In order to increase employment, France mandated that all companies with 20 or more employees reduce the workweek to 35 hours. The economic impact of this shortened workweek policy was analyzed. In the year prior to the 35-hour-workweek law, unemployment rate in France was at 12%. Suppose that in a random sample of 500 French citizens (eligible workers) taken several years after the law was enacted, 53 were unemployed. a. Please find a 90% confidence interval for French unemployment rate after the enactment of the 35-hour-workweek law.  b. Conduct a test of hypothesis to determine if the French unemployment rate dropped after the enactment of the 35-hour-workweek law. Please test with 0.05 level of significance.

Q: t wishes to determine whether there is evidence that average family income in a community exceeds…

A: We see that, The null hypothesis states that average family income is equal to $25000 whereas the…

Q: Measures of central tendency alone are insufficient to completely describe a sample because: a. in…

A: The measures of central tendency along with the measures of dispersion are useful statistics in…

Q: Toastmasters International cites a February 2001 report by Gallup Poll that 40% of Americans fear…

A:

Q: a. What is the expected number of children that should report cognitive impairment related symptoms…

A: 4. A research program is concerned about the potential exposure to hazardous lead levels at a…

Q: A researcher states that it is 95% likely that between 900 and 1,100 students at a Southern…

A: Solution. Given a researcher states that it is 95% likely that between 900 and 1,100 students at a…

Q: Additional Problem: In a Gallup Social Series Poll on Crime conducted last October with 691 female…

A: Given : Claim : fewer than 50% of female adults believed that crime increased in the area in which…

Q: mpling process is repeated many time sers who use this social media platfor

A: Option b) is correct.   The estimate is given by p^ =0.458 + 0.5282 = 0.52

Q: Give a p-value for the proportional odds assumption. Give your answer to four numbers after the…

A: Ordinal logistic regression is a statistical technique used when the response variable is ordinal,…

Q: The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in…

A: The number of sample is estimated using the confidence interval is calculated using the formula…

Q: Given the following outcomes from a random sample of 15 people's weekly expenditure on fruit: 16;…

A: Given data in assending order,       2, 3, 6, 7, 7, 7, 7, 8, 8, 10, 10, 12, 13, 14, 16 Using formula…

Q: If your goal is to make the reliability of the server equal to 99.999% (=0.99999), how many backup…

A: Given Information: Reliability of the module=90% =0.9 Failure rate = 10% = 0.1

Q: *** a. Use the sample data to construct a 90% confidence interval estimate of the percentage of cell…

A: A study of 420,041 cell phone users found that 0.0314% of them developed cancer of the brain or…

Q: Example: Compute the 90%, 95%, and 99% confidence intervals for the population mean credit card…

A: The summary statistics for the population mean credit card balances is provided as; The confidence…

Q: (a) What is the minimum number of students that will need to be observed to get a margin of error of…

A: (a)   Obtain the sample size of a no preliminary estimate for p.   The formula of sample size is,…

Q: lock b.59 autism It is estimated that in the general population about 9 out of every 1000 or 0.009…

A: The research question for this study is 99% confidence interval for the proportion of siblings of…

Q: Consider college officials in admissions, registration, counseling, financial aid, campus ministry,…

A:

Q: Use the technology of your choice to obtain the required Tukey multiple-comparison confidence…

A:

Q: 1.A certain association collects data on college endowments. In a specific year, its report included…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: Estimating income tax based on dividends is also not​ straightforward, due in part to​ Australia’s…

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

Q: 1. School wants to know if academic performance is dependent on living arrangements of the students?…

A: It is needed to test whether the academic performance is dependent on living arrangements of the…

Q: 1. In a recent study, the researchers want to find the information about the percentage of adults…

A: Given datan = 3026proportion of people who prefer to get their news online = 0.38

Q: A study sponsored by the American Savings Education Councilt included data from a survey of 1752…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: YAn a survey of 458 random households, people take pride in discussing hen methods of environmental…

A: The provided information is n=458x=236α=0.05p^=xn=236458p^=0.515 The critical value is zc=1.96…

Q: In order to answer the question, "Is air pollution worse in Washington or Baltimore?", what kind of…

A: Whenever you're deciding which statistical procedure to follow keep the concept of dependent and…

Q: Which of the following is most likely to be a repeated-measures design?   a. A study comparing…

A: Identify the correct option that represents an repeated measures design.   The correct option is…

Q: 12. The purpose of a confidence interval is to: a. test for significant differences. b. quantify the…

A:

Q: A researcher examined the extent of cooperation among kindergarten children. She unobtrusively…

A:

Q: Done 令@100% A learn.hawkeslearning.com Question 1 of 5, Step 2 of 3 1/15 Correct A psychology…

A:

Q: Suppose that you are responsible for making arrangements for a business convention and that you have…

A: The random variable price of a hotel room follows normal distribution..There are two independent…

Q: Four scenarios of statistical studies are given below. Decide which study uses a population…

A:

Q: In a past presidential​ election, 37,979,113 people voted for Candidate​ A 37,758,117 for Candidate​…

A: a. In the past presidential​ election, 37,979,113 people voted for Candidate​ A; 37,758,117 for…

Q: A certain coffee packing company has three packing lines with the following production volumes of…

A:

Q: One of the more popular statistics reported in the media is the​ president's job approval rating.…

A: As per the informationProportion of the population who approve of the job that the sitting president…

Q: organization monitors many aspects of elementary and secondary education nationwide. Their 2000…

A: It is given that the statement about to the null and alternative hypotheses.

Q: type of statistical study (observational study or experiment) should beconducted to answer the…

A: A controlled experiment is a procedure that plans the experiment, conducts, analyzes, and interprets…

Q: 3. The Pew Internet and American Life Project conducted a poll between Oct 23 and Nov 19, 2006, in…

A: Given information X = 598, Sample size (n) = 935

Q: Listening to music has long been thought to enhance intelligence, especially during infancy and…

A: From the provided information, Sample size (n) = 8 Sample mean (x̅) and sample standard deviation…

Q: The National Center for Educational Statistics recently chose a random sample of 100 newly graduated…

A: a)  The formula for Confidence Interval  estimation is: μ = M ± t(sM) where: M = sample meant = t…

Q: You may need to use the appropriate appendix table or technology to answer this question. A survey…

A: