A. An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the probability that the sum of the 95 values is less than 7,300. (Round your answer to four decimal places.) B. An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the sum that is 1.4 standard deviations below the mean of the sums. (Round your answer to two decimal places.) C. The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly. Find the probability that the sum of the 40 values is greater than 7,450. (Round your answer to four decimal places.)

A. An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the probability that the sum of the 95 values is less than 7,300. (Round your answer to four decimal places.) B. An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the sum that is 1.4 standard deviations below the mean of the sums. (Round your answer to two decimal places.) C. The distribution of results from a cholesterol test has a mean of 180 and a standard deviation of 20. A sample size of 40 is drawn randomly. Find the probability that the sum of the 40 values is greater than 7,450. (Round your answer to four decimal places.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.4: Distributions Of Data

Problem 22PFA

See similar textbooks

Related questions

Q: Question 2 (This is Part A of the question) A) The table below shows the probability distribution o...

A: In the given problem we have given that the probability distribution of random variable X. X 2 3 ...

Q: A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed...

A: For the given data Find 98% C.I

Q: patients revealed that 45 patients were misdiagnosed with indigestion instead of a heart attack. His...

A: Solution: Given information: p=7%= 7100=0.07q=1-p= 0.93x= 45n= 950p^= xn=45950=0.0474α=0.05

Q: ple defective. In a random sample of 120 items, the defect rate is 4.99%. At the 1% level significan...

A: Solution: Given information: n= 120 Sample size p^= 0.0499 Sample proportion p= 0.04 Population pr...

Q: When testing the hypothesis (at the 5% level of significance) that the variance of the amount spent ...

A: In a sample of 50 business trips taken by employees in the HR department, a company finds that the a...

Q: 1. Pedro is studying the effect of sleep on social media use. He instructed his participants to slee...

A: Note: As per the request of the student, the answer is provided for question 1.

Q: n the following graph, if the light blue colored sector contains 21 % of observations and the total ...

Q: smart phone manufacturer is interested in constructing a 90% confidence interval for the proportion ...

A: Given that n=1700, X=84 90% confidence interval C.I= (p ± Zc*√(p(1 - p)/n))

Q: uppose 4-year- unsu day unsupervised reas, considered safe. Suppose that the standard deviation is 1...

A: Given, Mean = 3 Standard deviation = 1.8

Q: You are the operations manager for an airline and you are considering a higher fare level for passen...

A: Margin of error (E) = 4.5% = 0.045Significance level (α) = 1 - 0.90 = 0.10

Q: Binomial formulai

A: Here we use the binomial distribution.

Q: Supp_ose that, in a cert_ain sta_ge, only 60% of_ all dri_vers re_gula_rly we_ar a seat_be-lt whi_l...

Q: The amount of calories consumed by customers at Little Buffalos buffet is normally distributed with ...

A: Given that X~N(μ= 2885 , σ= 651 ) μ= 2885 , σ= 651 , n = 47

Q: Exhibit 12-26 The following shows the number of individuals in a random sample of 96 adults who indi...

A: Given that Number of row=2 Degree of freedom df=Number of row - 1

Q: prob

A: Here use exponential distribution

Q: A multiple-choice examination consists of 85 questions, each having possible choices a, b, c, and d....

A: Given: Sample size (n)=85Probability (p)=0.25 Here we use Normal approximation to binomial with corr...

Q: A brewery produces regular beer and a lower-carbohydrate "'light" beer. Steady customers of the brew...

Q: The following model allows the return to education to depend upon the total amount of both parents' ...

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per th...

Q: 4. Mr. Zamora, an admission officer in a university would like to estimate how long will it take to ...

Q: Below is some of the regression output from a regression of the amount rental houses on an island re...

A: the estimated equation is, Price = 1474 + 0.31*Size + 1885*View + 0.10*(Size*View) #for size = 3900,...

Q: The patient recovery time from a particular surgical procedure is normally distributed with a mean o...

Q: In a sample of 61 business trips taken by employees in the HR department, a company finds that the a...

A: Let µ1 denote the average amount spent on trips taken by the HR department and µ2 denote the average...

