Using ANOVA, a null hypothesis could look like this: Group of answer choices H0: µ1 =µ2 =µ3 H0: µ1 > µ2 > µ3 H0: µ1 = µ2 > µ3 H0: µ1 ≠ µ2 ≠ µ3
Q: What is the test statistic for this sample? (Report answer accurate to three decimal places.) test…
A: Given that Sample size n = 380 Number of success, X = 215 Level of significance = 0.002
Q: Are freshmen psychology majors more likely to change their major before they graduate compared to…
A: From the provided information,
Q: 3) A undergraduate researcher wanted to know whether enzyme activity of mannose-6-phosphate…
A: ANOVA: The analysis of variance (ANOVA) is used to determine whether there are any statistically…
Q: In a hypothesis test with a significance level of a = 0.01, we should reject the null hypothesis if…
A: The given is level of significance α=0.01 So, in hypothesis testing, we can reject the null…
Q: se a 0.05 level of significance and te: tate the null and alternative hypothe : The two populations…
A: Given starting salaries of Public Accountant and Financial Advisor are: Public Accountant(P)…
Q: significance level of α=0.02α=0.02. H0:p=0.59H0:p=0.59 H1:p<0.59H1:p<
A: The test is left tailed test. The sample proportion is:
Q: Test the claim that the mean GPA of night students is larger than 2.4 at the 0.10 significance…
A:
Q: Test the claim that the mean GPA of night students is larger than 2.4 at the 0.10 significance…
A: R COMMAND HAS GIVEN TO CALCULATE CRITICAL VALUE.
Q: You work for an insurance company and are studying the relationship between types of crashes and the…
A:
Q: that the proportion of people who own cats is significantly different than 20%
A: Given : n=200 , p-hat=0.18 , p0=0.20 , α=0.2 Here , we want to test the claim that the proportion of…
Q: Test the claim that the proportion of people who own cats is smaller than 80% at the 0.05…
A:
Q: Provided below are summary statistics for independent simple random samples from two populations.…
A: The question is about hypo. testing Given : x¯1 = 19s1 = 4n1 = 21x¯2 = 23s2 = 3n2 = 16 To…
Q: What can conclude about the null hypothesis from this dataset of weight gain in mice grouped by…
A: The given data can be written in the form of a two-way table as follows Diet Stress A B C…
Q: Test the claim that the proportion of men who own cats is larger than 20% at the .005 significance…
A: Denote p as the true proportion of men who own cats.
Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…
A: From the provided information, Sample size (n) = 69 From which 57 potential voters prefer candidate…
Q: Test the claim that the mean GPA of night students is smaller than 3 at the .01 significance level.…
A: The test statistic is, The degrees of freedom is, df=n-1 The critical value is computed using t…
Q: When the P - value is equal to the alpha level, the null hypothesis should be accepted.
A: P-value is the probability value which is derived from test statistic and it is useful to decide…
Q: Review the definition and some examples of a random variable. Given that the data from the previous…
A: Given information: Price ($) 178900 218000 239900 142000 183200 279600 199900…
Q: You are conducting a study to see if the proportion of men over 50 who regularly have their prostate…
A:
Q: Test the claim that the proportion of people who own cats is significantly different than 50% at the…
A: Population proportion = p₀ = 0.5 Sample proportion = p̂ = 0.43
Q: est the claim that the proportion of men who own cats is significantly different than 80% at the…
A:
Q: You are conducting a study to see if the probability of catching the flu this year is significantly…
A: From the provided information, level of significance (α) = 0.005 Sample size (n) = 121 Number of…
Q: Test the claim that the proportion of people who own cats is smaller than 40% at the 0.01…
A:
Q: Test the claim that the proportion of men who own cats is significantly different than 60% at the…
A:
Q: Carry out the hypothesis test for the mean of a normally distributed population given the following…
A: Given,H0:μ≥1.6Ha:μ≠1.6sample size(n)=15mean(x¯)=1.8standard deviation(s)=25=5α=0.10
Q: In a random sample of 75 men, 22 men owned cats. The P-value of this sample is (to 4 decimals).…
A:
Q: Test the claim that the mean GPA of night students is larger than 2.6 at the .025 significance…
A:
Q: Test the claim that the proportion of people who own cats is significantly different than 80% at the…
A: Here, the claim is that the proportion of people who own cats is significantly different than…
Q: Test the claim that the mean GPA of night students is larger than 3.1 at the .025 significance…
A: Given Sample mean x̄=3.15, n=55, sample standard deviations s=0.03 , level of significance ɑ=0.025…
Q: 3. A one-tailed hypothesis for a population mean with a significance level equal to .05 will have a…
A: A one-tailed hypothesis test for population mean has been performed.Significance level is The…
Q: You are conducting a study to see if the proportion of men over 50 who regularly have their prostate…
A:
Q: est the claim that the proportion of men who own cats is smaller than 90% at the .05 significance…
A:
Q: A random sample of students attending a large university has been selected. Is there a statistically…
A: Let μ1 denotes the population mean number of books read per year from liberal arts majors, and μ2…
Q: Test the claim that the proportion of men who own cats is significantly different than 20% at the…
A: The random variable owning cats follows binomial distribution. The sample size is 65. The sample…
Q: Test the claim that the proportion of men who own cats is significantly different than 40% at the…
A: Given, Sample size = 25 Sample proportion = 0.32
Q: Utilizing the previous table: A sample of 25 cities have been classified as high or low on their…
A:
Q: ou are conducting a study to see if the proportion of men over 50 who regularly have their prostate…
A:
Q: Test the claim that the proportion of men who own cats is significantly different than 60% at the…
A: The researcher claims that the proportion of men who own cats is significantly different than 60%.
