Professor Jureidini believes that the proportion of people in Southeast Texas that believe that College math...
Professor Jureidini believes that the proportion of people in Southeast Texas that believe that College math should be required for graduation is less that 40%.
Test his claim by conducting a poll and performing a hypothesis test.
What is the Null Hypothesis?
What is the alternate hypothesis?
Describe how you conducted your poll (at least 30 people) and tell me what kind of sample it was (stratified, cluster,...?).
Perform the hypothesis test and give your results at a 95% confidence level.
Homework Answers
Answer
Add Answer to:
Professor Jureidini believes that the proportion of people in
Southeast Texas that believe that College math...
A researcher claims that the proportion of college students who plan to participate in community service...
A researcher claims that the proportion of college students who plan to participate in community service after graduation is greater than 35%. To test this claim, a survey asked 500 randomly selected college students if they planned to perform community service after graduation. Of those students, 195 indicated they planned to perform community service. The following is the setup m the following hypothesis test: H0:p=0.35 Ha:p>0.35 In this example, the p-value was determined to be 0.030. Come to a conclusion...
A USA Today article claims that the proportion of people who believe global warming is a...
A USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.55, but given the number of people you've talked to about this same issue, you believe it is different from 0.55. The hypotheses for this test are Null Hypothesis: p = 0.55, Alternative Hypothesis: p ≠ 0.55. You take a random sample and perform a hypothesis test, getting a p-value of 0.0165. What is the appropriate conclusion? Conclude at the 5%...
The dean of a college is interested in the proportion of graduates from his college who...
The dean of a college is interested in the proportion of graduates from his college who have a job offer on graduation day. He is particularly interested in seeing if there is a difference in this proportion for accounting and economics majors. In a random sample of 200 of each type of major at graduation, he found that 72 accounting majors and 52 economics majors had job offers. Assume pooled estimate of the population proportion and a level of significance...
A USA Today article claims that the proportion of people who believe global warming is a...
A USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.73, but given the number of people you've talked to about this same issue, you believe it is different from 0.73. The hypotheses for this test are Null Hypothesis: p = 0.73, Alternative Hypothesis: p ≠ 0.73. If you randomly sample 21 people and 12 of them believe that global warming is a serious issue, what is your test statistic and...
A study was conducted to determine the proportion of people who dream in black and white...
A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 315 people over the age of 55, 72 dreamed in black and white and among 302 people under the age of 25, 11 dream in black and white. Use a 0.01 significance level to test the claim that the proportion of people over 55 who dream in black and whit is greater than the proportion for those under 25. 1....
A USA Today article claims that the proportion of people who believe global warming is a...
A USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.78, but given the number of people you've talked to about this same issue, you believe it is greater than 0.78. The hypotheses for this test are Null Hypothesis: p ≤ 0.78, Alternative Hypothesis: p > 0.78. If you randomly sample 28 people and 22 of them believe that global warming is a serious issue, what is your test statistic and...
A USA Today article claims that the proportion of people who believe global warming is a...
A USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.59, but given the number of people you've talked to about this same issue, you believe it is less than 0.59. The hypotheses for this test are Null Hypothesis: p ≥ 0.59, Alternative Hypothesis: p < 0.59. If you randomly sample 25 people and 19 of them believe that global warming is a serious issue, what is your test statistic and...
In 1995 the proportion of people who bought cable was 93%. Since the introduction of streaming services, you have reason to believe that that percentage has changed. A sample of 1000 people in 2017 sa...
In 1995 the proportion of people who bought cable was 93%. Since the introduction of streaming services, you have reason to believe that that percentage has changed. A sample of 1000 people in 2017 saw that the percentage of those people who bought cable was down to 63%. Perform the hypothesis test at the 5% significance level. 1. Conduct the test using the rejection region approach or the p-value approach with a significance level of 0.02. 2. Give the 95%...
USA Today article claims that the proportion of people who believe global warming is a serious...
USA Today article claims that the proportion of people who believe global warming is a serious issue is 0.52, but given the number of people you've talked to about this same issue, you believe it is less than 0.52. The hypotheses for this test are Null Hypothesis: p ≥ 0.52, Alternative Hypothesis: p < 0.52. If you randomly sample 29 people and 17 of them believe that global warming is a serious issue, what is your test statistic and p-value?...
Based on information from a previous study, r = 34 people out of a random sample...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
Based on information from a previous study, r = 34 people out of a random sample of n = 101 adult Americans who did not attend college believe in extraterrestrials. However, out of a random sample of n2 = 101 adult Americans who did attend college, '2 = 47 claim that they believe in extraterrestrials. Does this indicate that the proportion of people who attended college and who believe in extraterrestrials is higher than the proportion who did not attend...
Most questions answered within 3 hours.
-
You purchase your daily coffee at the Chemist’s Coffeehouse and
have a choice of two cups:...
asked 2 hours ago -
Which of the following pairs of chemicals could be used to make
a buffer solution?
A.)...
asked 2 hours ago -
Problem 16-51 Sales
Activity Variance (LO 16-3)Odessa, Inc., reports the following
information concerning operations for the...
asked 2 hours ago -
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 =
-30.6 μC,...
asked 3 hours ago -
A graduate student is conducting research in psychology and
needs to obtain the IQ scores of...
asked 3 hours ago -
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 4 hours ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 5 hours ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 5 hours ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 6 hours ago -
1. In eukaryotic cells the genomes of
&
asked 6 hours ago -
The standard enthalpy of propanol (C3H7OH) is -303.0 kJ/mol.
Compute both of the
gross and net...
asked 6 hours ago -
Why PWM using H-bridge for control motor speed is more power
effiecient than the linear amplifier...
asked 6 hours ago