Question

In: Math

a random sample of 350 people was taken. it was found that 58 of the people...

a random sample of 350 people was taken. it was found that 58 of the people in the sample favored candidate A. conduct a hypothesis test to determine if the the proportion of the population in favor of candidate A is significantly less that 20%. level of significance is 0.05
state the critical value of the test

Solutions

Expert Solution

## critical value = -1.64

milcah answered 7 months ago
Next > < Previous

Related Solutions

A random sample of 25 people is surveyed, and it was found that they spent an...
A random sample of 25 people is surveyed, and it was found that they spent an average of 32 hours a week watching TV. The standard deviation of their sample was 6 hours. (a) Calculate a 95% confidence interval for the average number of hours spent watching TV per week (population mean µ - using two-tailed distribution). (b) What is the 95% confidence interval for the single 26th person to be surveyed? (c) What is the 95% confidence interval (two-sided...
Exhibit 9-6 A random sample of 100 people was taken. Eighty of the people in the...
Exhibit 9-6 A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determining whether or not the proportion of the population in favor of Candidate A is significantly more than 75%. 32. Refer to Exhibit 9-6. The test statistic is a. 0.80 b. 0.05 c. 1.25 d. 2.00 33. Refer to Exhibit 9-6. The p -value is a. 0.2112 b. 0.05 c. 0.025 d. 0.0156 34. Refer to...
Exhibit 9-6 A random sample of 100 people was taken. Eighty of the people in the...
Exhibit 9-6 A random sample of 100 people was taken. Eighty of the people in the sample favored Candidate A. We are interested in determining whether or not the proportion of the population in favor of Candidate A is significantly more than 75%. 32. Refer to Exhibit 9-6. The test statistic is a. 0.80 b. 0.05 c. 1.25 d. 2.00 33. Refer to Exhibit 9-6. The p -value is a. 0.2112 b. 0.05 c. 0.025 d. 0.0156 34. Refer to...
A random sample of 378 hotel guests was taken at La Mirage and it was found...
A random sample of 378 hotel guests was taken at La Mirage and it was found that 194 requested non-smoking room. Another random sample of 516 hotel guests at Neptune Grand showed that 320 requested non-smoking room. We wan to test the claim that the percentage of guests requesting non-smoking room is different between the two hotels, using significance level 0.05. Round you answer to 3 decimal places.
Exhibit 9-6. a random sample of 100 people were taken. Eighty of the people in the...
Exhibit 9-6. a random sample of 100 people were taken. Eighty of the people in the sample favored candidate A. We are interested in determining whether or not the proportion of the population in favor of candidate A is significantly more than 75%. At a 0.05 level of significance it can be concluded that the proportion of the population in favor of candidate A is ____? Is it significantly greater than 75%, not significantly greater than 75%, significantly greater than...
The Nellie Mae organization found that in a random sample of 100 undergraduate students taken in...
The Nellie Mae organization found that in a random sample of 100 undergraduate students taken in 2004, the average credit card balance was $2169. Suppose sample standard deviation of these credit card balances is $1000. Perform a test to test if the average credit card debt exceeds $2000. a) Identify the population    Identify the variable: Identify the parameter b) Calculate T stat Find P-value with DF
Ten years ago, a random sample of 257 dog owners was taken and it was found...
Ten years ago, a random sample of 257 dog owners was taken and it was found that 146 owned more than one dog. Recently, a random sample of 380 dog owners showed that 200 owned more than one dog. Do these data indicate that the proportion of dog owners owning more than one dog has decreased? Use a 5% level of significance. State the null and alternate hypotheses. Is the test left-tailed, right-tailed, or two- tailed? Identify the appropriate sampling...
A simple random sample of 10 people shopping at Target found a sample mean age of...
A simple random sample of 10 people shopping at Target found a sample mean age of 27 and a sample standard deviation of 4.27 yrs. Can the market research team definitively declare that the mean age of the population of shoppers at Target is less than 30? Suppose that the level of significance is 0.05.
A poll of a random sample of 25302530 people found that 6060​% said that religion is...
A poll of a random sample of 25302530 people found that 6060​% said that religion is at least​ "somewhat important" in their lives. The screen shot to the right shows how a calculator reports the results of a significance test for which the alternative hypothesis is that a majority of people believe religion is at least​ "somewhat important" in their lives. State and interpret the five steps of a significance test in this​ context, using information shown in the screenshot...
In a random sample of 1,000 people, it is found that 7.7% have a liver ailment....
In a random sample of 1,000 people, it is found that 7.7% have a liver ailment. Of those who have a liver ailment, 6% are heavy drinkers, 55% are moderate drinkers, and 39% are nondrinkers. Of those who do not have a liver ailment, 9% are heavy drinkers, 45% are moderate drinkers, and 46% are nondrinkers. If a person is chosen at random, and he or she is a heavy drinker, what is the probability of that person having a...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT