State the null hypothesis H0 and the alternative hypothesis H1 Find the z-test value find the critical value Can we conclude that more than 55% of high school students in the United States use computers for educational purposes? Yes or No?

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: A) We have just conducted a study examining how much math anxiety students experience after taking a…

A:

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: Claim: The proportion of people over 55 who dream in black and white is greater than the proportion…

Q: Of 2,872 individuals who had received radiation treatment in childhood because of enlarged thymus,…

A: Given information: The data represents the observed counts of the categories treatment and cancer.

Q: Report the test statistic. Round your answer to TWO decimal places.  You may use the observed…

A: It is given that  Favourable cases, x = 777 Sample size, n = 2101 Population proportion, p = 34.5% =…

Q: 4. An article included data from a survey of 2500 hiring managers and human resource professionals.…

A: a) This sampling distribution can be considered normal under the central limit theorem, which states…

Q: A restaurant chain would like to measure the proportion of customers who are generally satisfied…

A: During a 1-week period, 147 customers were surveyed and 93% of them reported as being either…

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: The given hypothesis is H0:p1=p2 versus H1:p1>p2.

Q: of Male Adolescent (aged 15 to 19). The respondents were randomly assigned to answer the survey…

A: We see that males were asked questions about their sexual behavior in two different ways, i.e,  A…

Q: Sierra College students enrolled in an online Elementary Statistics course were asked to participate…

A: Given:   Desktop computer 31 laptop computer 113 Smart phone 6 Tablet 3 Total 153

Q: 2. Researchers want to find out what percent of the US labor force is female. Of the 10,000…

A: We want to find appropriate assumptions,  null hypothesis,  alternate hypothesis and  standard error…

Q: According to the U.S. Census Bureau, 11% of children in the United States lived with at least one…

A:

Q: How to Assign Subjects in random assignment?

A:

Q: a survey conducted by a website, employers were asked if they had ev were dressed inappropriately. A…

A: Answer The population proportion [p] = one-third = 1/3 ~ 0.3333The favorable cases [x] = 973The…

Q: In the US, 45.4% of all people have type O blood, 39% have type A blood, 11.9% have type B blood and…

A:

Q: Construct a confidence interval to estimate the proportion of U.S. adults who ate healthy…

A: HERE AS PER guidelines  I HAVE CALCULATED 3 SUBPARTS PLZ REPOST FOR REMAININING    According to a…

Q: In a survey of 1,000 women aged 22 to 35 who work full time, 555 indicated that they would be…

A: A survey of 1,000 women aged 22 to 35 who work full time were considered in which 555 indicated that…

Q: 1.     Your professor has told you that 60% of the people who take introductory statistics go…

A: a. One sample proportion test should be used.

Q: We want to learn about the country of origin, gender, NYC borough of residence, ethnicity, and age…

A: A sample is a subset of a population, whereas a population is a full set that represents every…

Q: Use these results from a USA Today survey in which 510 people choseto respond to this question that…

A:

Q: Students in a statistics class at Penn State were asked, “About how many minutes do you typically…

A: 1) The assumptions necessary for performing the two-sample t-test, such that the results obtained…

Q: Close Confidants and Social Networking Sites A study1 has been conducted in which 2006 randomly…

A: Given Sample size =n1=947 Sample size =n2=1059 X1bar=2.5 X2bar=1.9 Sample standard deviation s1=1.4…

Q: 1.      The mean work week for a new engineering company is approximately 60 hours. A recently hired…

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

Q: A researcher is interested in the impact of joining a weight loss program in the past 12 months on…

A: A research is carried out to find out the conclusion related to the objectives of the study.…

Q: Researchers wish to test whether marijuana use among full-time college students aged 19-22 at a…

A: 1) The appropriate Null and Alternative Hypotheses are given below: From the given information, the…

Q: 3. Because a great number of applicants, Ms. Lawrab, Dean of Admissions at Private University, must…

A: First we state hypothesis for the given question. Ho: There is a relationship between the college…

Q: t has been reported that 5% of U.S. households don’t own a smart phone, 35% own one smart phone, 40%…

A: The distribution of the smartphones in 100 sampled households is given as:No. of smartphonesNo. of…

Q: The National Technology Readiness Survey sponsored by the Smith School of Business at the University…

A: Denote p2009 and p2004 as the true population proportions of spam emails deleted by Americans in…

Q: An article published in the “American Journal of Public Health” describes the results of a health…

A: No. of  years of age or older male convicts in the administered health survey, The sample proportion…

Q: school administrator claims that 85% of the students at his large school plan to attend college…

A: Given that ; Sample size (n) = 50 P = 85 %  P(cap) = 76%  By using one sample proportion test we get

Q: . There has been extensive ongoing debate concerning whether Wawa coffee is everyone's favorite…

A: Provided information is, there has been extensive ongoing debate whether wava coffee is everyone’s…

Q: Suppose one of these persons is selected at random, compute P(C₂ or 1₂). Select one: O a. 0.571 O b.…

A: Given that   C2 = 665 , I2 = 334 C2 and I2 = 166

Q: An article published in the “American Journal of Public Health” describes the results of a health…

A: No. of 50 years of age or older male convicts in the administered health survey, The sample…

Q: 3. There is a teacher shortage across the nation. A random sample of teachers for different school…

A: Data given    High school Middle school Elementary Total Satisfied 35 30 62 127 not satisfied…

Q: who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In…

A: It is given that sample size (n) is 4,625 and p hat value is 1-0.32 = 0.68.

Q: I am being told that the sample size answer of 384 given to me was incorrect. Is there any way this…

A: 12... Margin of error =0.05 At confidence interval 95% we have to find sample size

Q: A marketing agency wanted to determine if a new commercial changed people's opinion about a company.…

A: Statistical hypothesis means the decision about a population parameter. Here we look at the data we…

Q: 18. "38% of adults in the United states regularly visit a doctor" This conclusion was reached by a…

A: 38% of adults in the United states regularly visit a doctor This conclusion was reached by a college…

Q: 4. Source: the federalist.com "According to a new Gallup poll released Wednesday [3/25/20], the…

A:

Q: home improvement company is interested in improving customer satisfaction rate from the 58%…

A: We have given that  Sample size n=273 favorable cases x=171  Population proportion p=58%=0.58 Sample…

Q: In a recent survey [YouGov, 11th–16th June 2020], 1088 adults were asked (amongst other questions)…

A: Given::- In a recent survey [YouGov, 11th–16th June 2020], 1088 adults were asked (amongst other…

Q: We want to investigate whether there exists gender bias on traffic stops by the police here in…

A: Given that, For females: Sample size, n1= 24314 and x1= 438 For males: Sample size, n2= 34095 and…

Q: Zobserved Zeritical left Zeritical right= We the null hypothesis. We conclude that the current…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.