In Exercises 29–36, answer the given questions, which are related to percentages. Percentages in Advertising Continental Airlines ran ads claiming that lost baggage is “an area where we’ve already improved 100% in the past six months.” What is wrong with this statement?

Q: Test the claim about the population mean, p,

A: Given : n=61 , X-bar=28.3  , σ=3.74 , μ0=30 , α=0.04 Here we want to test the claim that μ=30

Q: A research report from an independent-measures study states that there are significant differences…

A: a)From the given information, the degrees of freedom treatment is 3.

Q: 6. In the table above, who had the lowest average expenditure?

A: In this question we have to find the lowest average expenditure.

Q: a) What percent of patients in the treatment group were pain free 24 hours after receiving…

A: Given Data:   Pain Free: Yes Pain Free: No Total Treatment 10 33 43 Control 2 44 46 Total…

Q: 4 8. 12 16 20 24 28 What is the range of the data? What is the median value? What percent of the…

A: We have to find range, median, percent of the data that lies below 8, quarter of the data that has…

Q: A survey item administered at the end of a training program asked participants their opinion about…

A: The given contingency table is, The formula for calculating the expected count is, Calculation of…

Q: 60% of students entering four-year colleges receive a degree within six years. Is this percent…

A: In this case, the claim to be tested is whether the percentage of intramural sports playing students…

Q: The table below show the sample of ages of teenagers start smoking. What is the percent cumulative…

A: Given, Ages Frequency 18 10 19 15 20 5 21 6 22 2 23 4 24 9 25 4

Q: Use the table below and assume a population of 317 million. How much greater is the risk of death…

A:

Q: A survey item administered at the end of a training program asked participants their opinion about…

A: The row and column totals for the given contingency table is, The degree of freedom is,

Q: 5. What percent of the sophomores watch TV for at least 15 minutes per night?

A: Following statistics is given for TV time   Minimum = 0 minutes Q1 = 15 minutes Q2 = 60 minutes Q3 =…

Q: 1. A local news report claims that 40% of the vehicles on the freeways are vans or SUV's. You go to…

A:

Q: 13. If 27 out of 30 people passed a driving test, what percent failed?

A: Given Total people = 30 Passed people= 27 So ,failed people= 30-27 = 3

Q: 1. Reports show that four out of five teenagers asked for a cell phone for Christmas this year. Use…

A:

Q: In general, % of the values in a data set lie at or below the 98th percentile. % of the values in a…

A: A percentile is the share of values that lie below a given score.

Q: Plane crashes An investigation compiled informationabout recent nonmilitary plane crashes…

A: Given data, Cause   Percent   Pilot error   40 Other human error   5 Weather…

Q: In Exercises, we have provided simple data sets for you to practice the basics of finding a…

A: The data is 2, 5, 0, –1. The population size is 4.

Q: a. Which age group typically has the highest rate of obesity? b. Comment on any similarities and…

A: The bar plot has been provided to find out conclusion

Q: In Exercises 29–36, answer the given questions, which are related to percentages. Chillax USA Today…

A: a).It is mentioned that 19% of 1,543women said rarely, if ever.

Q: The market shares of the top five firms In the dishware industry are 17%, 30%, 9%, 14%, and 6%. What…

A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

Q: 8. A research report from an independent-measures study states that there are significant…

A: The given information is as follows: F(3, 48) = 2.95, p < 0.05.

Q: Use the data below that describes a nation’s population to answer the following questions: a) How…

A: The unemployment rate is the percentage of the labor force that is unemployed. It is calculated as…

Q: Example 14. A candidate obtains the following percentages in an examination. English 4070,…

A:

Q: In an attempt to reduce the growth of its population, China instituted a policy limiting a family to…

A:

Q: How many people do we need to sample? We would like to be within 3 percent of the actual answer and…

A:

Q: in the highest 2.5 percent eat?  What is the z-score

A: Given that 2.5% of the highest area present in the data. That is, P(Z>z)=2.5%=0.025…

Q: In general, % of the values in a data set lie at or below the 74th percentile.

A: Solution: 74th percentile means that 74% of the data below that value and of 100–74=26% of the data…

Q: 1) What is the high score on the test? 2) What percent of the class scored above a 72? 3)…

A:

Q: What percentage ) What percentage of the people do not smoke? of the people do not exercise…

A: The data is given by   Smoke Do not smoke Total Exercise regularly 4 21 25 Do not exercise…

Q: a) What is the minimum relative frequency of the number of heads for the first 10 tosses? 0 of b)…

A: b) Maximum relative frequency of the number of heads for the first 10 tosses is 1

Q: 7. What proportion of time was spent eating and drinking?

A: Given Data is : Sleeping = 8.6 At school = 6.3 Socializing, Relaxing = 3.6 Other = 1.6 Travelling /…

Q: Part B Which teacher was voted favorite by the greater number of students in the fifth-grade class?…

A: In the fifth grade Class, Total Number of students = 48 Total Number of girls = 25 Total Number of…

Q: 64% of students entering four-year colleges receive a degree within six years. Is this percent…

A: We have find hypothesis..

Q: The results of a nationwide aptitude test in Mathematics are normally distributed with μ=80 and…

A:

Q: The Investment Research Institute reported in its Mutual Fund Fact Book that the number of mutual…

A: Given,         The no.of mutual funds increased         from 5665 in 1999 to 7903 in 2009.

Q: Number of women in Makati City who died from lung cancer in 2004 estimated revenue (in peso) in…

A: We have given that the statement about to the proportion.

Q: In Exercises, we have provided simple data sets for you to practice the basics of finding a…

A: The data is 1, 9, 8, 4, 3. The population size is 5.

Q: (d) What percent of these Tampa, FL voters who identify themselves as conservatives are also in…

A:

Q: 1. A report in a national magazine estimated that 39 percent of. . of their wives' eyes. Bill…

A: Let X be the number of American husbands who do not know the color of their wives' eyes. A sample of…

Q: Approximately what percent of students own somewhere between 30 and 50 CDs? O 50% O 4% O 20% O 25%

A: It is given that the statistical five number of summary of the number of CDs owned as reported by…

Q: answer a A. the national percentage of automobile accident fatalities which are alcohol related is…

A:

Q: In a recent survey, a group of people were asked if they were happy or unhappy with the state of the…

A: Given data:   Happy Unhappy Total Republican 152 98 250 Democrat 104 146 250 Total 256 244…

Q: Oxygen consumption was measured in twelve individuals while they sat with their eyes closed…

A: X Y D=Y-X D-Dbar (D-Dbar)2 6.1 7.2 5.7 6.4 5.8 6.2 5.4 6.7 5.4 4.2 4.0 4.1…

Q: How could the survey question "Have you ever had a drink of alcohol?" be revised to obtain a valid…

A: Introduction :- We are given one survey question. We have to revise these questions to obtain valid…

Q: A market researcher wishes to determine the proportion of American consumers who shop online for…

A:

Q: A research report from an independent-measures study states that there are significant differences…

A: Given, A research report from an independent-measures study states that there are significant…