Question
r9o1010 Au
cimal places)
sadle
Cx03.9
63
The average score of local students on a college entrance exam is 110 with standard deviation
of 15. The distribution is roughly belhaped. Use the empirical rule to find the following
percentage.
a) The percentage of local student with score above 155.
b) The percentage of local student with score between 80 and 125.
c) The percentage of local student with score below 95
apter 3
11. A blood bank catalogs the types of blood, including positive or negative Rh-factor, given by donors
during the last five days. The number of donors who gave each blood type is shown in the table.
Complete the table.
Blood Type
Total
АВ
Я
38
344
12
138
156
Positive
64
expand button
Transcribed Image Text:r9o1010 Au cimal places) sadle Cx03.9 63 The average score of local students on a college entrance exam is 110 with standard deviation of 15. The distribution is roughly belhaped. Use the empirical rule to find the following percentage. a) The percentage of local student with score above 155. b) The percentage of local student with score between 80 and 125. c) The percentage of local student with score below 95 apter 3 11. A blood bank catalogs the types of blood, including positive or negative Rh-factor, given by donors during the last five days. The number of donors who gave each blood type is shown in the table. Complete the table. Blood Type Total АВ Я 38 344 12 138 156 Positive 64
Expert Solution

Want to see the full answer?

Check out a sample Q&A here
Blurred answer
Students who’ve seen this question also like:
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
Not helpful? See similar books
MATLAB: An Introduction with Applications
marketing sidebar icon
Want to see this answer and more?
Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*
*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: the weight of an organ in adult males has a bell shaped distribution with a mean of 350 grams and a…

A: Solution :  Given :  X : Weight of an organ in adult males              μ = 350grams              σ…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: It is given that the mean and standard deviation are 12 and 3.4, respectively. The sample size n is…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Given ,mean (μ)=14standard deviation (σ)=3.1and ,sample size (n)=25

Q: The weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a…

A: As per guidelines we will only answer first three subparts of the question, please repost the…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Given data,n=22x=13s=3.1   By empirical rule 68% of the data lies within one standard deviations of…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: From the provided information, The estimators of µ and σ are as follows: a) Using empirical rule,…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Given,Mean μ =  14standard deviation σ = 3.3

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: According to the empirical rule, Approximately 68% of data points lies within the one standard…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: The weight of an organ in adult males has a bell-shaped distribution with a mean of 325 grams and a…

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

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Given information- Sample size, n = 24 Sample mean, x-bar = 13 hours Standard deviation, σ = 2.5…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Solution-: Given: μ=13hours,σ=2.6hours We find  a) 68% of the students spend between….hours and…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: a) This will be within +/- 1 sigma   x - 12 = 2.6   x = 12+/-2.6 9.4 and 14.6

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: From the provided information, Mean (µ) = 12 hours Standard deviation (σ) = 3.2 hours

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: From the provided information, Mean (x̅) = 14 hours Standard deviation (s) = 3.3 hours a) Using…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: 68-95-99.7-rule:Let X be an observation from a bell shaped distribution, having mean x-bar and…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: According to the empirical rule,

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: The empirical rule predicts that 68% of observations falls within the first standard deviation (µ ±…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: a. Empirical rule: The probability that the observation under the normal curve lies within 1…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: According to the given information, we have The distribution is normal. Given that, Mean = 12 hours…

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: Given data, Mean is 14 sd is 3.5 n=28 By empirical rule 68% of the data lies within one standard…

Q: For a 4-units class like Statistics, students should spend average of 12 hours studying for the…

A: Click to see the answer

Q: For a 4-unit class like Statistics, students should spend average of 12 hours studying for the…

A: From the provided information, Mean (µ) = 12 Standard deviation (σ) = 3

Q: For a 4-units class like Statistics, students should spend average of 12 hours studying for the…

A: It is given that the distribution is bell shaped that means it is the normal distribution which has…

Q: For a 4-units class like Statistics, students should spend average of 12 hours studying for the…

A: The Empirical Rule states that : About 68 % of the population lies with one standard deviation from…

Q: A random sample of 81 eighth grade students' scores on a national mathematics assessment test has a…

A: Given: Sample size(n)=81Sample mean (x¯)=275Standard deviation(σ)=34

Q: A random sample of 82 eighth grade students' scores on a national mathematics assessment test has a…

A: Solution: State the hypotheses. Null hypothesis: That is, the mean score for the state’s eighth…

Q: A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a…

A: GivenMean(x)=286standard deviation(σ)=40sample size(n)=85α=0.11

Q: A random sample of 80 eighth grade students' scores on a national mathematics assessment test has a…

