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Statistics Question

12/04/17

In a hospital 60% of the patients are married. What’s the probability that a sample of one word with 8 patient, had 3 were married

How do you do the question step by step

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Statistics Question

12/03/17

Mean of 600 hours, standard deviation of 70 hours. What percent will be from 600-740 hours, what percent under 600 hours, and what percent 390-670 hours.

Using 68-95-99.7% rule

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Statistics Question

12/02/17

The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2

0.9099 0.2236 0.1335 0.7764

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Statistics Question Statistics Regression Regression Model

12/02/17

In a regression anaylsis, if r2 = 1, which of the following are implied? a ) SSE = SST b) SSE = 1 c) SSR = SSE d) SSR = SST

A question regarding regression analysis in statistics

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Statistics Question Statistics Statistics Method

11/30/17

Type I and II error with small sample size?

Let X ∼ P(λ). We want to test the null hypothesis that λ = 15, and thealternative hypothesis is that λ > 15. Our sample size for this test is equal to 1. (a) We will reject the null hypothesis... more

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Statistics Question

11/28/17

A fair die is rolled 12 times. Consider the following three possible outcomes:

(i) 5 2 6 3 2 1 4 1 6 5 3 4(ii) 1 1 2 2 3 3 4 4 5 5 6 6(iii) 6 6 6 6 6 6 6 6 6 6 6 6Which of the following is true? (i) is more likely than (ii) or (iii). (ii) is more likely than (iii). The three... more

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Statistics Question

11/27/17

WHAT ARE THE FOUR MAJOR COMPONENT OF STATISTICS?

help me give me the answers of 4 major components of statistics.

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Statistics Question Statistical Method Statistical Concepts,

11/23/17

I have a question about hypothesis testing with two population mean.

Hi,I have a question about hypothesis testing with two population mean. I have two populations (GPA and expected salary). Also, my research question is: Are the students with high average GPA... more

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Statistics Question Statistics Basics Of Hypothesis Testing Statistics Question, Hypothesis,

11/19/17

WHAT HYPOTHESIS TEST TO USE WITH NON-NUMERIC DATA?

I have a question and I'm being asked to specify which test to use and then conduct it. However, the data given is non-numeric. the question statement is "males and females differ in whether or not... more

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Statistics Question

11/18/17

Find the probability and interpret the results.

Find the probability and interpret the results.The population mean annual salary for environmental compliance specialists is about $60,000. A random sample of 40 specialists is drawn from this... more

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Statistics Question

11/18/17

Find the indicated probability using the standard normal distribution. P(0<z<0.525)?

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Statistics Question

11/18/17

Find the z-scores for which 3% of the distribution's area lies between −z and z.?

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Statistics Question Statistics

11/18/17

victims recently exposed to radiation are 5.5, 6.2, and 4.8. Based on this observed data a 95% Confidence Interval for μ computed to two decimal places is

Post-exposure radiation levels are approximately Normally distributed with mean μ. The levels (in Sv) of a random sample of three trauma victims who were recently exposed to radiation are 5.5, 6.2,... more

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Statistics Question Math Statistics

11/18/17

How to set up this stats problem

What is the probability a random sample of size 20 will have a mean gestation period within 11 days of the mean? σ=13 μ=197

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Statistics Question

11/15/17

The probability that an individual has 20-20 vision is 0.1 in a class of 77 students, what is the probability of finding five people with 20-20 vison

I need help answering this question. A)0.065 B)0.000 C)0.1 D)0.100

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Statistics Question Statistics College Math

11/12/17

scores on a SAT - statistics

Scores on a SAT form a normal distribution of µ = 500 and σ = 100 1) What is the minimum score necessary to be in the top 20% of the SAT distribution? 2) find the range of value that... more

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Statistics Question Binomial Math Problem

11/12/17

Binomial stats problem help

A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 15 adults are selected at random and the number who are satisfied is recorded.-Would it be... more

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Statistics Question Null Hypothesis Testing Population Vs. Sample

11/10/17

been stuck with this stats problem for an Hour!!

