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I'm getting confused about this things: 1. My teacher said that Nominal,Ordinal,Interval and Ratio has their own appropriate measures of location. for example: For Nominal the appropriate measures...

# What is the probability that a random sample of 17 persons will exceed the weight limit of 3,434 pounds?

The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard deviation of 29 pounds. On a raft that takes people across the river,...

# Probability - In the 1990s in the US, oil spill events of over 10,000 gallons occur at a rate of approximately 12 per month. Assume such occurrences follow a Po

Probability - In the 1990s in the US, oil spill events of over 10,000 gallons occur at a rate of approximately 12 per month. Assume such occurrences follow a Poisson process.   (a)...

# What is the null and alternative hypotheses?

An SRS of 16 student subjects took a sensitivity to contrast after 3 hours facing into bright sun, both with and without eye grease. This is a matched pairs design. Here are the differences in sensitivity,...

# I need an example of a Study that is Concluding in a Proportion or a Percentage?

All I need is an example.

# Statistics Multiple Choice Problem

Find a 99% confidence interval for the population mean for a sample of size 36 that yields a mean of 78 and a standard deviation of 6. Assume sigma, the population standard deviation, is unknown. A)...

# For samples of the specified size from the population described, find the mean and standard deviation of the sample mean  x

The mean and the standard deviation of the sampled population are, respectively, 113.9 and 32.1. n = 6

# Confidence Interval: x_bar ± zc(s/vn) The margin of error is: E = zc(s/vn)

Confidence Interval: x_bar ± zc(s/√n) The margin of error is: E = zc(s/√n) Using those formulas, respond to the following questions and support your response by referring to the formula: What...

# if the mean of sat scores is 1900 and the std dev is 100 what do you have to make to be in the upper 16%

if the mean of sat scores is 1900 and the std dev is 100 what do you have to make to be in the upper 16%

# word problem figuring out percentage of teams total points

olga currently leads the 8th grade girls team in scoring with a total of 50  points.  Thomas leads the 8th grade boys team with a total of 52 points.  which player should get the midseason...

# For the standard normal distribution, find the probability that z between -1.47 and -.16

For the standard normal distribution, find the probability that z between -1.47 and -.16

# In need of Statistic Tutor San Jose

Hello I am in need of a statistic tutor in San Jose.  I am currently attending San Jose State struggling to find an available tutor for tomorrow. Please get back to me asap.  Thank you!...

# car security alarms go off at a mean rate of 3.8/hr. What is probability that in an hour there will be fewer than 4 alams

Using poisson distribution  - Statistics Class   car security alarms go off at a mean rate of 3.8 per hour. What is the probability that in an hour there will be fewer than 4...

# is there any free statistics programs that complete the calculations for you?

I can identify the the correct values for the formulas but sometimes miscalculate the answers.  Is there any online websites that you can click on the corresponding formula and fill in the values...

# Z-score help

Your friend Zoey has a height with a z-score of -1.51. Will she qualify to work at the fire department. If the Standard dev. is 3.1 and Mean is 5ft 4 inches.

# A man gets an invoice for \$430 with terms 2/10, 1/15,n/30. How much would he pay 8 days after the invoice date? The net amount due is ?

The net amount of \$430 with terms of 2/10, 1/15, n/30. How much is paid in 8 days

# Please help. I need to know how to do this by Friday morning

Association between midterm and final exam scores are linear.  The summary is midterm: mean=75, Standard deviation =10. Final: Mean =75, Standard deviation = 10. The correlation is 0.7. According...

# What do you do to figure this problem?

If females of a certain species of lizard always mate with males that are 0.75 years younger than they are, what would the correlation between the ages of these male and female lizards be?  I'm...

# I am getting the wrong answer for this simple problem and I don't know what I'm doing wrong.

Determine the correlation between the height and weight of 21 year old males.  If I measured the height and weight of two 21 year old men.    Male #1  Height 70, Weight 160       ...

# Which of the following is not a reason for sampling? Explain. a. The destructive nature of some tests. b. High cost of studying the entire population. c. The

Which of the following is not a reason for sampling? Explain. a. The destructive nature of some tests. b. High cost of studying the entire population. c. The expense of obtaining...