A marketing research company is estimating the average total compensation of CEOs in the service industry. Data were randomly collected from 18 CEOs and the95%confidence interval for the mean was calculated to be($2,181,260,$5,836,180). What additional assumption is necessary for this confidence interval to be valid? The population of total compensations of CEOs in the service industry is approximately normally distributed. The sample standard deviation is less than the degrees of freedom. The distribution of the sample means is approximately normal. None. The Central Limit Theorem applies. ( don't hand writing solution)

A marketing research company is estimating the average total compensation of CEOs in the service industry. Data were randomly collected from 18 CEOs and the95%confidence interval for the mean was calculated to be($2,181,260,$5,836,180). What additional assumption is necessary for this confidence interval to be valid? The population of total compensations of CEOs in the service industry is approximately normally distributed. The sample standard deviation is less than the degrees of freedom. The distribution of the sample means is approximately normal. None. The Central Limit Theorem applies. ( don't hand writing solution)

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

See similar textbooks

Related questions

Q: when you read your college textbooks, you may sometimes find errors in them. if you track the number…

A: A variable is a characteristic that is being measured.

Q: Historically, the final exam for an introductory statistics course has had a 75% pass rate. Suppose…

A: From the provided information,p = 0.75n = 250

Q: If X₁ and X₂ are independent rv's then Px₁+x₂ (t) = x₁(t)¶x₂(t) More, generally for independent rv's…

Q: Bob is playing a game by rolling a fair die. If he rolls a '2. Bob win $200 200. If it is not a '2',…

A: The formula used to calculate the standard deviation is,

Q: The number x of people entering the intensive care unit at a particular hospital on any one day has…

A: (a) The number of people entering the intensive care unit on a particular day follows a Poisson…

Q: A sample of size n=10 is drawn from a population. The data is shown below. 115.8 96.6 96 80.6…

A: 115.896.69680.6106.9115.8115.879.485.692.7n=10

Q: Below is a decision table for Gregor's Tennis School. Director Gregor Anderson is considering…

A: The given data is as follows:Decision tableState of natureAlternativesHigh demand Moderate demand…

Q: logist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote part of the Grand…

A: From the information, given thatThe claim is to test whether the mean weight of the birds in this…

Q: What are the hypotheses for testing to see if a correlation is statistically significant? Hor=0:…

A: Null hypothesis:The null hypothesis defined as whether there is no difference in the test or not and…

Q: Given the mean to be 44.88 and the standard deviation to be 0.295 find the value for the given table…

A: we have given a mean and standard deviation as:mean =44.88 and standard deviation =also we have…

Q: Suppose an economics program is interested in determining the average number of students who go on…

A: The question is about confidence interval.Introduction :1 ) Confidence interval is mainly depends…

Q: Bob is playing a game by rolling a fair die. If he rolls a 2. Bob win $200. If it is not a '2', he…

A: A fair die is rolled by Bob.If he rolls a 2, he wins $200.If he doesn't roll a 2, he loses $20.

Q: The royal family of Themyscira must produce a female offspring. If their first child is female they…

A: In this case, each of the offspring has the only option of being "a female child" (defined as…

Q: a) Determine the probability a moviegoer selected at random rated Joker as "Very good" or better…

A: Given that,The data on gender and rating is given below.GenderMaleFemaleTotalFantastic342761Very…

Q: SAT scores:The mean mathematics SAT score was 505, and the standard deviation was 114. A sample of…

Q: Suppose a new drug is intended to improve walking distance in patients with Parkinson Disease A…

A: The data shows the patients walking distance in feet before and after trying the drug for 9 weeks.

Q: The following data represents the age of 30 lottery winners. 24 28 28 33 35 36 39 41 42 45 45 45 46…

Q: A New York Times article reported that a survey conducted in 2014 included 36,000 adults, wit…

A: Margin of error E=0.01p=0.5 (as this is the most conservative estimate)Z-score for 90% confidence…

Q: Exam scores for 29 students are shown below. Calculate the percentile for a student whose exam score…

A: 54,55,57,59,64,64,68,68,69,70,71,72,73,74,74,78,80,84,85,90,90,92,92,93,93,95,97,98,100sample…

Q: What is the average number of errors per order? Do not round intermediate calculations. Round your…

A: Here the data is given on number of errors for sample size of 40.Sample size To find the average no.…

Q: How much do wild mountain lions weigh? Adult wild mountain lions (18 months or older) captured and…

A: The given data is as follows:69, 104, 125, 125, 60, 64

Q: Refer to the accompanying scatterplot. The four points in the lower left corner are measurements…

A: Given the data asxy21223132999101091010

Q: In a student's Spanish class, the final grade is based on six categories. The categories, grades,…

A: The grades based on six categories are given

Q: Using the image attached please assist with the following: Also please show all working so I can…

