The test statistic is The critical value is The conclusion is A. There is sufficient evidence to support the claim that less than 11% of trips include a theme park visit. B. There is not sufficient evidence to support the claim that less than 11 % of trips include a theme park visit.
Q: Use a= .05 and one tailed test t= -5.00, df= 5. reject, fail to reject
A: Given α = 0.05, two tailed test, t = -5 and degree of freedom = 5.For a two tail test if test…
Q: An educational report asserts that 70% of all young adults start planning their career at the age of…
A: Sample proportion (p^) is point estimate of population proportion (p) p^ =xn Test statistic : z =…
Q: Which of these best describes the conclusion we could make using a 5% level of significance? Select…
A: The decision in the hypothesis testing can be made using two important methods. They are the p-value…
Q: Past studies have indicated that the percentage of smokers is estimated to be about 33%. Given the…
A:
Q: and correlation analysis, in what scales of measurement must the variables be expressed?
A: Answer: In order to carry out simple linear regression, we need variety of dependent variables and…
Q: A group of researchers are studying the difference in ethical perceptions between male and female…
A: Given: The number of female students who responded no to cheat in order to get a high grade are…
Q: Sleep apnea is a condition in which the sufferers stop breathing momentarily while they are asleep.…
A: The objective of the question is to test the claim that the percentage of commercial truck drivers…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Claim: The proportion of people over 55 who dream in black and white is greater than the proportion…
Q: In 2005, Health Canada claimed that 16.6% of Canadian adults are obese. A researcher wanted to check…
A: It is a two tailed test.
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Denote p1, p2 as the true population proportions of people, who dream in black and white over the…
Q: A recent survey found that 58% of U.S. adults use their smartphones to research and shop for…
A: The expression is The margin of error is given as 5.3%.
Q: 2. Pick one of the three Measures of Central Tendency and explain a situation which would cause it…
A: The given tendencies are Mean, median, mode
Q: 9. The mean salary for nurses nation wide is u=$62,500 with o-6,000. A sample of 36 nurses in…
A: The random variable salary follows normal distribution. In this problem, we know the population…
Q: A web developer has decided to use a new technique in web design. He divided his accounts into 10…
A: Followings are the Explanation of the question
Q: a. Do you find statistical differences in the average salary between different gender? Explain your…
A: Given: Decision Rule: If F greater than F-criteria then reject null hypothesis. Otherwise, fails to…
Q: In the midst of labor-management negotiations, the president of a company argues that the company's…
A:
Q: Some people are concerned that new tougher standards and high-stakes tests adopted in many states…
A: Given : x = 210 n = 1782 Hypothesis : H0 : p ≤ 0.103 Ha : p > 0.103 p^ = 2101782 p^ = 0.1178 sp^…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The given hypothesis is H0:p1=p2 versus H1:p1>p2.
Q: 3. Who do you think is more outgoing, first-born or later-born siblings? Roher and colleagues (2015)…
A: Anova is the mean significance between the three or more groups. It explain the variation occur…
Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…
A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…
Q: 7 etermine the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Gender and…
A:
Q: Which of the following research situations is most likely to use a two sample independent-measures…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Among 274 people over the age of 55, 76 dream in black and white, and among 323 people under the age…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: A survey claims that 9 out of 10 doctors recommend brand W for their patients who have children. To…
A: Hypothesis Testing: It is basically a comparison of the statistical measures of the data with one…
Q: The following are the average grade of a sample of 20 Senior High School students for the first…
A: Given: α=5% Sample size, n=20 Grade 91 88 93 95 95 85 89 93 89 91 91 92…
Q: Path: p QUESTION 5 Give the mean of the following list of student heights in inches 62 66 67 70 73
A: 5.From the given information, the student heights are 62, 59, 66, 67, 70 and 73.
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Given n1=295 n2=292 X1=74 X2=14
Q: -0.000 d to three decimal places as needed.) is the conclusion based on the hypothesis test? value…
A: Given P1= x1/n1 =66/323 P2= x2/n2 =16/313
Q: Step 2 of 3 : Compute the value of the test statistic. Round your
A: claim : the percentage of commercial truck drivers who suffer from sleep apnea is not 3.1%simple…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: Assume that p1, p2 are the population proportion of people who dream in black and white, over the…
Q: Suppose an influenza vaccine trial carried out during an epidemic. Of 460 adults who took part, 240…
A: Given that, An influenza vaccine trial carried out during an epidemic. Of 460 adults who took part,…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: The random variable X follows binomial distribution. We have to use normal approximation to binomial…
Q: Astudy was conduccled to determine the proportion of people who dream in black and white instead of…
A: Given , People over age 55 : Sample size = n1 = 317 Number of people who dream in black and white =…
Q: S Click here for the Excel Data File a. Specify the competing hypotheses in order to determine…
A: Solution: Given information: n= 78 total observation k= 4 groups SSB= 19.75 Sum of square of…
Q: You want to know what brand of computer students prefer, what statistic is most appropriate
A: In the given problem we have to answer the question of, You want to know what brand of computer…
Q: A national study report indicated that 20.5% of Americans were identified as having medical bill…
A: Given: n= 400 ,x= 95.0 p= 0.205 p̂= 95 / 400
Q: 2. A claim is made that the proportion of adults who text is less than 0.4. Find the test…
A: Given that p=0.40 , n=987 , X=398
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A:
Q: An online bookseller is considering selling an e-reader but will do so only if they have evidence…
A:
