A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students attended the opening night midnight showing of the latest Harry Potter movie. She surveys 84 of her students and finds that 11 attended the midnight showing. An appropriate alternative hypothesis is: a. p = 0.20 b. p > 0.20 c. p < 0.20 d. p ≤ 0.20

Q: skateboard 2. A study on crime suggested that at least 40% of all arsonists were less than 21 years…

A:

Q: statistics

A:

Q: Identify the type of hypothesis test below.H0:X≤16.9, Ha:X&gt;16.9

A: Solution:From the given information, the null and alternative hypothesis are given below:Null…

Q: A researcher rejected the null where r(146) = .148, p = .03 and concluded that the effect size was…

A: Conditions: If the value of r lie between 0.1 to 0.3 then the effect size is small. If the value of…

Q: In a recent poll, 530 people were asked if they preferred cats or dogs. 59% said they preferred dogs…

A:

Q: A medical researcher says that less than 85% of adults in a certain country think that healthy…

A: For the  given data Perform Z test for one proportion

Q: Night Owls - A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours…

A: The random variable time follows normal distribution. The population proportion is 40%. We have to…

Q: In the survey of employees at a fast food it was determined that  9 cooked food  12 washed dishes…

A: Given: The total number of employees = 34. The number of employees who cooked food = 9. The number…

Q: Chocolate and Happiness In a survey sponsored by the Lindt chocolate company, 1708 women were…

A: a.Here, the survey was conducted by the Chocolate Company, so there can be a possibility of…

Q: Parents complain that children read too few storybooks and watch too much television nowadays. A…

A:

Q: A multinational firm hired a consultant to determine if the workers in their domestic plants were…

A: Given Information : A multinational firm hired a consultant to determine if the workers in their…

Q: 9) Do a hypothesis for the following, make sure to include and label all five steps: Test the claim…

A: H0: The proportion of wins is independent of wearing a suit and tie or jeans and t-shirt.H1: The…

Q: 187 families have health insurance out of a random sample of 292 families. Kaiser states that the…

A: (c) To find the critical value use invNorm(). (d) From the information, the hypotheses test for…

Q: Jane surveys a random sample of 200 students from her middle school to learn what type of school…

A: Obtain the sample proportion of students who prefer sandwich: It is given that among a sample of 200…

Q: In a recent poll, 450 people were asked if they preferred cats or dogs. 52% said they preferred dogs…

A: Given data: n = 450  52% said they preferred dogs and 48% of people said they preferred cats, with a…

Q: n analyst stated that the average amount of money spent on New Year gifts for friends is above…

A:

Q: Maria has two routes, E and W, she can take when commuting to work. Both routes go through a…

A: Decision rule : Reject H0 if P-value  &lt;  α Here  P-value = 0.37 &gt; 0.1 = α.  Conclusion :…

Q: Night Owls - A MSU psychologist reports that 38% of MSU students regularly sleep less than 8 hours…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: A statistics instructor believes that more than 20% of Evergreen Valley College (EVC) students…

A: Given: p=proportion of student attended the opening midnight show=0.20

Q: An education researcher claims that 57​% of college students work​ year-round. In a random sample of…

A: Given, The sample proportion is, The null and alternative hypothesis is:

Q: A researcher rejected the null where r(98) = .770, p < .001 and concluded that the effect size was…

A: Conditions: If the value of r lie between 0.1 to 0.3 then the effect size is small. If the value of…

Q: In the survey of employees at a fast food it was determined that  9 cooked food  12 washed dishes…

A: The shaded region in the Venn diagram represent number of employees washed dishes or operated cash…

Q: A medical researcher says that less than 72% of adalts in a certain country think that healthy…

A: From the given information, let X be the number of adults in a certain country think that healthy…

Q: 5. A statistics instructor believes that fewer than 20% of Evergreen Valley College (EVC) students…

A: According to our policy we can answer only first question for remaining please repost the question.

Q: A TWISTER spinner has four outcomes; red, blue, yellow, green. Tim believes that the proportion…

A:

Q: To see if the average number of family-owned daycares per county is greater than the average number…

A: The study is about to see the average number of family-owned daycares is greater than the average…

Q: Newborn babies are more likely to be boys than girls. A random sample found 13,173 boys were born…

A: Given information: It is more likely to be boys than girls when newborn babies are considered.  A…

Q: State the null and alternative hypothesis, and identify which represents the claim. d) According to…

A: The objective is to state the null and alternative hypothesis, and identify which represents the…

Q: The table shows the results of a random survey of students in grade 9 and grade 10. Every student…

A: we have to find correct statement.

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the…

A: null and alternative hypothesis are contradict to each other, we claim the null hypothesis to…

Q: The quality control manager of Marilyn’s Cook- ies is inspecting a batch of chocolate-chip cookies…

A: The Poisson distribution: A discrete random variable X is said to have a Poisson distribution with…

Q: n a survey of 120 people regarding their tastes in desserts, the following results were obtained:…

A:

Q: Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend…

A: no. of student in sample = n = 40 no. of students attended after-school Programms = x = 7 Total No.…

Q: It is claimed that the proportion of men who want football matches to be broadcast more frequently…

A: Given, x1 = men favoured publication more frequently = 60 n1 = total number of men = 120 x2 = women…

Q: use a hypothesis test to determine if the proportions are statistically different. A recent survey…

A:

Q: 26. A researcher compared the time (in seconds) that children in two classrooms remained seated…

A:

Q: Determine whether the study is an experiment or an observational​ study, and then identify a major…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: Night Owls - A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours…

A: Given that:  population proportion(p)=0.40 x=77 n=215

Q: A student conducts a survey on the favorite ice cream flavors of students at Central Middle School…

A: Solve for percentage

Q: Supposed that in the past, 10% of women in the Philippines have severe dysmenorrhea. Do we have…

A: Followings are the answer of the questions The following information is provided: The sample size is…

Q: na has conducted a hypothesis test for H0:μ=72 vs. Ha:μ≠72, found a p-value of 0.07, and decided not…

A: In hypothesis testing, the null hypothesis can be defined as the hypothesis of no difference or…

Q: n the upcoming election between two close candidates, a poll reports that Jones leads Smith. For…

A: The formula to compute the confidence interval is, CI=(p-MOE,p+MOE) MOE indicates the margin of…

Q: Globally, 35% of all ridged brittleshell tortoises have spots on their shells. A herpetologist in…

A: According to guidelines we solve first question only when given questions are different.

Q: 24- The marketing manager for an automobile manufacturer is interested in determining the proportion…

A: We have to find out correct statement for given data.

Q: Illustrate the problem with doing t tests among all pairs of means?

A:

Q: In the past, 74% of the tourists who visited Chattanooga went to see Rock City. The management of…

A:

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.35…

A: The z-test determines the claim about one population proportion.

Q: A statistics instructor believes that more than 20% of Evergreen Valley College (EVC) students…

A: Given: n= 84 ,x= 11.0 p= 0.20 Need to find Alternative hypothesis condition??

Q: Determine whether the study is an experiment or an observational​ study, and then identify a major…

A: In an observational study, researcher observes the individuals and measure the outcomes. In this…

Q: question is pictured

A: