(Answered) Q1 a survey was conducted in five countriesthe percentages

Statistics

Q1. A survey was conducted in five countries.The percentages of respondents who said that they eat out once a week or more as follows:

Germany 10%
France 12%
United Kingdom 28%
Greece 39%
United States 57%

Suppose that the survey was based on 1,000 respondents in each country.

(a) At the 0.05 level of significance, determine whether there is a significant difference in the proportion of people who eat out at least once a week in the various countries.

(b) Find the P-value in(a)and interpret its meaning.

(c) If appropriate,use the Marascuilo procedure and alpha = 0.05 to determine which countries are different. Discuss your results.

Q2. Fitting a straight line to a set of data yields the following prediction line: Ybar i=2+5xi

(a) Interpret the meaning of the Y interpret,b0.
(b) Interpret the meaning of the slope,b1.
(c) Predict the mean value of Y for X=3.

Q3. If the values of X in problem 13.1 range from 2 to 25,should you use this model to predict the mean value of Y when X equals.

(a) 3?
(b) -3?
(c) 0?
(d) 24?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9957825
Price:- $40

Verified Expert

Priced at $80 Now at $40, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Lt x be a normally distributed random variable with mu

Let X be a normally distributed random variable with μ = 100 and σ = 10. Find the probability that X is between 80 and 105. (Round your answer to the nearest whole number percent and include the percent symbol.)

You invested 7900 one year ago today it is worth 865490

You invested $7,900 one year ago. Today it is worth $8,654.90. What annual rate of interest did you earn? [use annual compounding]

If we are interested in job satisfactionname a variable

If we are interested in job satisfaction. Name a variable that correlates with job satisfaction but we do not have causation. Name a variable that you believe may have a casual relationship with job satisfaction. Name a ...

The length of time needed to complete certain test is

The length of time needed to complete certain test is normally distributed with mean 74 minutes and standard deviation 17 minutes. Find the probability that it will take more than 70 minutes to complete the test. 0.7035 ...

Bar-eli azar ritov keidar-levin and schein 2007 analyzed

Bar-eli, Azar, Ritov, Keidar-Levin, and Schein (2007) analyzed 286 penalty kicks among professional soccer players. They recorded the direction that the ball was kicked (left, center, right) and the direction that the go ...

An urn contains 5 red and 10 blue balls balls are drawn

An urn contains 5 red and 10 blue balls. Balls are drawn sequentially from urn without replacement. Let X be the number of draws necessary in order to obtain exactly 4 red balls. Find probability mass function of X

A diamond can be classified as either gem qulaity or

A Diamond can be classified as either gem qulaity or industrial grade. Suppose that 92% of diamonds are classified as industrial grade. Would it be unusual if atleast one of five randomly selected diamonds is gem quality ...

A manufacturing company wishes to compare two production

A manufacturing company wishes to compare two production facilities based on Defective units out of total unit production. The company obtains random samples from both facilities. Facility A produced a total of 983 units ...

Aprobability experiment consists of rolling a 6-sided die

A probability experiment consists of rolling a 6-sided die. What is the probability of rolling a number less than 6.

Question a random variable x is known to be distributed

Question: A random variable X is known to be distributed either N(1,3) or N(2,3). The mill hypothesis is that the mean is equal to 1. The alternative hypothesis is that the mean is 2. a. With a sample of 10 draws from th ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert