We have administered an anxiety test to all members of the

Assignment Help Basic Statistics
Reference no: EM13241180

We have administered an anxiety test to all members of the class. The mean anxiety score is 71 and the standard deviation is 9. (higher score=higher anxiety)

What percentage of people scored over 86 on the anxiety test?

Reference no: EM13241180

Questions Cloud

How can find the number of students who made a b : If I know the T-score for those who made an A on a test is 60, the z-score for those that made a B is .5, the number of students total is 200,
Find the childs speed at the lowest point : A 43.0-kg child swings in a swing supported by two chains, each 2.92 m long. The tension in each chain at the lowest point is 346 N. Find the child's speed at the lowest point
What is the relationship between the sign of the correlation : What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
How high a score do you need to be in the top 30 : With a mean of 300 and a standard deviation of 80, how high a score do you need to be in the top 30%?
We have administered an anxiety test to all members of the : We have administered an anxiety test to all members of the class. The mean anxiety score is 71 and the standard deviation is 9. (higher score=higher anxiety)
Explain how to use the workin = workout principle : The spring balance is reasonably accurate for determining the load mass, Explain how to use the Workin = Workout principle to verify the mass of the spring balance
A sample of households that subscribe to the united bell : A sample of households that subscribe to the United Bell Phone Company revealed the following numbers of calls received by each household last week. Determine the mean, median, and standard deviation of the number of calls received.
What statistical tests can perform to compare two groups ask : What statistical tests can perform to compare two groups asked the same question, when the question has a yes/no answer and the sample groups are different.
A sample of size is selected from a normal population : A sample of size n = 14 is selected from a normal population to construct a 95% confidence interval estimate for a population mean. The interval was computed to be (7.82 to 9.64). Determine the sample standard deviation.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Hypothesis testing using z test for proportion

Professor Jennings claims that 35% of the students at Flora College work while attending school. Dean Renata thinks that the professor has underestimated the number of students with part time or full time jobs. A random sample of 81 students shows..

  Dependent sample t test

A nutritionist heard on the radio an amazing new diet drink that if taken at bedtime you will lose weight as you're sleeping. To top it off you can eat anything you want because the diet fuel will burn it off.

  Probability that big-screen television buy in sample

What is the probability that a randomly selected big-screen television purchase in this sample is a purchase of a plasma-screen television?

  Data collecting and analysis

I need to collect both primary and secondary data regarding the research issue on salary of baseball players. (the aim of this research is to verify whether the salary of the baseball players varies with respect to the state)

  Find probability that patient is diagnosed as hypokalemic

Judy's measured potassium level varies according to the Normal distribution with mean = 3.8. If a single potassium measurement is made, what is the probability that Judy is diagnosed as hypokalemic?

  Mean squares and population variance

What is the value of the mean square for error (the "within groups" mean square that would be reported in the ANOVA test, and what is the value of the mean square for treatments (the "between groups" mean sqaure) that would be reported in the ANOVA ..

  Compute power of previous test if true proportion is given

Compute the power of the previous test if the true proportion of adults having access to the internet in the population is 41%. What is the power if the true proportion is 42%? 43%?

  Probability depend on binomial distribution

Find the probability that exactly 15 flights arrive on time.

  Which confidence interval is more practical and useful

Compute the 3.9% confidence interval on the mean. Which confidence interval is more practical and useful in a business situation? Why?

  Determining forecasting simulation

The number of cars arriving at Joe Kelly's oil change and tune-up place during the last 200 hours of operation is observed to be the following.

  Statistics and probability problem

The level of significance is quantitatively defined as ? and the statistical power of a test is quantitatively defined as 1-?

  Construct the probability distribution for x

A bag of jelly belly candies contains the following colored jelly beans: red (10), blue (2), orange (5), brown (21), green (0), and yellow (18). Construct the probability distribution for x.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd