dults aged 18 years old and older were randomly selected for a survey on obesity. Adults are considered obese if their body mass index (BMI) is at least 30. The researchers wanted to determine if the proportion of southern women who are obese is less than the proportion of southern men who are obese. The results are shown in the table below. Test at the 1% level of significance.   Number who are obese Sample size Men 42,773 155,525 Women 67,176 248,775 a.State the distribution to use for the test. (Round your answers to five decimal places. b. What is the test statistic c. Conduct a Hypothesis Test

Q: In each part, give the value of the standardized statistic (z-score) for the sample proportion.…

A: We have,  Z = p^ - pp(1-p)n

Q: Chatterbug, a social networking site on the Internet, would like to determine if gender is related…

A: Here we are given that Chatter bug a social networking site on the internet would like to determine…

Q: Find the third quartile for the average number of Facebook friends.

A: Let X denote the average number of Facebook friends users. Given that X ~ N(mean=122, SD=43) Let Q3…

Q: If a hurricane was headed your way, would you evacuate? The headline of a press release states,…

A: Sample size = n = 4625 Sample proportion = p̂ = 0.32

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: There are 4 independent samples which are ABC, CBS, NBC and independent homes. The number of counts…

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A:

Q: A random sample of 1952 Texas government employees were selected for a study on race. The table…

A:

Q: An insurance company would like to determine the proportion of all medical doctors who have been…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: which statistic is equivalent to dividing the sum of scores equally across all members of a sample

A: The statistic measures the characteristics of samples to estimate the population.

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: (a) Response variable or dependent variable: A variable that is changed due to the impact of the…

Q: a. Out of a random sample of 74 birds, how.many would you expect to live longer than 9 years? b.…

A: Let X = number of years a bird lives.  Then, X ~ Exponential (0.125) Thus,  f(x) = 0.125e-0.125x .

Q: To study the mean blood pressure of all people in her state, Christine samples the population by…

A: Convenience sampling can be defined as the method of sampling in which the researcher selects the…

Q: A random sample of n, = 154 people ages 16 to 19 were taken from the island of Oahu, Hawaii, and 11…

A: Given Information: Sample 1: Sample size n1=154 x1=11 Sample 2: n2=131 x2=7 (a) Level of…

Q: In the following question, I would like number 1 to be answered   An epidemiologist found five cases…

A: 1.From the provided information, the table can be obtained as:

Q: Past records indicate that 45% of students eat breakfast while driving to school. A campaign to…

A: Solution: State the hypotheses Null hypothesis: That is, the proportion of students eats breakfast…

Q: For the exam scores. Class MT1 MT2 Sample size, n 14 13 Mean scores 75.3 826

A: Statistics Lecturer is testing the mean score for 3 classes Class MT1 MT2 MT3…

Q: Twenty years ago, 46% of parents of children in high school felt it was a serious problem that high…

A:

Q: SHOP AT WORK, LOSE YOUR JOB?  CareerBuilder.com conducted a survey of 2245 employers asking if they…

A: Given Information: Sample size n=2245 x=257 A manager at a local recruiting agency claims that more…

Q: Which statistical test should she conduct?

A: We need to identify suitable statistical test for given situation

Q: Why a sample size of n=100 is more likely to have a percentage of pop songs closer to the population…

A: Sample of size 32 or greater is consider as large sample .

Q: 3. A Gallup poll conducted in 2010 found that 494 of 1050 adult Americans believe it is the…

A: Given that  Sample size n =1050 Favorable cases x =494 Sample proportion p^=x/n  =494/1050 =0.4705

Q: 1. A Pew Poll taken in 2010 surveyed 830 randomly selected people ages 18 – 29, and found that 166…

A:

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A: From the provided information, Sample size (n) =750 and p0 = 0.54

Q: In the Star and Tribune newspaper, there is an article entitled “1 in 8 school buses fail tests.”…

A: The number of buses in the sample (n) is 200.

Q: In a poll of 1000 randomly selected voters in a local election, 415 voters were against school bond…

A: #Ans -  Given,           In a poll of n = 1000 randomly selected voters in a local election, x = 415…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A:

Q: The city of Cleansburg has 8325 registered voters.  There is an election for Mayor of Cleansburg,…

A: Total registered voters = 8325 Total randomly selected voters = 680 Out of selected voters Votes for…

Q: Find the 5th Deciles or D5 of the following test score of a random sample of ten students: 35, 42,…

A:

Q: According to the 2005-2006 National Pet Owners Survey, only 16% of dogs were adopted from an animal…

A:

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: In order to obtain the regression equation, first perform regression analysis for the data.

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: The value of p0 is 0.52 and the sample size n is 800.

Q: A survey was given to 18 individuals. One question asked about the amount of time the individual…

A: The data in the ascending order is 14, 18, 20, 22, 22, 34, 40, 46, 46, 46, 48, 56, 60, 62, 62, 64,…

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A: Given n=850 P0=0.54 so n*P0(1-P0) = 850*0.54*(1-0.54) =211.1

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A:

Q: Twenty years ago, 54% of parents of children in high school felt it was a serious problem that high…

A:

Q: Twenty years ago, 57% of parents of children in high school felt it was a serious problem that high…

A: From the provided information, Population proportion (p0) = 0.57 Sample size (n) = 700 and x = 244

Q: An Internet survey asked 525 Facebook users whether the amount of time they spent using Facebook was…

A: From the provided information,

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: Given : n = 700 p = 0.52

Q: An Internet survey asked 525 Facebook users whether the amount of time they spent using Facebook was…

A:

Q: Which type of study is best to use to determine the favorite TV show on a Monday night?…

A: We have to find the type of study

Q: A study was conducted to see of airbags save lives. The table below lists the results from a simple…

A: The payoff table is a representation of data where one can easily find the conditional distribution…

Q: Twenty years ago, 53% of parents of children in high school felt it was a serious problem that high…

A: 10.2.21-T

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 PM. to 9:00 PM.…

A: We have to find Chi-square test statistic.  χ2=∑Oi -Ei2Ei Where , Oi is observed frequency. Ei is…

Q: It is generally believed that nearsightedness affectsabout 12% of all children. A local elementary…

A: Therefore, the sampling distribution of the proportion of incoming kindergarteners is nearsighted…

Q: In a statistics class, 10 scores were randomly selected, and the following results were obtained:…

A: From the provided information, The data values are 74, 73, 77, 77, 71, 68, 65, 77, 67, 66 Sample…

Q: During the first 13 weeks of the television season, the Saturday evening 8:00 P.M. to 9:00 P.M.…

A: By using Pearson's chi-squared test, PA = prop. of ABC viewersPC = prop. of CBS viewers PN = prop.…

Q: Define a test procedure, based on sample data, for deciding whether to reject H0?

A: Explanation: t-test for population mean:

Q: PracticE the legalization of marijuana. Among the Democratic voters surveyed, 158 of the 200 people…

A: 2 proportion z test is applicable

Q: The city council of Pine Bluffs is considering increasing the number of police in an effort to…

A: Solution: a) Number of crimes is the dependent variable in the model. Dependent variable: Number of…

Q: Twenty years ago, 52% of parents of children in high school felt it was a serious problem that high…

A: using the given data fill all the blanks required