Q: The lowest level of significance to reject the null hypothesis of no linear association between…
A: Rejection rule: Reject the null hypothesis if the p-value is less than the level of significance.
Q: A community college wants to analyze the age and GPA of its students. Here is the data: Age 18 40…
A: A t-test is a type of inferential statistic used to determine if there is a significant difference…
Q: A company has just developed a new antibiotic. 2 percent of children taking competing antibiotics…
A: Solution:
Q: the correct way to report the results of a hypothesis test and a measure of effect size using a…
A: Hypothesis Testing : The hypothesis is an assertion regarding the unknown population parameter. A…
Q: o determine whether a linear relationship exists between stiffness x (mg-cm) and thickness y (mm).…
A: We need to perform the correlation test in the given example.First we find the sample correlation…
Q: HR department wants to make sure that their hiring practices are independent of gender. In other…
A: O E (O-E)^2 (O-E)^2/E 45 44 1 0.022727 32 33 1 0.030303 35 36 1 0.027778 28 27 1 0.037037
Q: Test the claim that the proportion of men who own cats is smaller than the proportion of women who…
A:
Q: Carry out the hypothesis test for the mean of a normally distributed population given the following…
A:
Explanation:Here given the multiple choices and find the null hypothesis using Anova
So here null hypothesis could look like this is option A
Clearly in step2
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Test the claim that the proportion of men who own cats is significantly different than 80% at the 0.01 significance level.The null and alternative hypothesis would be: H0:μ=0.8H0:μ=0.8H1:μ>0.8H1:μ>0.8 H0:μ=0.8H0:μ=0.8H1:μ≠0.8H1:μ≠0.8 H0:p=0.8H0:p=0.8H1:p<0.8H1:p<0.8 H0:μ=0.8H0:μ=0.8H1:μ<0.8H1:μ<0.8 H0:p=0.8H0:p=0.8H1:p>0.8H1:p>0.8 H0:p=0.8H0:p=0.8H1:p≠0.8H1:p≠0.8 The test is: two-tailed left-tailed right-tailed Based on a sample of 35 people, 76% owned catsThe test statistic is: (to 2 decimals)The positive critical value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesisYou are conducting a study to see if the probability of catching the flu this year is significantly different from 0.89. You use a significance level of α=0.005α=0.005. H0:p=0.89H0:p=0.89 H1:p≠0.89H1:p≠0.89You obtain a sample of size n=213n=213 in which there are 204 successes.What is the test statistic for this sample? (Report answer accurate to three decimal places.)test statistic = What is the p-value for this sample? (Report answer accurate to four decimal places.)p-value =Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.02 significance level. (a) The null and alternative hypothesis would be: H0:πN=πD H1:πN<πD H0:μN=μD H1:μN<μD H0:μN=μD H1:μN>μD H0:πN=πD H1:πN>πD H0:πN=πD H1:πN≠πD H0:μN=μD H1:μN≠μD (b) The test is: right-tailed left-tailed two-tailed The sample consisted of 45 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 45 day students, with a sample mean GPA of 3.01 and a standard deviation of 0.03. (c) The t-score is: (Round to 2 decimal places.) (d) The p-value is: (Round to 4 decimal places.) (e) Based on this we conclude: null is plausible strong support for the alternative
