A hypothesis test is conducted with a level of significance of  10%  and the resulting  p  value is  .08 . This means that the test is statistically significant at the relevant level of significance, and the null hypothesis should be rejected.  True  False

Q: Find the critical ? value for a left-tailed test using a significance level of ?=0.04.

A: Obtain the critical value for the left tailed test at the 0.04 level of significance.   The critical…

Q: Using a 5% level of significance and a sample size of 24, what is the critical t-value for a null…

A: Given: Using a 5% level of significance and a sample size of 24, what is the critical t-value for a…

Q: Find a 95 percent confidence interval for the difference between means, where n 1 = 50, n 2 = 36,  X…

A: The (1-α)% confidence interval for the difference between means is given by (assuming unequal…

Q: What would you conclude based on an α=0.05 ​level?   We reject   the null hypothesis and do not…

A: From the previous information, it is known that the p-value is  0.9857. And level of significance is…

Q: Based on a small sample, a significance test may not yield a statistically significant outcome even…

A: In a hypothesis testing of the null hypothesis, H0 against the alternative hypothesis, H1 , the two…

Q: ANOVA is a one-tailed test and we are concerned only with those outcomes in which there is more…

A: Based on the concept of ANOVA, there is more variance between categories than within categories.

Q: when we will be reject the NULL HYPOTHESIS on the basis of

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: For any scenario in which an independent-samples t-test can be used, a one-way ANOVA can be used as…

A: Since both the tests are used to compare the mean response. The only difference is that we use…

Q: In a hypothetical study, it has been investigated whether pain tolerance differs between people with…

A: a) As we van see in the boxplot provided in the question, the pain tolerance levels are not same for…

Q: Using the p-value method, we reject the null hypothesis if the p-value is ___________than or equal…

A: NOTE When p-value≤α=level of significance, then we reject the null hypothesis. When…

Q: Is the proportion of wildfires caused by humans in the south higher than the proportion of wildfires…

A:

Q: For a one-way ANOVA test, suppose that, in reality, the null hypothesis is false. Does that mean…

A: ANOVA: Hypotheses: H0: µ1 = µ2 = µ3 =…= µk. H1: At least one of the µ’s different.

Q: State the statistical hypotheses against a population with a mean of 90 for a one-tailed test where…

A: Given: μ=90 The hypotheses for testing the population mean is given bellow: Null hypothesis: H0:…

Q: Just before the 2004 Democratic National convention, Rasmussen Reports polled 1500 likely voters at…

A: Hello there! here the question "a" asked to share the conclusion for the hypothesis test. So the…

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: A study was done on skull sizes of humans during different time periods. The results are shown in…

A: Solution: Given information: n1= 36 Sample size of 4000 B.Cn2=36 Sample size of A.D 150x1= 132.85…

Q: a.) what is the critical value when the test is one-tailed, the level of significance is 0.05, the…

A: a) Here, the test is one-tailed, the level of significance is 0.05 and the sample size n=34. Degrees…

Q: QUESTION 6 Test the claim that the proportion of people who are confident is smaller than 90% at the…

A:

Q: When conducting a significance test for correlation, if your null and alternative hypothesis are:…

A:

Q: An RA at the University of Baltimore has concluded that the difference between the mean GPA scores…

A: Type 1 error : - We we reject the true Null Hypothesis Type 2 error : - When we accept the false…

Q: A repeated-measures ANOVA has SSwithin treatments = 14 and SSbetween subjects = 8. For this…

A:

Q: What is a p-value and how is it used to make a decision about the null hypothesis? How is the…

A: 1. The p-value or the calculated probability can be defined as the probability of finding the…

Q: What is the appropriate null hypothesis for this test? b. What is the sample size for this data? c.…

A: a) degrees of freedom for groups is 2. Thus, number of treatments is 3. The hypotheses to be tested…

Q: Students in a high school statistics class are investigating the proportion of times a Hershey's…

A: We have to find correct conclusion from available options.

