Question

Nationally, 60% of American own American cars, 29% of Americans own Asian cars, and the remaing...

Nationally, 60% of American own American cars, 29% of Americans own Asian cars, and the remaing Americans own non-Asian foreign cars. A survey of 212 people in California finds that 53% own American cars, 35% own Asian cars, and the remaining own non-Asian foreign cars. When testing (at the 10% level of significance) whether the proportions in California are the same as the national proportions, what is the test statistic (please round your answer to 3 decimal places)

Homework Answers

Answer #1

P( american car | American ) = 0.6
P( Asian car | American ) = 0.29
P( non Asian foreign car | American ) = 1 - 0.6 - 0.29 = 0.11

For the above national percentages, the expected values are computed as:

Expected value for American cars = 212*0.6 = 127.2
Expected value for Asian cars = 212*0.29 = 61.48
Expected value for Asian foreign cars = 212*0.11 = 23.32

The test statistic value here is the chi square test statistic value computed as:

Therefore the test statistic value here is 4.556 ( rounded to 3 decimal places )

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
Nationally, 61% of American own American cars, 26% of Americans own Asian cars, and the remaing...
Nationally, 61% of American own American cars, 26% of Americans own Asian cars, and the remaing Americans own non-Asian foreign cars. A survey of 205 people in California finds that 54% own American cars, 31% own Asian cars, and the remaining own non-Asian foreign cars. When testing (at the 10% level of significance) whether the proportions in California are the same as the national proportions, what is the test statistic (please round your answer to 3 decimal places)
7. You wish to test the conventional wisdom that the average age of an American voter...
7. You wish to test the conventional wisdom that the average age of an American voter is 49. You randomly select n = 36 voters, and find a sample mean of 53 with a sample standard deviation of 12. a. Conduct a two-tailed hypothesis test using significance level ? = .05. Clearly state the hypotheses, the test statistic, the p-value, and your conclusion. b. Construct a 95% confidence interval, and explain how the confidence interval confirms your results from part...
We want to compare the average gas mileage of American-made cars vs. Japanese-made cars. The claim...
We want to compare the average gas mileage of American-made cars vs. Japanese-made cars. The claim is that the Japanese cars and American cars do not get the same gas mileage. Use the list data below to test the hypothesis that the Japanese cars and American cars do not get the same gas mileage. The American cars are in list1 and the Japanese cars in list2 below We do not know whether the mileages are normally distributed or not, but...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades:...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades: 65, 60, 67, 71, 75, 80, 65 Use this information to answer questions #1-4. Question 1 (0.5 points) Saved The mode is: Question 1 options: 65 60 There is no modal category 75 71 Question 2 (0.5 points) Saved The median is: Question 2 options: 67 65 80 66 None of the above Question 3 (0.5 points) What is the approximate population variance for...
1.The sample mean is an unbiased estimator for the population mean. This means: The sample mean...
1.The sample mean is an unbiased estimator for the population mean. This means: The sample mean always equals the population mean. The average sample mean, over all possible samples, equals the population mean. The sample mean will only vary a little from the population mean. The sample mean has a normal distribution. 2.Which of the following statements is CORRECTabout the sampling distribution of the sample mean: The standard error of the sample mean will decrease as the sample size increases....
CASE: Sharesies: NZ investment platform Everyday investment company Sharesies was launched in February 2017, after conducting...
CASE: Sharesies: NZ investment platform Everyday investment company Sharesies was launched in February 2017, after conducting research on New Zealanders’ attitudes towards investing. Prior to launching the company, the co-founders interviewed over 200 people asking them “If I gave you $50 right now, and you had to do something with it in the next 5 minutes what would you do?” Only 5 out of 200 people chose an option to save or invest the $50. More popular options were bills,...
MATHEMATICS 1. The measure of location which is the most likely to be influenced by extreme...
MATHEMATICS 1. The measure of location which is the most likely to be influenced by extreme values in the data set is the a. range b. median c. mode d. mean 2. If two events are independent, then a. they must be mutually exclusive b. the sum of their probabilities must be equal to one c. their intersection must be zero d. None of these alternatives is correct. any value between 0 to 1 3. Two events, A and B,...
Note:  100% plagiarism in the above paragraph please remove the plagiarism less than 15 % . CHALLENGES...
Note:  100% plagiarism in the above paragraph please remove the plagiarism less than 15 % . CHALLENGES / OPPORTUNITIES One of the major challenges is to change the people’s perspective of PepsiCo as an unhealthy soft drink producer. Due to the link of soft drinks to obesity and diabetes, the new CEO wants to reinvent Pepsi as a healthy food producer rather than a snacks producer. Although this is a good plan for the PepsiCo to consider, people who are used...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how...
Delta airlines case study Global strategy. Describe the current global strategy and provide evidence about how the firms resources incompetencies support the given pressures regarding costs and local responsiveness. Describe entry modes have they usually used, and whether they are appropriate for the given strategy. Any key issues in their global strategy? casestudy: Atlanta, June 17, 2014. Sea of Delta employees and their families swarmed between food trucks, amusement park booths, and entertainment venues that were scattered throughout what would...
Mattel Responds to Ethical Challenges Business Ethics This case was written by Debbie Thorne, John Fraedrich,...
Mattel Responds to Ethical Challenges Business Ethics This case was written by Debbie Thorne, John Fraedrich, O. C. Ferrell, and Jennifer Jackson, with the editorial assistance of Jennifer Sawayda. This case was developed for classroom discussion rather than to illustrate either effective or ineffective handling of an administrative, ethical, or legal discussion by management. All sources used for this case were obtained through publicly available material. Mattel, Inc. is a world leader in the design, manufacture, and marketing of family...