Q: Q2- Below is the data for the scores of 70 students in the final exam for the descriptive statistics...

A: Introduction: Relative frequency: In the frequency distribution the relative frequency gives the id...

Q: LASral Directions: In answering the exercises in the Learning Activity Sheet (LAS), please be remind...

A: Hi! Thank you for the question as per the honour code, we’ll answer the first question since the exa...

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally...

A: Let Z be the random variable from standard normal distribution with mean = 0 and standard deviation ...

Q: Below are the jersey numbers of 11 players randomly selected from a football tearn. Find the range, ...

Q: the following equations were estimated: price) = 11.71 – 1.043 log(nox), n = 506, R? %3D price) = 9....

A: *Answer:

Q: 16. When applying the Law of Large Numbers to a binomial distribution, which of the three variables ...

A: when applying law of large number to a binomial distribution then which of the three variable n,x an...

Q: The sugar content of the syrup in canned peaches is normally distributed, and the variance is though...

Q: A sample of size 5 will be drawn from a normal population with mean 61 and standard deviation 13.

Q: Find the probability that the time it takes a passenger to travel from the main terminal to the conc...

A: Passenger congestion is a service problem in airports. Trains are installed within the airport to re...

Q: Р(0 <Z < 2.17) b. Р(0 $Z < 1) а.

A: Let Z be the random variable from standard normal distribution with mean = 0 and standard deviation ...

Q: Consider testing the hypotheses Ho: 0 =0 versus H1: 0 = 1 based on a random sample of size n = from ...

Q: 7) In a sample of 50 business trips taken by employees in the HR department, a company finds that th...

A: Hypothesis Testing Hypothesis testing is a statistical method that uses the sample data to evaluate...

Q: 11. Three training methods are employed and then compared to determine if there are differences in t...

A: There are 3 independent samples which are 3 methods. We have to test whether the training methods yi...

Q: 2. A Type Il error is committed when A. we reject a null hypothesis that is true. B. we retain a nul...

A: The type II error is the probability of fail to reject the null hypothesis when alternative hypothes...

Q: Most exhibition shows open in the morning and close in the late evening. A study of Saturday arrival...

Q: The data set below on the left represents the annual rate of return (in percent) of eight randomly s...

Q: Test for Potassium (Normal Value: 3.5-5.5 mmol/L) Day Result 1 3.5 3.6 3 4.5 4 3.6 5 4.9 4.5 7 3.8 M...

A: For the given data, we need to find: Day Result 1 3.5 2 3.6 3 4.5 4 3.6 5 4.9 6 4.5 ...

Q: Find the rejection region for each hypothesis test based on the information given (make a graph and ...

A: GivenH0:μ=121Ha:μ>121α=0.01n=39standard deviation(σ) is known

Q: ory test, the test subjects are shown 625 objects and are asked after two hours to name - 80% of the...

A: The test Subjects are shown 625 objects, N=625 the test subject remembers 80% of the objects after t...

Q: 80. The standard deviation of the population is known to be $66. Assume that the population is inite...

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 100 adul...

A: Given: Sample size, n=100 Number of adults having kids, x=84

Q: 43 - 46. In a given hour, what is the probability that 9 to 10 jeepneys will pass through the design...

Q: 14. A researcher obtains a t = 2.25 for a repeated-measures study using a sample of n = 15 participa...

A: It is given that Test statistic t = 2.25 Sample size n = 15

Q: You work as a manager in the admission department of company. You were asked by your department head...

A: Frequency is the count of the individual observation. It can be tabulated as discrete frequency dist...

Q: The median starting salary for new law school graduates is determined by: log(salary) = Bo+B,LSAT+B,...

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

Q: What are the options to reduce risk selection in Bismark systems? Choose all that apply. Risk adjust...

A: Bismark systems - Social health insurance system. Main motive of system - control of health expendi...

Q: Question 3 If you are doing a study involving the SHS students of DLSMHSI and decided to get a sampl...

A: There are two types of sampling method: Prob. sampling Non-prob. sampling

Q: if we add the seventh class, what it would be and what is its midpoint? 5.5 7.5 9.5 11.5 13.5 d 15.5...

Question

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

Expert Solution