What would your decision be on this hypothesis test if we use a level of significance for the test of alpha = .01?

Q: A team of researchers conducted 100 independent hypothesis tests using a significance level of a =…

A: Given that  Total number of independent hypothesis tests done = 100 Significance level (α) = 0.05 =…

Q: We mentioned that if, in a Wilcoxon signed-rank test, an observation equals µ0 (the value given for…

A:

Q: In the situation where there are two binomial parameters of interest and we are interested in their…

A: Let there are 2 binomial variables let say X and Y. And we are interested in their relative…

Q: the difference in the null hypothesis and the alternative hypothesis?

A: In testing of hypothesis, sometimes exact sampling distribution of the test statistic can be…

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: 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: How many standard errors away from the hypothesized healthy population mean of BMI=15 would the…

A: here from given information  sample mean  = 14.5785 sample standard deviation  = 2.25 alpha = 0.01…

Q: Is there an association between teenagers with Back pain and Gender? The study was also conducted…

A: It is needed to test, whether there is an association between teenagers with Back pain and Gender.

Q: Is there enough evidence, at a a = 0.01 level of significance, to show a difference between the…

A: The provided sample means are shown below: Xˉ1=578\bar X_1 = 578 Xˉ2=570\bar X_2 = 570 Also, the…

Q: A Type I error means That I accepted the null hypothesis, when it is really false That I rejected…

A: Here we have to find the meaning of the type I error

Q: An independent-measures research study uses a total of 40 participants to compare two treatment…

A: Given  Total participants =40

Q: If other factors are held constant, explain how increasing the number of scores in each sample…

A:

Q: The Bangor Humane Society tracks dog adoptions closely, and in the past has seen 40% of people who…

A: Solution: From the given information, percentage of people who come in to look at dogs end up…

Q: A humane society claims that less than 71% of households in a certain country own a pet. In a random…

A: From the given information, the sample size (n) is 400, hypothesized proportion p0 is 0.71 and…

Q: Consider the following null and alternative hypotheses: Ho:u = 60 versus H1: µ > 60 Suppose you…

A:

Q: Are blonde female college students less likely to have boyfriends than brunette female college…

A:

Q: What are the critical t values for a one tailed hypothesis test with alpha=0.01 and a sample of n=30…

A:

Q: When is it appropriate to use a z-test, a t-test, and nonparametric tests for one sample or two…

A: A z-test is a test to determine  two population means are different or not when the σ2 are known and…

Q: Is there evidence that the visual reaction time tends to be slower than the auditory reaction time?…

A: a) We will use paired t test in this problem since it is designed to compare the means of the same…

Q: A hypothesis test is conducted with a level of significance of  10%  and the resulting  p  value is…

A:

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

A: Given : n(sample size)=35 μ(population mean age)=6 years x¯(sample mean age)=6.2 years s(sample…

Q: alpha level for

A: Choosing the alpha level for a hypothesis test allows researchers to control the probability of…

Q: If the F-statistic is close to one, what would be the decision of a hypothesis test?

A: The F-statistic is the test statistic for F-tests. In general, an F-statistic is a ratio of two…

Q: Determine the P-value and decide whether at the 5% significance level, the data provide sufficient…

A:

Q: Will the null hypothesis be rejected at a 5% level of significance?

A: Here sample proportion p⏜ = 0.63 Sample size n = 800 Now testing given hypothesis

Q: It is claimed that only 5% of professional golfers are left-handed. Believing this claimed value is…

A: Decision Rule about null hypothesis using p-value : Reject null hypothesis (H0) if p-value less…

Q: A Chicago-based firm has documents that must be quickly distributed between two delivery services,…

A:

Q: It has been determined that 37 out of 100 adult Americans that did not attend college believe in…

A: There are two independent samples which follows normal distribution. We have to test whether the…

Q: Researchers are comparing the intelligence levels of incoming freshmen and graduating seniors.…

A: Assuming that there is a systematic difference in intelligence levels between the two groups and…

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: What decision should the researcher make based on the results of the hypothesis test

A: Test is that whether or not the proportion of high school athletes who go on to play sports in…

Q: If we were going to perform a hypothesis test for the population mean with Ho : µ> 1200 vs H : u<…

A: Given information: μ=1200, σ=400, n=50α=0.05 H0 : μ≥1200HA : μ&lt;1200 The given hypothesis test is…

Q: If we have a sample of size 100 with sample mean breaking strength of 975 pounds from a population…

A: Null hypothesis: µ=1000. Alternative hypothesis: µ&lt;1000. Here, the sample mean, x-bar is 975. The…

Q: A coffee shop relocates to Italy and wants to make sure that all lattes are consistent. They believe…

A: From the given data we calculate mean and standard deviation.  Sample mean = 16.1 Sample standard…

Q: A medical billing specialist claims that the proportion of ER patients who do not have health…

A:

Q: Choosing the alpha level for a hypothesis test allows researchers to control the probability of…

A: I am sorry for your Inconvenience. Please go through the following explanation. In hypothesis tests,…

Q: If an ANOVA test is conducted and the null hypothesis is rejected, what does this indicate?

A: ANNOVA is a statistical technique that assesses potential differences in a scale-level dependent…

Q: Suppose the p-value of a hypothesis test is .0783. At the alpha=.05 level of significance, should…

A: Determine the decision rule. The decision rule is stated below as follows:   From the information,…

Q: A game manufacturer believes they have created a better game to help kids learn to type on a…

A:

Q: What type of hypothesis test should be performed? Select What is the test statistic? Ex: 0.12 : Does…

A: Given information : Sample mean for manufactures A , x̅A = 142 Sample mean for manufactures B , x̅B…

Q: car preference was related to city of birth. So, she polled 200 people who were born in either…

A: Solution To test hypothesis we will use chi square test.

Q: A researcher conducts a one-way ANOVA and obtains a p value of .02 (when alpha = .05). What can you…

A:

Q: What else can be calculated by the TI-83 besides the normal probabili

A: answer of given question is in step 2

Q: 1) If there is a 5% chance of a Type I error what is the alpha value (α)? 2) If there is a 20%…

A: 1) Given: P( Type 1 error)=0.05   Type 1 error is made when we reject the true null hypothesis α=P(…

Q: If you use a 0.10 level of significance in a two-tail hypothesis test, what is your decision rule…

A:

Q: Common Sense Media surveyed 1000 teens and 1000 parents of teens to learn about how teens are using…

A: Solution: Given information: n1=1000 Sample size of teensn2=1000 Sample size of parents x1= 279…

Q: At the 0.01 significance level, we ask if there is a difference in the mean number of times men and…

A: For men, sample sise n1 = 25, sample mean = 23, and population SD = 5 For women, sample size n2 =…