Q: A p-value indicates the probability of a particular sample statistic occurring (or a more extreme…

A: We have to find that given statement is true or false...

Q: Test the claim that the mean GPA of night students is significantly different than 2.1 at the 0.02…

A: Null Hypothesis: H0:μ=2.1 Alternative Hypothesis: H1:μ≠2.1 Given information: μ=2.1n=60x¯=2.09s=0.06

Q: the percentage of adults who approve of labor unions has decreased since​ 1936? What are the…

A: Given : Claim :  The percentage of adults who approve of labor unions has decreased since​ 1936.

Q: In analysis of variance, what is the purpose of the mean square between and the mean square within?…

A: Analysis of variance (ANOVA) is the method used to test the means of three or more groups…

Q: The value for the test statistic for a left-tailed one mean z-test is z= -1.19. Determine the…

A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

Q: For the following cases, you may use either the P-value approach or the rejection region approach to…

A: The provided information are:

Q: A t-test would reject the null hypothesis at a 0.05 significance level. True or False?

A: Note: Hey there! Thank you for the question. As you have specifically asked for the decision…

Q: A pooled variance estimate is useful for two-sample hypothesis tests of a normal mean when the…

A: Solution: The given statement is “A pooled variance estimate is useful for two-sample hypothesis…

Q: State the null and alternative hypotheses for the statistical test described below. Testing to see…

A: Given Information: Testing to see if there is evidence that the correlation between two variables is…

Q: 1) If your p-value is less than a significance level , then your decision is to fail to reject the…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In a study of 811 randomly selected medical malpractice​ lawsuits, it was found that 496 of them…

A: x, The no. of lawsuits dropped or dismissed = 496 n, The total no. of lawsuits = 811 H0: p = 0.5H1:…

Q: a. What is the null hypothesis concerning these variables? b. Are the variances equal across the…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: A significance test is conducted for which the alternative hypothesis states that more than 83…

A: As per the question we have Claim :- More than 83 percent of all adult sea turtles on a certain…

Q: If the decision is to reject the null hypothesis of no difference between twa population proportions…

A: Given that  Null hypothesis (H0) : No difference between two population proportions. Here, In null…

Q: Are Republicans less likely than Democrats to display the American flag in front of their residence…

A: Given that,sample one, x1 =434, n1 =685, p1= x1/n1=0.6336sample two, x2 =468, n2 =687, p2=…

Q: The number of degrees of freedom for the two-sample t-test are the same regardless of whether or not…

A: The degrees of freedom of two sample t test different when ‘population variance are equal’ and…

Q: A hypothesis test for the mean of a population was performed and a p-value was obtained p = 0.044.…

A:

Q: If a treatment is expected to increase scores on a variable for which the mean is expected to be µ =…

A: From the given data:   Alternate Hypothesis: HA: μwith treatment>100

Q: Assuming that the null hypothesis is true, the ______________ is the probability of observing a…

A: Assuming that the null hypothesis is true, the p-value is the probability of observing a value of…

Q: A small p-value means that the probability of obtaining a sample mean more extreme than the one…

A: Given : Statement : A small p-value means that the probability of obtaining a sample mean more…

Q: A large sample size is needed to show significance in a test of two population standard deviation. O…

A: False. Higher sample size allows the researcher to increase the significance level of the findings.…

Q: a.    If a null hypothesis is rejected with a significance level of 0.05, is it also rejected with a…

A: To be reject null hypothesis,  p value must be smaller than alpha.

Q: The data below comes from a university that wanted to see if there was a relationship between High…

A: Given: 3.85 3.22 2.99 3.89 4.1 4 3.5 2.77 3.51 3.44 3 3.94 3.62 4…

Q: If the p-value is less than alpha in a one-tail test, what conclusion can you draw?

A: We need to use the concept of hypothesis testing