- Test the claim that the proportion of people who own cats is significantly different than 80% at the 0.1 significance level.The null and alternative hypothesis would be: H0:μ=0.8H0:μ=0.8H1:μ≠0.8H1:μ≠0.8 H0:p=0.8H0:p=0.8H1:p≠0.8H1:p≠0.8 H0:p≤0.8H0:p≤0.8H1:p>0.8H1:p>0.8 H0:p≥0.8H0:p≥0.8H1:p<0.8H1:p<0.8 H0:μ≤0.8H0:μ≤0.8H1:μ>0.8H1:μ>0.8 H0:μ≥0.8H0:μ≥0.8H1:μ<0.8H1:μ<0.8 The test is: right-tailed left-tailed two-tailed Based on a sample of 200 people, 87% owned catsThe p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesisTest the claim that the mean GPA of night students is larger than 3.2 at the .005 significance level.The null and alternative hypothesis would be: H0:p=0.8H1:p<0.8 H0:p=0.8H1:p>0.8 H0:μ=3.2H1:μ>3.2 H0:μ=3.2H1:μ≠3.2 H0:μ=3.2H1:μ<3.2 H0:p=0.8H1:p≠0.8 Based on a sample of 55 people, the sample mean GPA was 3.22 with a standard deviation of 0.03The test statistic is (to 3 decimals)The critical value is (to 3 decimals)Based on this we fail to reject the null hypothesis reject the null hypothesisTest the claim that the proportion of men who own cats is smaller than 90% at the .05 significance level.The null and alternative hypothesis would be: H0:μ=0.9H0:μ=0.9H1:μ>0.9H1:μ>0.9 H0:p=0.9H0:p=0.9H1:p>0.9H1:p>0.9 H0:p=0.9H0:p=0.9H1:p≠0.9H1:p≠0.9 H0:μ=0.9H0:μ=0.9H1:μ≠0.9H1:μ≠0.9 H0:μ=0.9H0:μ=0.9H1:μ<0.9H1:μ<0.9 H0:p=0.9H0:p=0.9H1:p<0.9H1:p<0.9 The test is: right-tailed two-tailed left-tailed Based on a sample of 65 people, 87% owned catsThe test statistic is: (to 2 decimals)The critical value is: (to 2 decimals)Based on this we: Fail to reject the null hypothesis Reject the null hypothesis I dont understand this.
- If a hypothesis is rejected at significance level α = 0.01, is it possible that the hypothesis is not rejected if the same test was done at significance level α = 0.05 (with everything else staying the same)?(c) Calculate the test statistic. d) Decide whether to reject or fail to reject the null hypothesis. Then interpret the decision in the context of the original claim.Test the claim that the proportion of people who own cats is smaller than 60% at the 0.005 significance level.The null and alternative hypothesis would be: H0:μ=0.6H0:μ=0.6H1:μ≠0.6H1:μ≠0.6 H0:p=0.6H0:p=0.6H1:p≠0.6H1:p≠0.6 H0:p≤0.6H0:p≤0.6H1:p>0.6H1:p>0.6 H0:μ≥0.6H0:μ≥0.6H1:μ<0.6H1:μ<0.6 H0:p≥0.6H0:p≥0.6H1:p<0.6H1:p<0.6 H0:μ≤0.6H0:μ≤0.6H1:μ>0.6H1:μ>0.6 The test is: two-tailed right-tailed left-tailed Based on a sample of 200 people, 51% owned catsThe test statistic is: (to 2 decimals)The p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
- Test the claim that the proportion of men who own cats is significantly different than the proportion of women who own cats at the 0.2 significance level.The null and alternative hypothesis would be: H0:μM=μFH0:μM=μFH1:μM<μFH1:μM<μF H0:pM=pFH0:pM=pFH1:pM<pFH1:pM<pF H0:pM=pFH0:pM=pFH1:pM≠pFH1:pM≠pF H0:pM=pFH0:pM=pFH1:pM>pFH1:pM>pF H0:μM=μFH0:μM=μFH1:μM>μFH1:μM>μF H0:μM=μFH0:μM=μFH1:μM≠μFH1:μM≠μF The test is: right-tailed left-tailed two-tailed Based on a sample of 40 men, 25% owned catsBased on a sample of 20 women, 30% owned catsThe test statistic is: (to 2 decimals)The p-value is: (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis(see attachment) Use technology to conduct a one-factor ANOVA to determine if the group means are equal using α=0.05α=0.05. Group means (report to 2 decimal places): Group 1: Internship: Group 2: Co-op: Group 3: Work Study: ANOVA summary statistics:F-ratio = (report accurate to 3 decimal places)p=p= (report accurate to 4 decimal places)Which is NOT a correct statement about the Null hypothesis a. The average days per week that elementary students lifted weights was the same for 2011 and 2013 b. The average time spent in sedentary behaviors is not different between male and female c. The mean body mass index for adults in County A is not different from the mean body mass index in adults in County B d. The mean sleep time for 4th grade students is different from the mean sleep time for 5th grade students