Question

1) A researcher would like to determine if any particular age group has a greater than...

1) A researcher would like to determine if any particular age group has a greater than expected risk of influenza-related death. A sample of 50 such cases is categorized according to the victim’s age, with 5 deaths in the under 30 age group, 5 deaths in the 30-60 age group, and 40 deaths in the over 60 age group. In the city from which the sample was selected, 30% of the population is under 30, 40% of the population is 30-60, and 30% is over 60. Answer the following questions: What are the null and alternate hypotheses? What are the expected values for each of the categories? What is the chi-square obtained? What is the critical value? What is your statistical decision? Justify your answer. What is your conclusion?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The data on hospitalizations for swine flu are summarized in the table below. Age Group Under...
The data on hospitalizations for swine flu are summarized in the table below. Age Group Under 5 5 -14 15-29 30-44 45-60 Over 60 Total Hospitalized, Yes 8 12 13 15 0 1 49 Hospitalized, No 47 183 262 57 37 11 597 Total 55 195 275 72 37 12 646 Fill in the table below with the expected counts if Age and Hospitalization are not associated. Age Group Under 5 5 -14 15-29 30-44 45-60 Over 60 Total Hospitalized,...
market researcher tests whether watching a particular soap opera depends on the viewer's age. A random...
market researcher tests whether watching a particular soap opera depends on the viewer's age. A random sample of adult viewers of the The Young and the Restless is collected over a 30-day period; data are presented below:                                                Watched? Viewer's age                 Yes             No 18-25 years 33 40 26-40 78 55 41+ years 18 84 Part a: State the null hypothesis for a two-way chi-square test involving watch status (Yes/No) and viewer's age. [3 points] Part b: What is the expected...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2%                   45             5 to 14 13.6%                   82             15 to 64 67.1%                   288             65 and older 12.1%                   40             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years)       Percent of Canadian Population      Observed Number           in the Village Under 5               7.2%                               43             5 to 14               13.6%                               81             15 to 64                67.1%                               291             65 and older                12.1%                               40             Use a 5% level of significance to test the claim that...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2%                   45             5 to 14 13.6%                   83             15 to 64 67.1%                   280             65 and older 12.1%                   47             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
A researcher would like to determine whether an over-the-counter cold medication has an effect on mental...
A researcher would like to determine whether an over-the-counter cold medication has an effect on mental alertness. A sample of n = 16 participants is obtained, and each person is given a standard dose of the medication one hour before being tested in a driving simulation task. For the general population, scores on the simulation task are normally distributed with μ = 60 and σ = 8. The average score in the sample was M = 63. Can the researcher...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2%                   45             5 to 14 13.6%                   71             15 to 64 67.1%                   298             65 and older 12.1%                   41             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2%                   47             5 to 14 13.6%                   68             15 to 64 67.1%                   295             65 and older 12.1%                   45             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
he age distribution of the Canadian population and the age distribution of a random sample of...
he age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2% 47 5 to 14 13.6% 83 15 to 64 67.1% 280 65 and older 12.1% 45 Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
The age distribution of the Canadian population and the age distribution of a random sample of...
The age distribution of the Canadian population and the age distribution of a random sample of 455 residents in the Indian community of a village are shown below. Age (years) Percent of Canadian Population Observed Number in the Village Under 5 7.2%                   45             5 to 14 13.6%                   74             15 to 64 67.1%                   286             65 and older 12.1%                   50             Use a 5% level of significance to test the claim that the age distribution of the general Canadian population fits the age...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT