Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population is aging, and older people commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 years†. Suppose you are a sociologist in Rock Springs, Wyoming, and a random sample of police files showed that of 33arrests last month, 25were of males aged 15 to 34 years. Use a 1%level of significance to test the claim that the population proportion of such arrests in Rock Springs is different from 70%.   a) What is the level of significance?   b)Find the P-value of the test statistic. (Round your answer to four decimal places.)

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A:

Q: Use a 1% level of significance to test the claim that the population proportion of such arrests is…

A: Given that Sample size n = 33 Number of male arrests, X = 24 Level of significance = 1% = 0.01

Q: Is the national crime rate really going down? Some sociologists say yes! They sat that the reason…

A: H0:P =0.70H1:P≠0.70

Q: Use the above data to prepare a frequency distribution table with 8 classes. Find the measures of…

A: The given data are below94911551417343410021807522361941163558698282812572142319838462219872302595…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: The null and alternative hypotheses are;

Q: A sample of 750 children treated for injuries sustained from motor vehicle accidents was obtained,…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: 2. According to the Centers for Disease Control, the leading causes of death in the United States in…

A: Given:   Sr. No. Observed Frequency (O) Expected proportion (P) 1 79 24% 2 65 23% 3 14 7%…

Q: s the national crime rate really going down? Some sociologists say yes! They say that the reason for…

A: Here, the appropriate test to check whether the population proportion of arrests in Rock Springs is…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Here from the given information we conduct Z test for proprtion.

Q: estions on a our gender? Male Fema times have you cheated on 1 or 2 times 3 or more able of observed…

A: In above research we have to use chi square test of independence. this test tells us about that two…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A:

Q: . It seems that the population is aging, and older people commit fewer crimes. According to the FBI…

A: Let X be the number of males aged 15 to 34 years arrested in Rock Springs N : Total number of male…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: As per guideline expert have to answer first three subparts only.

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Solution: Given information: n= 33 sample size of arrests  x= 21 arrests were males…

Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…

A: Given Information: Sample size n=2253 Sample proportion p^=0.19

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Solution: Given information: n= 35 Sample size of arrests x= 26  arrests males aged 15 to 34 years…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: 1) Computation of test statistic:Here, the appropriate test to check whether the population…

Q: a)Find the P-value of the test statistic. (Round your answer to four decimal places.) b) Sketch…

A: Given that Sample size n = 37 Number of males, X = 27 Level of significance = 5% = 0.05

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Given The data is as follows: α=0.01 Population proportion, p=0.70 The claim is that the pop.…

Q: This is from a recent news article about a study on children using drugs: “The researchers analyzed…

A: GivenAmong the 18 internationally regulated drugs, the average age at first use had increased for 12…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: a) Denote p as the true proportion of arrests of males aged 15 to 34 years in Rock Spring.

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Proportion z_test: If the given sample size is more than 30 or Population standard deviation is…

Q: commit fewer crimes. According to the FBI and the Justice Department, 70% of all arrests are of…

A: The following information has been provided: Hypothesized Population Proportion (p_0)(p0​) =…

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A:

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A:

Q: he FBI and the Justice Department, 70% of all arrests are of males aged 15 to 34 years.† Suppose you…

A:

Q: What is the level of significance? State the null and alternate hypotheses. H0: p = 0.7; H1: p >…

A: Given that Sample size n = 33 Number of arrested males aged 15 to 34, X = 19 Level of significance =…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.