1,011 Answered Questions for the topic Statistics Question

Statistics Question

02/05/15

In two major golf tournaments one professional golfer finished second and ninth, while another finished sixth & fifth.
Comment on the argument that since 2+9=6+5, the overall performance of the two golfers in these two tournaments was equally good
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Statistics Question

02/05/15

If all the values in a set are increased by 10, does the range also increase by 10,? explain?
Statistics question pls explain me 
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Statistics Question

02/05/15

if the value for the median of a set is not found in the data set what must be true about the data set?
It's statistics question  pls help me 
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Statistics Question

02/04/15

Stats word problem
4. The probability that an adult male is shorter than 66 inches is 0.3; that he is between 66 and 70 inches is 0.5; and that he is taller than 70 inches is 0.2. If two males are picked at random,... more
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Statistics Question

02/04/15

Stats word problem
3. The probability that a person picked at random is over 65 years old is 0.12. If two people are picked at random, find the probability that: a. they are both over 65b. neither is over 65c. at... more
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Statistics Question

02/04/15

Stats word problem
2. A fair die is rolled twice. Find the probability of the following.a. rolling a sum of 10 on the two rollsb. rolling a sum not equal to 5 on the two rollsc. rolling a 2 first, then a 6d. rolling... more
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Statistics Question

02/04/15

Stats work problem
1. Four hundred people attending a party are each given a number, 1 to 400, for a door-prize drawing. One number is drawn at random to determine the winner. Find the probability that the number... more
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Statistics Question

02/02/15

Statistical Help
Suppose IQ scores were obtained from randomly selected siblings. For 20 such pairs of people, the linear correlation coefficient is 0.887 and the equation of the regression line is y = -2.86 +... more
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Statistics Question

02/02/15

Statistical Help
Assume that the significance level is a = 0.05.  Use the given information to find the P-value and the critical value with H1 ; P ≠1/2, the test statistic is z = -1.36   p-value = ____   the... more
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Statistics Question

02/02/15

Statistical Help
In a test of the effectiveness of garlic for lowering cholesterol, 44 subjects were treated with garlic in a processed tablet form.  Cholesterol levels were mearsured before and after the... more
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Statistics Question

02/02/15

Statistical Question
If np≥5 and nq≥ 5 estimate P(more than 4) with n=14 and p = 0.7 by using the normal distribution as an approximation to the binomial distribution if np<5 or nq<5, then state tha the normal... more
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Statistics Question

02/02/15

Statistical Help
A survey found that women heights are normally distributed with mean 63.4 in. and standard deviation 2.5 in. A branch of the military requires women's heights to be between 58in and 80 in.A) Find... more
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Statistics Question

02/01/15

Compute the range and sample standards deviation for strength of the concrete 3980, 4050, 3400, 3000, 2940, 3810, 4050, 4020
The range and sample 
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Statistics Question

01/19/15

the area that lies between Z=-0.23 and Z=0.23 is
the area that lies between Z=-0.23 and Z=0.23 is
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Statistics Question Statistics

01/18/15

Statistic Question - I am trying to solve this problem but I dont know how! Could someone help me? Thank you!
An underwriter of home insurance policies studies the problem of home fires resulting from wooding-burning furnaces. Of all homes having such furnaces, 30% own a type 1 furnace, 25% a type 2... more
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Statistics Question

01/17/15

Statistic Question - I am trying to solve this problem but I dont know how! Could someone help me? Thank you!
Of a finance company`s loans, 1% are defaulted (not completely repaid). The company routinely runs credit checks on all loan applicants. It finds that 30% of defaulted loans went to poor risks, 40%... more
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Statistics Question

01/17/15

Statistic question - An underwriter of home insurance policies studies the problem of home fires resulting from wooding-burning furnaces.
An underwriter of home insurance policies studies the problem of home fires resulting from wooding-burning furnaces. Of all homes having such furnaces, 30% own a type 1 furnace, 25% a type 2... more
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Statistics Question

01/17/15

Of a finance company`s loans, 1% are defaulted (not completely repaid). The company routinely runs credit checks on all loan applicants. It finds that....
Of a finance company`s loans, 1% are defaulted (not completely repaid). The company routinely runs credit checks on all loan applicants. It finds that 30% of defaulted loans went to poor risks, 40%... more
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Statistics Question

01/15/15

Texas Hold em Question
in the game of texas hold em a player is dealt two cards (called hole cards) from a shuffled standard deck of 52 playing cards. The order in which the cards are dealt does not matter. A. Find the... more
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Statistics Question Probability

01/14/15

The probability of students
70% like chocolate ice cream, 40% like strawberry ice cream, and 30% like both. If a student is randomly selected what is the probability that they like chocolate or strawberry but not both
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Statistics Question

01/05/15

When the correlation coefficient shows letters as well as numbers (example: '1.181e-07') is this an error and how do I correct it?
I am using Stata and appear to have an error. The correlation coefficient - and the 95% confidence interval and standard errors - are showing letters in addition to numbers. I have no idea how to... more
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Statistics Question

01/04/15

Question is on calculating a median in a ranged response to a survey.
468 answered a question in the survey. The median response is 234. But, the response falls within a ranged answer, $100,000 - $200,00. 41 answered the first ranged response, Less than $100,000 and... more
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Statistics Question

12/21/14

Statistic Help, and I need it fast
A local radio station plays 40 rock-and-roll songs during each 4-hour show. The program director at the station needs to know the total amount of airtime for the 40 songs so that time can also be... more
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Statistics Question

12/21/14

Statistic Help, and I need it fast
A tire manufacturer designed a new trend pattern for its weather tires. Repeatered test were conducted on cars of approximately the same weight traveling at 60 miles per hour. The test showed that... more
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Statistics Question

12/21/14

probability/Confidence intervals
The manufacturer of a coffee dispensing machine claims that the ounces per cuphas a distribution with mean μ = 0.7 ounces.  and standard deviation σ = 0.7 ounces. If 39 cupsare measured, what is... more
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