Q: Suppose we measure GPA for people in our class, we find the mean is 2.8 and the median is 3.2. What…
A: Given: Mean = 2.8 Median = 3.2
Q: The Bureau of Labor Statistics reports that the official unemployment rate for Black people was…
A: Variables are of different types. The correct classification of variables and the identification of…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: a. Denote p1, p2 as the true population proportions of people, who dream in black and white over the…
Q: a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over…
A: Given that, The two populations are the number of peoples who dream in black and white instead of…
Q: A study was conducted to determine the proportion of people who dream in black and white instead of…
A: a. Denote p1, p2 as the true population proportions of people, who dream in black and white over the…
Step by step
Solved in 3 steps with 9 images
- A research poll included 1614randomly selected adults who were asked whether "global warming is a problem that requires immediate government action." Results showed that 972 of those surveyed indicated that immediate government action is required. A news reporter wants to determine whether these survey results constitute strong evidence that the majority (more than 50%) of people believe that immediate government action is required. Complete parts (a) through (c) below. a. What is the best estimate of the proportion of adults who believe that immediate government action is required? the best estimate is ?The answer should be step by step and the answer should be no plagiarism.According to a report on consumer fraud and identity theft, 22% of all complaints for a year were for identity theft. In that year, Wisconsin had 787 complaints of identity theft out of 3498 consumer complaints. Does this data provide enough evidence to show that Wisconsin had a higher proportion of identity theft than 22%? Test at the 1% level. State the hypotheses. Ho: p? v Ha: p|? v Calculate the test statistic. Round to four decimal places. Calculate the standardized test statistic. Round to three decimal places. Z = Find the p-value. Round to four decimal places. p-value = State your decision. O Since the p-value is less than .01, reject Họ. O Since the p-value is greater than .01, reject Ho. O Since the p-value is less than .01, fail to reject Ho. O Since the p-value is greater than .01, fail to reject Ho. Interpret the results. O At the 1% level of significance, there is enough evidence to show that the proportion of complaints due to identity theft in Wisconsin is not equal to…
- 24. According to the Centers for Disease Control and Prevention (CDC), 26% of Americans are "anti-vax". To verify this, 1,000 Americans were asked and 324 of them said they are "anti-vax". What is the population, sample, statistic, paramter, variable, and constants?If sample data is such that for a one-tailed test of ? you can reject H0 at the 1% level of significance, can you always reject H0 for a two-tailed test at the same level of significance? Explain your answer? A. Yes. If H0 for a one-tailed test is rejected at the 1% level of significance, it will always be rejected for a two-tailed test at the same level of significance. B. No. If H0 for a one-tailed test is rejected at the 1% level of significance, it will never be rejected for a two-tailed test at the same level of significance. C. Yes. The P-value for the two-tailed test could be greater than 0.01. D. No. The P-value for the two-tailed test could be greater than 0.01.B? please
- Consider the relationship between p-values and significance levels. a. Explain why a value of z-statistic that is significant at the 1% level in a one-sided test is always significant at the 5% level. b. Explain why the reverse is not true. If something is significant at the 5% level in a one-sided test it is not necessarily significant at the 1% level.A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 295 people over the age of 55, 64 dream in black and white, and among 312 people under the age of 25, 13 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? O A. Ho: P₁ = P₂ H₁: P₁ P2 O B. Ho: P₁ P₂ H₁: P₁ = P2 O E. Ho: P₁ SP₂ H₁: P₁ P2 OC. Ho: P₁ P2 H₁: P₁ P2 OF. Ho: P₁ H₁: P₁ P₂ P2What statistical analysis could be used to determine whether the unsuccessful dieters attained a significantly different percentage from their weight-loss goal, on average, than did the successful dieters? single-sample t test In which of the following four categories does this situation fall? a. only scale variables b. nominal independent variables, scale dependent variable c. only nominal variables d. any ordinal variables (that cannot be treated as nominal)
- A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 294 people over the age of 55, 63 dream in black and white, and among 300 people under the age of 25, 19 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? A. Ho: P₁ = P2 H₁: P₁ P2 D. Ho: P₁ P2 H₁: P₁ P2 OB. Ho: P1 P2 H₁: P₁ P2 O E. Ho: P1 H₁: P₁ P2 P2 O C. Ho: P₁ P2 H₁: P₁ = P2 OF. Ho: P₁ P2 H₁: P₁ P2A study was conducted to determine the proportion of people who dream in black and white instead of color. Among 323 people over the age of 55, 71 dream in black and white, and among 288 people under the age of 25, 14 dream in black and white. Use a 0.05 significance level to test the claim that the proportion of people over 55 who dream in black and white is greater than the proportion for those under 25. Complete parts (a) through (c) below. Question content area bottom Part 1 a. Test the claim using a hypothesis test. Consider the first sample to be the sample of people over the age of 55 and the second sample to be the sample of people under the age of 25. What are the null and alternative hypotheses for the hypothesis test? A. H0: p1=p2 H1: p1<p2 B. H0: p1≥p2 H1: p1≠p2 C. H0: p1≠p2 H1: p1=p2 D. H0: p1≤p2 H1: p1≠p2 E. H0: p1=p2 H1: p1>p2 Your answer is correct. F. H0: p1=p2 H1:…What is a Type I error in this problem? A. A Type I error would be to conclude that the true mean level of support for sustainability is not 66 when, in fact, the mean is equal to 66. B. A Type I error would be to conclude that the sample mean level of support for sustainability is greater than 66 when, in fact, the sample mean is less than 66. C. A Type I error would be to conclude that the true mean level of support for sustainability is 66 when, in fact, the mean is not equal to 66. D. A Type I error would be to conclude that the sample mean level of support for sustainability is less than 66 when, in fact, the sample mean is greater than 66.