If my p-value = .322 and my significant level is .05, then My Null Hypothesis is rejected and I must accept the Alternative hypothesis My Null Hypothesis is not rejected My Alternative hypothesis becomes the new Null Hypothesis I cannot make a decision until I know my sample size.

Q: Here are two different samples drawn from two different populations: Sample A (n=13) Sample B (n=12)…

A: Given Information: Two different samples are drawn from two different populations. Sample size of…

Q: Suppose a Math test is given to 120 randomly selected third-grade students in New Jersey. The sample…

A: From provided information, math test is given to 120 randomly selected third-grade students in New…

Q: If the sample of parts are measured and the mean of the sample measurements is outside the control…

A: It is given that if a sample of parts are measured and then the mean of the sample falls outside the…

Q: A researcher wanted to check the hypotheses that female students at the college spend more time at…

A:

Q: An educational researcher is analyzing the test scores for statistics students taught using two…

A: The mean difference between the population and the sample is calculated using the z test for larger…

Q: f, in a sample of n=25 selected from a normal​ population, X=58 and S=5​, what is your statistical…

A:

Q: economical concerns being so great, many people are no longer purchasing new vehicles, but are…

A:

Q: True or False: If we increase the significance level α for a test from 0.05 to 0.1, we will have a…

A: We have given that  If we increase the significance level α for a test from 0.05 to 0.1, we will…

Q: Inadequate exposure to outdoor lighting conditions may increase the risk of myopia in children. A…

A:

Q: In a single sample t-test, if the standard error of the mean becomes larger, the risk of committing…

A:

Q: We want to see the effect of sample size and the probabilities of type I and type II errors on each…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: What is the test statistic?

A:

Q: When are p-values negative? when the sample statistic is smaller than the hypothesizec ) never )…

A: Given that  P-value Calculated using statistics.

Q: Even if a treatment has an effect, it is still possible to obtain a sample mean after the treatment…

A: In any hypothesis testing, we fix null and alternative hypotheses then follow the testing procedure…

Q: If a single sample t-test is statistically significant... a. Then the sample mean must have been…

A: We know that if test is statistically significant then we reject the null hypothesis. Based on the…

Q: Even if a treatment has no effect, it is still possible to obtain an extreme sample mean that is…

A:

Q: Use the sample data and significance level to test the claim that the population proportion p is…

A: The following null and alternative hypotheses need to be tested: Ho: p = 0.20Ho:p=0.20 Ha: p…

Q: You conduct a statistical study in order to test whether a new training program has led to any…

A: Answer: Rejection rule: If p-value is is less than or equal to significance level,  then reject the…

Q: The Nero Match Company sells matchboxes that are supposed to have an average of 40 matches per box,…

A: It is given that the match boxes are supposed to have an average of 40 matches per box with σ = 7. A…

Q: 4. Suppose you are testing Ho: µ = 50 versus H1: µ > 50 The sample is large (n = 68) and the…

A: Given information Population mean µ = 50 Sample size n = 68 Significance level α = 0.047 The value…

Q: Even if a treatment has no effect, it is still possible to obtain an extreme sample mean that is…

A: Given that a treatment has no effect, it is still possible to obtain an extreme sample mean that is…

Q: Even if an investigated treatment has an effect it is still possible to obtain a sample mean that is…

A: Given Solution:

Q: A suggestion is made that the proportion of people who have food allergies and/or sensitivities is…

A:

Q: 54% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What would an H0 (Null) look like for an ANOVA? At least one of the sample means is different from…

A: Solution null hypothesis for one-way ANOVA with k groups is H0 : µ1 = ··· = µk. The alternative…

Q: A medical researcher claims that the proportion of people taking a certain medication that develop…

A: Given a hypothesis test to check the proportion of people taking a certain medication that develops…

Q: Very large random samples of Catholics, Protestants, and people with no religious affiliation have…

A: Introduction: Statistical significance and practical significance are not one and the same thing.…

Q: You collect two random samples, one for males and one for females, and calculate the average number…

A: A null hypothesis is deemed true until proven wrong on conducting an experiment.

Q: If population variance o2 = 49 and sample size n = 196 then, standard error S.E.(x) will %3D be…

A:

Q: What can be concluded at the the a = 0.10 level of significance level of significance? a. For this…

A: given data : 15,11,11,13,11,13,15,13,11,11,15

Q: True/false: You are more likely to make a Type I error when using a small sample than when using a…

A: Type I error refers to the probability of rejecting null hypothesis when it is actually true.

Q: Suppose that you want to perform a hypothesis test for a population mean. Assume that the population…

A:

Q: The mean GPA of night students is significantly different than the mean GPA of day students at the…

A: Solution: Yes, significantly different means the difference between the two means is not equal. The…

Q: An aneroid sphygmomanometer is a mechanical device used to measure blood pressure. A simple random…

A: From the given information, the following values are known: Sample size, n=11 Using EXCEL function:…

Q: You want to run a hypothesis test on the proportion of a phenomenon occurring. You make the…

A:

Q: There are two samples with means 15 and 17. Both of those samples consist of 24 observations. Sample…

A: Given Data : For Sample 1 x̄1 = 15.0 s1 = 2.0 n1 = 24 For Sample 2…

Q: A UW Madison professor is interested in learning about the variance of grades for university…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: tate the decision rule for the test if the level of significance is 0.05

A: Given : n1=10 , n2=20  ,α=0.05 Our aim is to state the decision rule for the test if the level of…

Q: A company believes that it controls more than 30% of the total market share for one of its products.…

A: It is given that a company believes that it controls more than 30% of the total market share for one…

Q: The owner of a small pet supply store wants to open a second store in another city, but he only…

A:

Q: Samples are taken from two populations, A and B, with the following results.   A B n 100 200 x-bar…

A: Given Information :  Samples are taken from two populations, A and B, with the following results.…

Q: Suppose that you want to perform a hypothesis test for a population mean. Assume that the population…

A: Population standard deviation is unknown. The sample size is small. The shape of the distribution is…

Q: 56% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Note: Thank you for the question. Since multiple questions are posted, according to our policy, we…

Q: A one-way ANOVA is conducted when comparing a. means from two different samples b. means from three…

A: ANOVA: The ANOVA (analysis of variance) is a test used for comparing the means of several…

Q: You are conducting a study to see if the proportion of voters who prefer Candidate A is…

A: Given,   The sample proportion is,   The null and alternative hypothesis is:

Q: Mark performed a​ two-sample z-test for proportions to test the hypothesis that there was no…

A:

Q: Samples are taken from two populations, A and B, with the following results.   A B n 100 200 x-bar…

A: Null and alternate hypotheses: The investigator is specifically interested to test whether the two…

Q: 27. Table below shows names, gender and GPA of 8 students in a classroom. If you have performed a…

A: Female GPA Male GPA 2.70 2.30 2.60 2.80 2.30 2.20 3.30 3.10

Q: If other factors are held constant, the larger the difference between the two sample means is, the…

A: There are relation between rejection of null hypothesis and which Parameters affect that are defined

Q: Your restaurant believes that the average bill for a party of four exceeds $100.  To test this a…

A: