A scientist walks into the courtroom and states that most scientists believe exactly 50% of the population is female. He says he wants to prove the case that these scientists are wrong and the true % of females in the population is different. Before he presents his case, we say we’ll believe him if there is a 5% chance or less that he is wrong. He presents his evidence and we conclude that there is only 3% chance that the population is exactly 50%. What should jury conclude? A. The scientist has strong evidence that the population IS NOT 50% female. B. The scientist does not have enough evidence that the population IS NOT 50% female.

Q: In July of 2013, Australians were asked if they thought unemployment would increase, and 47% thought…

A: We have to test at  whether the proportion of people who thought that the unemployment is increases…

Q: In a study of whether smoking causes lung cancer, researchers examined 2000 people.  About half of…

A: Four percent of the smokers developed heart disease by the end of the study period, whereas only one…

Q: Does the interval above provide evidence that more than 60% of northern Kentucky residents are…

A: Given : A 2013 survey of 1692 northern Kentucky AAA members was asked their opinion on instituting a…

Q: Given that population mean equals 40; state the null and alternate hypothesis; if you believe that…

A: See the attachment

Q: You and a friend are interested in knowing if two groups have the same proportion of smokers. The…

A: 1. In the given situation, the proportions of two groups are comparing. The suitable test for…

Q: Four friends are dining at the SFCC Cafe.  They are discussing the chance it will rain in Spokane…

A: Classical theory of probability: Classical probability is the statistical concept that measures the…

Q: Approximately 5.3% of Americans have French heritage. If you randomly select 350 Americans and ask…

A: Obtain the approximate probability that less than 3% of them to have French heritage. The…

Q: Your statistics instructor claims that 60 percent of the students who take her Elementary Statistics…

A: From the provided information, Sample size (n) = 64 From which 33 feel more enriched as a result of…

Q: On a special region, the weather can only be either cool, warm or hot. If it is hot today, there is…

A: The weather can be cool, warm or hot. The states are : cool(c), warm(w), hot(h) If it is hot today,…

Q: a population of fish, approximately 47% are female. A test is conducted to see if, in fact, the…

A: A null hypothesis is a type of hypothesis which is used in statistics. It states that there is no…

Q: Your local school board wants to determine the proportion of people who plan on voting for the…

A: Note:- As per our policy, we can answer only three subparts of a question. Please make a new request…

Q: Mia is a researcher in a medical lab and to get a correct measurement on a specimen, all three of…

A: Obtain the probability that Mia gets a correct measurement on her specimen. The probability that Mia…

Q: In Wyoming, there are about 300,000 registered voters, of whom 30,000 are Democrats. A survey…

A: Given that  N=300000 , X=30000 , n=900 p=X/N=30000/300000=0.10

Q: A researcher is wondering whether people will show up to vote. If there is a random sample of…

A: Given: n=68 x=40

Q: I am wondering what statistical analysis would be best practice to use if I am comparing data from…

A: ANSWER:  Comparing data from state to state can involve analysis of multiple variables and can be…

Q: in a certain large state university, older students get to choose their classes before younger…

A: The null and alternative hypothesis are H0 : p = 0.32H1 : p  > 0.32 p̂ = 0.36  z = 1.212

Q: Four friends are dining at the SFCC Cafe.  They are discussing the chance it will rain in Spokane…

A: Conditional probability: Conditional probability refers to the chances that some outcome occurs…

Q: The weather in Columbus is either good, indifferent, or bad on any given day. If the weather is good…

A: Given that the weather in Columbus is either good, indifferent or bad on any given day.Case 1If the…

Q: Which of the four is using the subjective theory of probability?

A: Subjective probability is a type of probability derived from an individual's personal judgment or…

Q: Nationally, 83% of Americans have earned a high school diploma.  We want to see if the proportion of…

A: A statistical hypothesis is a statement or an assertion about the population parameters. Hypotheses…

Q: Recently, a nurse commented that when a patient calls the medical advice line claiming to have the…

A: Given : p = 0.04 n = 25

Q: As a promotion for its 20 ounce bottles of soda, a soft drink company printed a message inside each…

A:

Q: A couple plans to have four children. The father notes that the sample space for the number of girls…

A: Given information- We have given that, a couple plans for 4 children. The sample space for the…

Q: Wendy needs to get to an airport from a hotel. There is 0.19 chance that she calls a cab, there is…

A:

Q: a. What is the test statistic?  b. What is the p-value? (Round your answer to four decimal places.)…

A: a. The claim of the test is hat 60 percent of the students who take her Elementary Statistics class…

Q: The magazine Tech Worx reported that  89%  of software engineers rate the company they work for as…

A: A sample of 225 randomly chose software engineers in which 216 rated the company they work for a "a…

Q: Charlie tests whether there are more male or female coffee drinkers at his university's coffee shop.…

A: The number of customers (n) is 76.

Q: Country Magazine reports that celebrity MySpace accounts have an average of 4 million friends.…

A: We have given that, Mu = 4 , Xbar = 3 , n =43 . We have to find , Which is the best set of…