Question

In: Statistics and Probability

The following data represent the level of happiness and level of health for a random sample...

The following data represent the level of happiness and level of health for a random sample of individuals from the General Social Survey. A researcher wants to determine if health and happiness level are related. Use the αα = 0.05 level of significance to test the claim.

Health

Excellent Good Fair Poor
Very Happy 271 261 82 20
Pretty Happy 247 567 231 53
Not Too Happy 33 103 92 36

*Source: General Social Survey

1) Determine the null and alternative hypotheses. Select the correct pair.

  • Ho:Ho:Health and happiness are independent
    Ha:Ha: Health and happiness are dependent
  • Ho:Ho: Health and happiness have the same distribution
    Ha:Ha: Health and happiness follow a different distribution

2) Determine the test Statistic. Round your answer to two decimals.

χ2 =

3) Determine the p-value. Round your answer to four decimals.

p-value =

4) Make a decision.

  • Fail to reject the null hypothesis
  • Reject the null hypothesis

5) Pick a conclusion.

  • There is sufficient evidence to support the claim that health and happiness are related
  • There is not sufficient evidence to support the claim that health and happiness are related

Solutions

Expert Solution

Excel:

Data --> Megastat --> Chi square --> Chi-square Contingency Table Test for Independence

Output:

1)

Ho:Health and happiness are independent
Ha: Health and happiness are dependent

2)

χ2 = 182.17

3)

P-value = 0.0000

4)

Reject the null hypothesis (since P-value = 0 <0.05=alpha)

5)

  • There is sufficient evidence to support the claim that health and happiness are related

Related Solutions

The data table represent the level of happiness and level of health for a random sample...
The data table represent the level of happiness and level of health for a random sample of individual from the General Social Survey. Does the evidence suggest that health and happiness are related at the α = 0.05 significance level? Health Happiness Excellent Good Fair Poor Very happy 271 261 82 20 Pretty happy 247 567 231 53 Not too happy 33 103 92 36 a) Circle the Type of Test that should be performed: 2-Propotion, Z-test Difference of 2...
1) The following data represent the level of happiness and level of health for a random...
1) The following data represent the level of happiness and level of health for a random sample of individuals from the General Social Survey. A researcher wants to determine if health and happiness level are related. Use the αα = 0.05 level of significance to test the claim. Health Excellent Good Fair Poor Very Happy 271 261 82 20 Pretty Happy 247 567 231 53 Not Too Happy 33 103 92 36 *Source: General Social Survey 1) Determine the null...
The following data represent the level of health and the level of education for a random...
The following data represent the level of health and the level of education for a random sample of 1504 residents. Complete parts​ (a) and​ (b) below. Education Excellent Good Fair Poor Not a H.S. graduate 89 151 52 112 H.S. graduate 86 101 53 100 Some college 81 132 66 108 Bachelor Degree or higher 58 147 60 108 ​(a) Does the sample evidence suggest that level of education and health are independent at the alphaequals0.05 level of​ significance? Conduct...
The following data represent the level of health and the level of education for a random...
The following data represent the level of health and the level of education for a random sample of 1504 residents. Complete parts​ (a) and​ (b) below. Education Excellent Good Fair Poor Not a H.S. graduate 89 151 52 112 H.S. graduate 86 101 53 100 Some college 81 132 66 108 Bachelor Degree or higher 58 147 60 108 ​(a) Does the sample evidence suggest that level of education and health are independent at the alphaequals0.05 level of​ significance? Conduct...
The following data represent the level of health and the level of education for a random...
The following data represent the level of health and the level of education for a random sample of 1815 residents. Education Excellent Good Fair Poor Not a H.S. graduate 105 148 105 116 H.S. graduate 118 129 110 119 Some college 116 146 117 124 Bachelor Degree or higher 68 142 59 93 Make the proper conclusion. Choose the correct answer below. A. Fail to reject H0. There is sufficient evidence that level of education and health are associated. B....
The following data represent the highest level of education and belief in Heaven for a random...
The following data represent the highest level of education and belief in Heaven for a random sample of adult Americans. Yes, definitely Yes, probably No, probably not No, definitely not Total Less than high school 316 66 21 9 412 High school 956 296 122 65 1439 Bachelor’s 267 131 62 64 524 Total 1539 493 205 138 2375 Construct a relative frequency marginal distribution. What proportion of adult Americans in the survey definitely believe in Heaven? Construct a conditional...
The following data represent the battery life, in hours, for a random sample of ten full...
The following data represent the battery life, in hours, for a random sample of ten full charges on ipod music player. 7.3 10.2 12.9 10.8 12.1 6.6 10.2 9.0 8.5 7.1 a) construct a 90% confidence interval for the mean number of hours the battery will last on this player. b) Suppose you wanted more accuracy. What can be done to increase the accuracy of the interval without changing the level of confidence? thank you.
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts​ (a) through​ (d) below. 5.30 5.72 4.99 4.80 5.02 4.57 4.74 5.19 5.29 4.76 4.56 4.91 ​(a) Determine a point estimate for the population mean. A point estimate for the population mean is nothing. ​(Round to two decimal places...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts​ a) through​ d) below. 5.05 5.72 5.24 4.80 5.02 4.59 4.74 5.19 5.29 4.76 4.56 5.70 LOADING... Click the icon to view the table of critical​ t-values. c) Construct and interpret a 99​% confidence interval for the mean pH...
The following data represent the pH of rain for a random sample of 12 rain dates....
The following data represent the pH of rain for a random sample of 12 rain dates. A normal probability plot suggests the data could come from a population that is normally distributed. A boxplot indicates there are no outliers. Complete parts​ (a) through​ (d) below 5.58 5.58 5.72 5.24 5.24 4.80 5.02 5.03 5.03 4.74 5.19 4.87 4.87 4.76 4.56 4.91 4.91 ​(a) Determine a point estimate for the population mean. A point estimate for the population mean is nothing....
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT