Question

A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of...

A Pew poll taken in 2010 surveyed 830 people aged 18-29 and found that 166 of them had
one or more tattoos. Can you conclude that the percentage of people aged 18-29 who have a
tattoo is less than 25%?

a) What is the sample proportion?

b) Find the standard error.

c) Write the Hypothesis Test.

d) What kind of test?

e) Draw the bell curve relative to H 0 .

f) Find the z score for the answer you found in part (a).

g) Draw the p-value region on the standard bell curve.

h) Calculate the p-value.

i) What is the result using α = .01?
j) Describe in words the result of your study.

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
according to a 2017 Pew survey, 60% of Americans aged 18-29 say the primary way they...
according to a 2017 Pew survey, 60% of Americans aged 18-29 say the primary way they watch TV is with streaming services. Suppose a random sample of 200 Americans from this age group is selected. 1. How many people in this sample would we expect to watch TV via a streaming service? 2. Verify that the conditions for the central limit theorem have been met. State each condition as part of your verification. 3. Find the standard error for this...
A recent Pew Research poll surveyed U.S. residents to ask about their use of social media....
A recent Pew Research poll surveyed U.S. residents to ask about their use of social media. Of the 156 respondents aged 18 to 22 who use Facebook, 30.7% stated that they updated their Facebook status at least once per day. Is .307 the true proportion parameter p or the point estimate p̂? A. true proportion p B. point estimate p̂ Compute the standard error of the sample proportion, i.e. the standard deviation of the sample proportion. A. 0.032 B. 0.043...
A popular blog reports that 60% of college students log into Facebook on a daily basis....
A popular blog reports that 60% of college students log into Facebook on a daily basis. The Dean of Students at a certain university thinks that the proportion may be different at her university. She polls a simple random sample of 200 students, and 134 of them report that they log into Facebook daily. Can you conclude that the proportion of students who log into Facebook daily differs from 60%? Use the α = .01 level. a) What is the...
Are older men shorter than younger men? According to the National Health Statistics Reports, the mean...
Are older men shorter than younger men? According to the National Health Statistics Reports, the mean height for US men is 69.4 inches. In a sample of 300 men between the ages of 60 and 69, the mean height was 69 inches. Public Health officials want to determine whether the mean height for older men is less than the mean height of all adult men. Assume that the population standard deviation is σ = 2.84. a) Write the hypothesis test....
A polling organization found in 1996 that 57​% of people in a large country are concerned...
A polling organization found in 1996 that 57​% of people in a large country are concerned about global​ warming, up from 54​% in 1995. Results for this poll were based on telephone interviews conducted in 1996​, with a random sample of 1424 adults, aged 18 and​ older, living in the country. Does the increase from 1995 to 1996 show a significant increase in​ concern? Question: Perform the test and find the​ P-value. What is the test​ statistic? ______________________________________________________________ Question: What...
6.36 Diabetes and unemployment: A 2012 Gallup poll surveyed Americans about their employment status and whether...
6.36 Diabetes and unemployment: A 2012 Gallup poll surveyed Americans about their employment status and whether or not they have diabetes. The survey results indicate that 1.5% of the 47,774 employed (full or part time) and 2.5% of the 5,855 unemployed 18-29 year olds have diabetes. (a) Create a two-way table presenting the results of this study. Diabetes No Diabetes Employed Unemployed (b) State appropriate hypotheses to test for independence of incidence of diabetes and employment status. H0: μdiabetes=μemployed Ha:...
20 women and 30 men between 18 to 60 years old and the number of hours...
20 women and 30 men between 18 to 60 years old and the number of hours that they work. These information would be your populations. For each group find the followings: 20 Women Ages = 19, 23, 40, 18, 60, 50, 21, 30, 33, 28, 33, 35, 28, 24, 28, 18, 19, 22, 25, 50 20 women work hours weekly = 40, 24, 30, 31, 19, 10, 21, 5, 40, 9, 8, 40, 37, 12, 20, 40, 20, 10, 40,...