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Statistics Question Statistics Elementary Statistics

04/21/14

Please help to my Statistics question?

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... more

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Statistics Question

04/20/14

Assume s is known. What are the critical values for testing H?: µ=200 against H¹: µ ? 200 with a = 0.04 ?

Assume σ is known. What are the critical values for testing Hο: µ=200 against H¹: µ ≠ 200 with α = 0.04 ?a. ±1.41b.±2.05c.±1.67d.±1.75

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Statistics Question

04/01/14

what is the probability that a randomly slected pregnancy lasts less than 172 days?

The mean being 176 days and the standard deviation being 12

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Statistics Question

03/24/14

1. Find B if P=97 and R=77 7/9%. 2. Find P if R =29% and B=300

These are two different questions.

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Statistics Question

03/24/14

A company purchased 10,000 pairs of men slacks for $19.36 per pair and marked them up $22. 83. What was the selling price of each pair of slacks? Use the formul

There are no additional details

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Statistics Question

03/24/14

A recipe uses 4 cups of flour to 1 1/8 cups of milk. If you have 2 cups, how much milk should you use?

I need to answer with an integer or simplified fraction

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Statistics Question

03/23/14

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90.

the scores are normally distributed, what proportion of scores fall between 300 and 400?

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Statistics Question

03/23/14

how to construct a histogram and percentage polygon

how do i do this given a set of data in excel

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Statistics Question

03/23/14

how to find the true population mean or population proportion in continuous probability distribution?

create a new worksheet on excel document and create worksheet probability depending on major assignment the population mean for goals scored by FIFA soccer player

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Statistics Question

03/17/14

College Women/ Mothers Height Question

Are college women are taller on average than their mothers. The results (in inches) were as follows: Pair 1 2 3 4 5Daughter 66 64 64 69 66Mother 66 62 65 66 63a. Define... more

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Statistics Question

03/16/14

when a dime is tossed 3 times eight likely outcomes are possible. let a=event the first toss is heads, b=third toss is tails and c=event the total number is one

compute P(C/A) and are A and C independent events and why?

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Statistics Question

03/16/14

find the number of weaving errors in a 20 by 10 foot rug

Find the number of weaving errors in a 20 by 10foot rug. What is the probability of finding at least 3 errors in the rug??? this is all the information given. The chapter is on discrete random... more

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Statistics Question

03/07/14

Why is it important to learn statistics in the study of Psychology?

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Statistics Question

02/25/14

How can I find the least-square regression line?

If I was given this data how can I find the least squares regression line: x = 21 y= 78 sx = 1.5 sy= 0.8 r=0.81

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Statistics Question Standard Deviation

02/22/14

What is the minimum "usual" value equal beats per minute?

A certain group of tests subject had pulse rates with a mean of 77.1 beats per minute and standard deviation of 12.6 beats per minute. Would it be unusual for one of the test subjects to have a... more

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Statistics Question

02/22/14

Find the marginal distribution of age group

Age group 15 to 19 years, 2124 Females and 1876 Males

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Statistics Question

02/19/14

If a stemplot showed the following numbers of pizza pieces eaten by a contestants:

08, 17, 19, 25, 27, 29, 30, 32, 35, 37, 39, 39, 41, 42, 46, 53, 57, 63 What percent of contestants ate more than 50 pieces of pizza?

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Statistics Question

02/19/14

The five number summary for the length of duration (in minutes) of a volcano eruption is 1.7, 2.3, 4.0, 4.4, 5.2.

What percent of the eruptions last longer than 2.3 minutes?

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Statistics Question

02/19/14

A national achievement test is administered annually to 5th graders.

The test scores are normally distributed with a mean of 100 and a standard deviation of 15. If Tom's standardized score is 1.23, what was his approximate score on the test? Round to the whole... more

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Statistics Question

02/19/14

SAT Math scores have a Normal Distribution N(515, 114).

If a student wants a score in the top 20% of SAT Math scores, he must score at least ____________.

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Statistics Question

02/19/14

Vivian earned a score of 940 on a national achievement test.

The mean test score was 850 with a standard deviation of 100. What porportion of students had a higher score than Vivian? (Assume that test scores are normally distributed.)

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Statistics Question

02/18/14

normal distribution that has a mean of 100,

A. For a normal distribution that has a mean of 100, and a standard deviation of 8, determine the Z-score for each of the following X values:1 B. Use the information in 1 A. to determine the area... more

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Statistics Question Statistics

01/15/14

When do you use the formulas of the Coefficient of Variation?

When do you use the formulas of the Coefficient of Variation? Can you set an example to justify your answer?

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Statistics Question Statistics

01/14/14

Statistics Questions

1. How do you solve for median if the given data is even? For example: 3,1,2,3,1,1 (these given data is even.) 2. When do you use the formula n+1/2 (for odd number) and n+2/2 (for even numbers)?... more

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Statistics Question

12/23/13

Test the hypothesis that the mean days of recovery is not different among treatment types at a = 0.01.

Pill 3.9 1.4 4.1 5.5 2.3Syrup 5.4 2 4.8 3.8 3.5Sleep 1.3 0.7 2.2 1.4 2.1 Anova: Single Factor SUMMARY Groups Count Sum ... more

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Please help to my Statistics question?

Assume s is known. What are the critical values for testing H?: µ=200 against H¹: µ ? 200 with a = 0.04 ?

what is the probability that a randomly slected pregnancy lasts less than 172 days?

1. Find B if P=97 and R=77 7/9%. 2. Find P if R =29% and B=300

A company purchased 10,000 pairs of men slacks for $19.36 per pair and marked them up $22. 83. What was the selling price of each pair of slacks? Use the formul

A recipe uses 4 cups of flour to 1 1/8 cups of milk. If you have 2 cups, how much milk should you use?

A testing bureau reports that the mean for the population of Graduate Record Exam (GRE) scores is 500 with a standard deviation of 90.

how to construct a histogram and percentage polygon

how to find the true population mean or population proportion in continuous probability distribution?

College Women/ Mothers Height Question

when a dime is tossed 3 times eight likely outcomes are possible. let a=event the first toss is heads, b=third toss is tails and c=event the total number is one

find the number of weaving errors in a 20 by 10 foot rug

Why is it important to learn statistics in the study of Psychology?

How can I find the least-square regression line?

What is the minimum "usual" value equal beats per minute?

Find the marginal distribution of age group

If a stemplot showed the following numbers of pizza pieces eaten by a contestants:

The five number summary for the length of duration (in minutes) of a volcano eruption is 1.7, 2.3, 4.0, 4.4, 5.2.

A national achievement test is administered annually to 5th graders.

SAT Math scores have a Normal Distribution N(515, 114).

Vivian earned a score of 940 on a national achievement test.

normal distribution that has a mean of 100,

When do you use the formulas of the Coefficient of Variation?

Statistics Questions

Test the hypothesis that the mean days of recovery is not different among treatment types at a = 0.01.

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