A: Click to see the answer

Q: A random sample of 83 eighth grade students' scores on a national mathematics assessment test has a…

A: Given that, Sample size n=83 Sample mean score x¯=275 Population standard deviation σ=30

Q: A random sample of 76 eighth grade students' scores on a national mathematics assessment test has a…

A: a. Null hypothesis: µ=260. Alternative hypothesis: µ>260(claim). Correct answer is option (E) b.…

Q: A random sample of 85 eighth grade students' scores on a national mathematics assessment test has a…

A: Given: Sample size, n = 85            Sample mean, M = 278   Assuming, population SD, σ=31 To test…

Q: A random sample of 75 eighth grade students' scores on a national mathematics assessment test has a…

A: Click to see the answer

Q: 5. The weights of adult walleye fish follow a Normal distribution, with a mean of 24 pounds and a…

A: Solution

Q: millimeters. A sample of 11 mature female pink seaperch collected in winter has a mean length of 108…

A: Solution: Given information: n1= 13 Sample size of falln2= 11 Sample size of winter x1= 112  Sample…

Q: The weight of an organ in adult males has a bell-shaped distribution with a mean of 330 grams and a…

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

Q: Suppose that the distribution of scores on an exam can be described by a normal curve with mean 110.…

A: Let X be the score in the exam. Given, X~Nμ=110,σ2. 90 is the 16th percentile. Thus…

Q: The cost of unleaded gasoline in the Bay Area once followed an unknown distribution with a mean of…

A: Given information- Population mean, μ = $4.59 Population standard deviation, σ = $0.10

Q: (b) The weight, in grams, of red beans in a can is normally distributed with mean u and standard…

A: According to our guidelines we can answer only first question and rest can be reposted.

Q: The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and…

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

Q: the distance that students commute to college has a distribution that is approximately unimodal and…

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

Q: The student academic group on a college campus claims that freshman students study at least 2.5…

A: T-test statistic for the population mean is, t=x¯-μ0snwhere,x¯=sample meanμ0=claimed population…

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

A: GivenM=62.60Mean(μ)=63.80standard deviation(s)=2.66sample size(n)=25

Q: 3. For a distribution with a standard deviation of ơ = 20, describe the location of each of the…

A: As per our guidelines we can solve first three subpart and rest can be reposted. Solution-: Given:…

Knowledge Booster
Recommended textbooks for you
  • MATLAB: An Introduction with Applications
    Statistics
    ISBN:9781119256830
    Author:Amos Gilat
    Publisher:John Wiley & Sons Inc
    Probability and Statistics for Engineering and th...
    Statistics
    ISBN:9781305251809
    Author:Jay L. Devore
    Publisher:Cengage Learning
    Statistics for The Behavioral Sciences (MindTap C...
    Statistics
    ISBN:9781305504912
    Author:Frederick J Gravetter, Larry B. Wallnau
    Publisher:Cengage Learning
  • Elementary Statistics: Picturing the World (7th E...
    Statistics
    ISBN:9780134683416
    Author:Ron Larson, Betsy Farber
    Publisher:PEARSON
    The Basic Practice of Statistics
    Statistics
    ISBN:9781319042578
    Author:David S. Moore, William I. Notz, Michael A. Fligner
    Publisher:W. H. Freeman
    Introduction to the Practice of Statistics
    Statistics
    ISBN:9781319013387
    Author:David S. Moore, George P. McCabe, Bruce A. Craig
    Publisher:W. H. Freeman
  • MATLAB: An Introduction with Applications
    Statistics
    ISBN:9781119256830
    Author:Amos Gilat
    Publisher:John Wiley & Sons Inc
    Probability and Statistics for Engineering and th...
    Statistics
    ISBN:9781305251809
    Author:Jay L. Devore
    Publisher:Cengage Learning
    Statistics for The Behavioral Sciences (MindTap C...
    Statistics
    ISBN:9781305504912
    Author:Frederick J Gravetter, Larry B. Wallnau
    Publisher:Cengage Learning
    Elementary Statistics: Picturing the World (7th E...
    Statistics
    ISBN:9780134683416
    Author:Ron Larson, Betsy Farber
    Publisher:PEARSON
    The Basic Practice of Statistics
    Statistics
    ISBN:9781319042578
    Author:David S. Moore, William I. Notz, Michael A. Fligner
    Publisher:W. H. Freeman
    Introduction to the Practice of Statistics
    Statistics
    ISBN:9781319013387
    Author:David S. Moore, George P. McCabe, Bruce A. Craig
    Publisher:W. H. Freeman