for first 3…

Q: The following is a first-year college student’s first semester transcript. Fall 2020 Course…

A: Consider the credit hours as weights. The formula for weight average is defined as follows:

Q: The owner of a cell phone store at Greenhill's Shopping Center was not happy when he learned that…

A: In statistical hypothesis from the given information, and according to the objectives we use…

Q: If sp2 = 7.37, n1 = 6 and n2 = 6, what is the estimated standard error of the mean difference,…

A: Denote μ1, μ2 as the means of 1st population) and 2nd population, respectively.

Q: sports psychologist tests a new coaching method and finds that of the 43 novice athletes who were…

A:

Q: Consider the following table. Compare the mean, median, and mode of all of the exam scores with the…

A: Mean is measure of central tendency which depends on all observation whereas median is only depends…

Q: The owner of a cell phone store at Greenhill’s Shopping Center was not happy when he learned that…

A: Here, µ is the true mean number of cell phones sold daily. Null hypothesis, H0: µ=8 Alternative…

Q: The average number of cavities that thirty-year-old Americans have had in their lifetimes is 4. Do…

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

Q: In calculating the moments of a frequency distribution based on 100 observations, the following…

A:

Q: The sum of the squared deviation scores is SS = 20 for a sample of n = 6 scores. What is the…

A: The variance of the sample can be calculated as:

Q: The scores for Person X in 3 different subjects are given below. The mean and SD of the grades of…

A: Which one is better score subject wise.

Q: A population of N= 23 scores has a mean of u = 5. After one score is removed, the mean is found to…

A: Given that - A population of N= 23 scores has a mean of u = 5. After one score is removed, the mean…

Q: One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to…

A: Given: Grade Points A 4 B 3 C 2 D 1 F 0 The given score data can be tabulated as:…

Q: The following situations require inference about a mean or means. Identify each as (1) single…

A: Dependent t-test: The dependent t-test, also known as the “paired t-test” or “matched pair test”, is…

Q: One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a…

A: Given information 4 points – A grade 3 Points – B grade 2 Points – C grade 1 point – D grade 0 point…

Q: Assume the data are minutes too late to statistics class of five consecutive days. X  12 23 15…

A:

Q: In general, % of the values in a data set lie at or below the median. ___________% of the…

A: QUARTILE: The lower quartile is the middle number of half of the data below the median , and the…

Q: One common system for computing a grade point average (GPA) assigns 4 points to an A, 3 points to a…

A: Bartleby poilcy: Since you have asked multiple question, we will solve the first question for you.…

Q: A sample of n=11 scores has a mean of M=9. If one new person with a score of X=4 is added to the…

A: Given that, A sample of n=11 scores has a mean of M=9. One new person with a score of X=4 is added…

Q: One group of accounting students took a distance learning class, while another group took the same…

A: The given values are:

Q: Each of the variables displayed in the histograms below has a mean of 14.5, a range of 8, and 59…

A:

Q: Which of the following samples would have the largest standard error of the mean

A:

Q: According to the U.S. Census Bureau, the distribution of family sizes in the United States for the…

A: Given: Number of person Number of families (thousands) Percentage   of families 2…

Q: A random sample of 15 college students were asked "How many hours per week typically do you work…

A: The frequency for each class interval is obtained by counting the number of data values that lie…

Q: Executives of a supermarket chain are interested in the amount of time that customers spend in the…

A: Here our null hypothesis is the mean is equal to 40 and the alternative hypothesis is mean is…

Q: A set of n-4 scores has a mean of u11. H8 points are subtracted from one of the scores, what is the…

A:

Q: dent 5 4 Student 6 7 Student 7 7 Student 8 5 Student 9 1 Student 10 10 Student 11 8…

A: Given that ;  Sample size (n) = 15  Let X represents the scores on Dr. Grant’s Professional…

Q: High school swimming state averages are as follows: Freestyle: mean time 72.39 seconds, standard…

A:

Q: hown here is a sample of six of the largest accounting firms in the United States and the number of…

A: The mean is given by x =∑xn x =96366 =1606 The range is given by Range = Max- Min Range = 2693 -311…

Q: A sample of N = 9 individuals participates in a repeated measures study that produces a sample mean…

A: The hypotheses are given below: Null hypothesis: H0:μd=0 Alternative hypothesis: H1:μd>0 The…

Q: A medical doctor is interested in determining whether mean body temperatures are different in the…

A: The claim is that the mean body temperatures are different in the morning and night.

Q: Given a set of normally distributed scores with the mean of 20.00 and SD of 5.00, what proportion of…

A: We are givenμ = 20, σ = 5a)We have to find P( 10 < x < 28 )

Q: One common system for computing a grade point average​ (GPA) assigns 4 points to an​ A, 3 points to…

A:

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.