A: The data is defined below as follows: From the information, given that

Q: A space shuttle is made up of 795 "criticality 1" items. Each "criticality 1" item must have 99.99%…

A: Given :n=795 ,p=0.0001therefore (1-p)=1-0.0001 = 0.9999As there are two outcome fail and not fail…

Q: Age discrimination: The following table presents the numbers of employees, by age group, who were…

A: H The people in all age groups are equally likely to be promoted.H The people in all age groups are…

Q: Dylan wants to determine a 90 percent confidence interval for the true proportion of high school…

A: The random variable is who attend their home basket ball games.We have to find the sample size.This…

Q: You are studying whether different species of birds accumulate mercury in their systems at different…

A: Question 5 : N = 450 Bird species = 4 Mercury levels = 3 ( non toxic , sub -lethel , lethal )We have…

Q: Two cards are drawn at random from an ordinary deck of 52 cards. Determine the probability that both…

A: From the provided information,Total cards in ordinary deck = 52Ace cards = 4Two cards are drawn at…

Q: Jocelyn compiled data on the number of hours students work per week the summer after senior year.…

A: We know that,Range = maximum - minimumHere, Range = 17 Minimum number of hours = 23

Q: Adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches. Find the…

A: It is needed to find the z-score of a man 62 inches tall.

Q: 1. If Y has a gamma distribution with shape a and rate its PDF is fy (y): ya-¹e-λya I(a) for y > 0.…

Q: 2. Find the variance and standard deviation. Class Limits Frequency (f) 4 69-77 78-86 87-95 96 - 104…

A: From the provided information, Class LimitsFrequency (f)69-77478-86687-951196-1048105-1135114-1229

Q: Select the answer for each. Suppose the pdf of X is f(x) = for a3, and 0 otherwise. a) Find the…

A: The question is about probability density function.Given :To find :a ) Value of cb ) E ( X )

Q: 1. How many yen could you get per dollar at the earliest date shown on the chart? Explain. 2. How…

A: The earliest date is on the extreme left corner of the given chart i.e., about 1970. And it is…

Q: Use the below to plot on a line graph electronically 13 SAMPLES 87SR/86SR 87RB/86SR R5945A…

A: Given the data as 13…

Q: Source Model 6617230.87 Residual 26013137.2 Total price appinc _cons SS O (1988, 505.45) O (1987,…

A: The objective is to obtain the appropriate value of A and B that is given in the regression output…

Q: Scores on the ACT college entrance exam follow a normal distribution with mean 21 and standard…

A: Mean()=21standard deviation()=5z-score=-0.6

Q: Assuming the coin is biased, and the probability of a Head is 0.9, work out the theoretical mean and…

A: A single biased coin is tossed once.

Q: 4. 10 adults were randomly sampled and asked how many years of education they have. The sample mean…

A: n=10,x¯=15,s=3,C.I=95%=0.95

Q: Let X denote the amount of space occupied by an article placed in a 1-ft³ packing container. The pdf…

A: The pdf of X is given as:f(x)=90* x2(1-x)

Q: Remix Bob is playing a game by rolling, а fair die. If he rolls a '2. Bob win $200. If it is not a…

A: The game involves a fair die. For a rolled face of "2", $200 is won.For a rolled face of "not 2",…

Q: Consider the following time series data. Quarter Year 1 Year 2 1 3 5 2 3 4 1 4 6 2 6 8 Year 3 6 5 7…

A: Since you have posted a question with multiple subparts, we will provide solution to the first three…

Q: A data set includes weights of garbage discarded in one week from 62 different households. The…

A: The correlation shows a relationship between 2 variables.

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A drug is…

A: Given:Sample size (n) = 4883From which 139 developed the adverse reaction of nausea that is x =…

Q: What is regresstion in business statistics?

A: In business statistics, regression refers to a statistical analysis method used to quantify and…

Q: When extreme values are present in a set of data, which pair of the following descriptive summary…

A: Extreme values are values that are significantly different from the other values in a data set.

Q: Given P(B) 0.12, what is P(B)? 00 00.12 00.45 00.5 00.55 01 O None of the Above.

A: The given probability is .

Q: Ten year old girls, the Mean is 54.4, the standard deviation 2.7, 95 percentile in height. How tall…

A: Let be the height of ten year old girl.The mean: The standard deviation:

Q: 1. There are 12 sections of Statistics 1 in a state university. Listed below are the number of…

A: 23,43,56,43,23,56,43,23,15,14,38,44sample size(n)=12

Question

The population of total compensations of CEOs in the service industry is approximately normally distributed.

The sample standard deviation is less than the degrees of freedom.

The distribution of the sample means is approximately normal.

None. The Central Limit Theorem applies.

( don't hand writing solution)

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Expert Solution