Top sales executives, Alissa and Emilia came up with kiwi passion fruit cookie company. The machine fills each package cookies so that they have an average weight of 32 ounces with a variance of... more

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Statistics Question Null Hypothesis Testing

11/10/17

Hypothesis testing

Alondra , Lídia Co creators of quiadas inc claim that their facial blend will keep woman’s skin and healthy for at least 65 days. Alex ,advocate tested 15 bottles and found a mean of 63 days with a... more

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Statistics Question Probability

11/09/17

52% of voters voted for Barack Obama. If a sample of 100 voters were polled, would it be unusual if less than 40% of them had voted for Barack Obama

I've been trying to remember how to solve this but I can't find it in my notes please help

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Statistics Question Statistics

11/08/17

a fashion designer wants to know how many new dresses women buy each year. Suppose a sample of 849 is drawn with x= 5.3. Assume standard deviation = 1.5.

construct 98% confidence interval. lower and upper bounderies needed

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Statistics Question

11/07/17

For population, N = 11,000, mu =139, standard deviation = 15, find z value for x =128.60 for n= 64

mu = µ, standard dev = σ

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Statistics Question Statistics Percentages

11/05/17

Statistics question.

I'm having a bit of trouble with this question. So I know that I need to find the z-score, but after that i'm not sure how to fer the exact percentage? I know the formulas for the z-score and... more

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Statistics Question

11/05/17

PROBABILITY

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 49.0 and 54.0 minutes. Find the probability that a given class period runs... more

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Statistics Question

11/02/17

50 students take an iq test, which has a mean of 100 and a standard deviation of 10. What would a student need to score to be in the top 95 percentile

minimum score in the top 5 percent maximum score and still in bottom 25 percent

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In a hospital 60% of the patients are married. What’s the probability that a sample of one word with 8 patient, had 3 were married

Mean of 600 hours, standard deviation of 70 hours. What percent will be from 600-740 hours, what percent under 600 hours, and what percent 390-670 hours.

The National Association of Realtors estimates that 23% of all homes purchased in 2004 were considered investment properties. If a sample of 800 homes sold in 2

In a regression anaylsis, if r2 = 1, which of the following are implied? a ) SSE = SST b) SSE = 1 c) SSR = SSE d) SSR = SST

Type I and II error with small sample size?

A fair die is rolled 12 times. Consider the following three possible outcomes:

WHAT ARE THE FOUR MAJOR COMPONENT OF STATISTICS?

I have a question about hypothesis testing with two population mean.

WHAT HYPOTHESIS TEST TO USE WITH NON-NUMERIC DATA?

Find the probability and interpret the results.

Find the indicated probability using the standard normal distribution. ​P(0<z<0.525​)?

Find the​ z-scores for which 3​% of the​ distribution's area lies between −z and z.?

victims recently exposed to radiation are 5.5, 6.2, and 4.8. Based on this observed data a 95% Confidence Interval for μ computed to two decimal places is

How to set up this stats problem

The probability that an individual has 20-20 vision is 0.1 in a class of 77 students, what is the probability of finding five people with 20-20 vison

scores on a SAT - statistics

Binomial stats problem help

been stuck with this stats problem for an Hour!!

Hypothesis testing

52% of voters voted for Barack Obama. If a sample of 100 voters were polled, would it be unusual if less than 40% of them had voted for Barack Obama

a fashion designer wants to know how many new dresses women buy each year. Suppose a sample of 849 is drawn with x= 5.3. Assume standard deviation = 1.5.

For population, N = 11,000, mu =139, standard deviation = 15, find z value for x =128.60 for n= 64

Statistics question.

PROBABILITY

50 students take an iq test, which has a mean of 100 and a standard deviation of 10. What would a student need to score to be in the top 95 percentile

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Find the indicated probability using the standard normal distribution. P(0<z<0.525)?

Find the z-scores for which 3% of the distribution's area lies between −z and z.?