Question

10% of WSU students go to football games. What conditions must be met to assume normality...

10% of WSU students go to football games. What conditions must be met to assume normality of p-hat? Say a sample of 500 students is conducted. What is the probability that more than 57 of them go to football games. Is 500 to big or too small?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Let's say you want to poll a random sample of 150 students on campus to see...
Let's say you want to poll a random sample of 150 students on campus to see if they prefer to take online classes. Of course, if you took an actual poll you would only get one number (your sample proportion, p-hat). Imagine all the possible samples of 150 students that you could draw and the distribution of all the possible sample proportions you would get from them. If I told you that we know that 35% of all students actually...
According to a University of Michigan study, released in Fall 2019, 49% of College students in...
According to a University of Michigan study, released in Fall 2019, 49% of College students in the U.S. believed that “whining” in statistics courses should be banned. A recent survey of a sample of 400 college students in the U.S., by Noel (a.k.a. “Son of a Binomial!”), showed that 176 of them held this view. Find the probability that the current proportion of college students that share this view is more than 176 out of 400. a.) What is the...
10) We conduct a study to determine whether the majority of community college students plan to...
10) We conduct a study to determine whether the majority of community college students plan to vote in the next presidential election. We choose a significance level of 0.05. We survey 650 randomly selected community college students and find that 54% of them plan to vote. The P-value is 0.02. H0: 50% of community college students plan to vote in the next presidential election. Ha: More than 50% of community college students plan to vote in the next presidential election....
1a) Assume the annual day care cost per child is normally distributed with a mean of...
1a) Assume the annual day care cost per child is normally distributed with a mean of $8000 and a standard deviation of $500. In a random sample of 120 families, how many of the families would we expect to pay more than $7295 annually for day care per child? P(x > 7295) = ____% The number of families that we expect pay more than $7295 is _____ 1b) A machine used to fill gallon-sized paint cans is regulated so that...
1. Do you check your phone or use technology right before you go to bed? If...
1. Do you check your phone or use technology right before you go to bed? If so, chances are that you are not alone. A recent news report claims that 60% of adults use some kind of technology right before they go to bed at night. Believing that this claimed value is too low, a researcher surveys a random sample of 200 adults and finds that 71% use some kind of right before they go to bed. If a hypothesis...
Let’s assume that we know the population of SAT math scores for Maine students is normally...
Let’s assume that we know the population of SAT math scores for Maine students is normally distributed with a µ = 444 and σ = 115. You randomly select a sample of four students (n = 4) from this population. (a) Calculate the standard error of the mean, X  . (b) What is the probability of obtaining a sample mean at or above 500? Also, please illustrate this using a graph.   (c) Make a graph in which you shade...
For each of the following problems, you must: a) Define the population and the parameter of...
For each of the following problems, you must: a) Define the population and the parameter of interest; b) Identify the given and unknown information and write them in correct notations, c) Verify if the sampling distribution is approximately normal by checking the conditions np > 5 and nq > 5), d) Compute the probability. e) Interpret the answer. ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- 1) The article “Should Pregnant Women Move? Linking Risks for Birth Defects with Proximity to Toxic Waste Sites” (Chance (1992): 40-45)...
As you are answering each question, please explain your answers in addition to picking what you...
As you are answering each question, please explain your answers in addition to picking what you believe to be the correct letter choice. Which of the following does not need to be known in order to determine the p-value? the significance (or alpha) level knowledge of whether the test is one-tailed (or one-sided) or two-tailed (or two-sided) the value of the test statistic All of the above need to be known to determine the p-value. None of the above need...
Ok, let’s say there’s about 10 calories per ounce of human blood and let’s assume that...
Ok, let’s say there’s about 10 calories per ounce of human blood and let’s assume that vampires have the same daily caloric need as humans: 2,000 calories per day. This would mean that vampires would need about 200 ounces, or 12.50 pints, of human blood per day. This would require the vampire to fully exsanguinate about on 1.5 adult humans per day (night?)! Luckily for us mortals, it turns out that vampires need less than 2,000 calories per day (they...
Ok, let’s say there’s about 10 calories per ounce of human blood and let’s assume that...
Ok, let’s say there’s about 10 calories per ounce of human blood and let’s assume that vampires have the same daily caloric need as humans: 2,000 calories per day. This would mean that vampires would need about 200 ounces, or 12.50 pints, of human blood per day. This would require the vampire to fully exsanguinate about on 1.5 adult humans per day (night?)! Luckily for us mortals, it turns out that vampires need less than 2,000 calories per day (they...