What is the smallest alpha that you CAN reject the null hypothesis under when you have a p-value of .049?

Q: For a one tailed test in which a treatment is suppose to increase scores, a researcher obtains T(8)…

A: The test statistic value is 1.90.

Q: Suppose researchers draw a sample of 300 breakfast sandwiches from a certain fast-food restaurant,…

A: The null hypothesis that the true mean sodium content is 1000, against the alternative hypothesis…

Q: Find the​ P-value for a​ left-tailed hypothesis test with a test statistic of z=−1.98. Decide…

A: Given that the test statistics is, Z= -1.98 The test is left tailed test. P value: P(Z<z)=…

Q: In conducting a left-tailed hypothesis z-test, the test statistic was determined to be z = -3.21.…

A: Decision rule using p-value : P-value < 0.05 , the result statistical significant. P-value >…

Q: A ressearcher reports that her obtained chi square of -17.56 is significant because it exceeds the…

A: In general, the value of a chi square and critical value cannot be negative because it is based on a…

Q: A public research company says that 63% of U.S. adults are concerned about their jobs because of the…

A: Given, Population proportion = p = 63% = 0.63Sample proportion = p^ =70% = 0.70Sample size = n =…

Q: Nate is conducting a one-sample z-test and sets the alpha to .10.  This means that: Group of answer…

A: Given: α=0.10

Q: In doing a hypothesis test of the population proportion at α=0.02 level of significance, we got the…

A: GIVEN DATA, α=0.02p-value =0.006we have to find out the correct  conclusion for the given data,

Q: Conduct a test at the a = 0.05 level of significance by determining (a) the null and alternative…

A:

Q: Find the​ P-value for a​ left-tailed hypothesis test with a test statistic of z=−1.52.   Decide…

A: We have to use z table to find probability.

Q: In a one-tail hypothesis test where you reject Ho only in the upper tail, what is the p-value if…

A: The given data is as follows:The test is one-tailed and

Q: Which of the following is the correct null hypothesis for an independent-measures t test? µ1 – µ2…

A: We know that,  The null hypothesis is,  µ1 – µ2 = 0  and    The alternative hypothesis is,  µ1 – µ2…

Q: A researcher conducts a hypothesis test using a sample of n = 20 with M = 34 and s 2 = 36 from an…

A: The test is conducted for samples from unknown population. The appropriate test for this scenario is…

Q: A random sample of n=4 individuals is selected from population with µ = 35, and a treatment is…

A: a. The difference between the mean for the treated sample and the mean for the original population…

Q: If a 95% CI for mu is (1.05, 3.95) when sigma is known  a Ztest at alpha=0.05 with a Null…

A: The 95% confidence interval for  is (1.05,3.95).The null hypothesis wants want to state whether the…

Q: Suppose there is a claim that a certain population has a mean, μ, that is different than 6. You want…

A: given data, claim :μ≠6α=0.05hypothesis:H0:μ=6H1:μ≠6critical value:±1.960test statistics:-2.615

Q: QUESTION 8 Find the P-value for the indicated hypothesis test. An article in a journal reports that…

A: The p-value or the probability value helps to decide whether the null hypothesis is rejected or fail…

Q: A hypothesis test with a sample of n = 25 participants produces a t statistic of t = 2.53. Assuming…

A: Given: Sample size n = 25 Test-statistic t = 2.53 Two-tailed test.

Q: Using the information provided in the SPSS output. You are asked to make a decision about whether to…

A: Answer A. Since the p-value is larger than alpha, you do not reject the null hypothesis

Q: A magazine reported that at the top 50 business schools in a region, students studied an average of…

A: Claim : The mean number of hours studied at your school is different from the reported 16.1 hour…

Q: Suppose a random sample of 200 observations from a binomial population has produced p=0.44 and we…

A: Given, Ho:p=0.50Ha:p<0.50 n = 200 p^=0.44

Q: If the hypothesis test results in a p-value of 0.006 would we be able to reject the null hypothesis…

A: The p-value of the hypothesis test is, 0.006 The level of significance is, α=0.05

Q: Conduct a complete hypothesis test: Researchers have often noted increases in nonviolent crime…

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

Q: For this study, we should use z test for a population proportion The null and alternative hypotheses…

A: As per our guidelines, we are allowed to answer first three sub-parts only. Thanks   Given :…

Q: State whether the standardized test statistic t indicates that you should reject the null…

A: We know that if  t  is value of test statistic and tc be critical value for the test at significance…

Q: Is the average time to complete an obstacle course shorter when a patch is placed over the right eye…

A: Suppose μd is the population mean value of the differences of time to complete a course when a patch…

Q: An education researcher claims that 62​% of college students work​ year-round. In a random sample…

A:

Q: A sample has a mean of M = 39.5 and a standard deviation of s=4.3. In a two-tailed hypothesis test…

A: Solution-: Given: M=39.5,s=4.3,tStat=2.14  (Two tailed test) We want to find what is the correct…

Q: A sample of n = 200 college students is asked if they believe in extraterrestrial life and 120 of…

A: Two tailed p-value is   P-value =2× one tailed p-value

Q: If, in a sample of n = 16 selected from a normal population, X= 53 and S= 20, what is the value of…

A:

Q: Pearson Residual is (n1−p)/ 2p. For the ith: (ni−p)/2p . You are conducting a multinomial…

A: Given that ; n = 5 Here we use the chi- square test to solve this problem.  Expected frequency (E) =…

Q: An education researcher claims that 57​% of college students work​ year-round. In a random sample of…

A: Given information

Q: If the alpha value is 0.05 p-value for Z test I get as 1.932146e-05 in excel or R. Null hypothesis…

A: Given: α=0.05p=1.932146e-05

Q: The average effect size in social psychology is around d = 0.21. Conventionally, a sample over 30…

A: The provided information is as follows: d=0.21n1=30n2=30 Consider the significance level α=0.05.

Q: Suppose we are doing a Z test that yielded a test statistic of 2.50 for the hypothesis p > 0.65 A.…

A: GivenTest statistic(z)=2.50hypothesis is p>0.65

Q: Assume we wanted to show that the true proportion of virginica iris seeds that fail to germinate is…

A: The p-value is 0.082. The alpha value is 0.05.

Q: a. Compute the p-value for this test. (Round to four decimal A. p-value = NORM.S.DIST(-2.13,1) =…

A: The p-value for ZSTAT = -2.13 is defined as P-value = P(Z < -2.13)

Q: Which of the following is true about the P-value? A. The P-value is the probability of seeing the…

A: Given: p-value

Q: Each person in a random sample of 400 residents in a major town was asked whether they had ever been…

A:

Q: If other factors are held constant, increasing the alpha level from .01 to .05 will increase the…

A: Level of significance is known as rejection region it deicides the rejection of null hypothesis.

Q: If the decision rule for a one-tailed test of hypothesis is given as: Reject Ho if z<-2.36. What…

A: The decision rule for a one-tailed test of hypothesis is given as: Reject Ho if z<-2.36 The value…

Q: A hypothesis test is performed in which the research (alternative) hypothesis states that more than…

A: Decision rule :  Reject null hypothesis (H0) if p-value less than significance level α Otherwise…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.