In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We have also specified whether the test is two tailed, left tailed, or right tailed. Determine the P-value in each case and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis. Two-tailed test: a. z = -1.66 b. z = 0.52

Question

In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We have also specified whether the test is two tailed, left tailed, or right tailed. Determine the P-value in each case and decide whether, at the 5% significance level, the data provide sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis.

Two-tailed test:

a. z = -1.66 b. z = 0.52

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: A,B, and C are mutually exclusive events such that P(A) = 0.2,P(B) = 0.6, and P(C) = 0.1. Find P(A o...

A: The formula for P(A or B or C) is given below:

Q: A variable is normally distributed with mean 10 and standard deviation 3. Find the percentage of all...

A: a.The percentage of all possible values of the variable that lie between 6 and 7 is obtained below:

Q: Grade Prediction. The Statistics Department at a large university would like to predict the final gr...

A: Predictor variable :- It is the independent variable in the regression equation, which explains the ...

Q: find a point estimate for the population standard deviation (i.e., the standard deviation of the var...

A: Click to see the answer

Q: Job Applicants The Society for Human Resource Management conducted a survey of 347 human resource pr...

A: a)Here, the number of respondents or the human resource professionals are 347 and 73% reported that ...

Q: Guilty or Innocent? In the U.S. court system, a defendant is assumed innocent until proven guilty. S...

A: Click to see the answer

Q: Answer true or false to the following statement, and give a reason for your answer: If a 95% confide...

A: It is given that the 95% confidence interval for a population mean is from 33.8 and 39.0.

Q: A simple random sample is taken from a population and yields the following data for a variable of th...

A: Point estimate:Point estimate is the single value obtained from point estimation on a set of sample ...

Q: Suppose that you have obtained data by taking a random sample from a population and that you intend ...

A: If the level of confidence increases then the standard error of statistic also increases. The margin...

Q: Organ Donors USA Today provided information about a survey of 5100 adult Internet users. Of the resp...

A: a.The percentage of respondents said that they are willing to donate organs after death is,

Q: Two thousand frequent business travelers were asked which Midwestern city they prefer: Indianapolis,...

A: The frequency table for the given data is shown below:

Q: Testing for Content Accuracy. A brand of water-softener salt comes in packages marked “net weight 40...

A: a)The probability that the weight of one randomly selected bag of water-softener salt will be 39 lb ...

Q: In each of Exercises, use the technology of your choice to decide whether applying the t-interval pr...

A: The sample size (n) 10 is small, therefore, the t-interval procedure to obtain a confidence interval...

Q: A committee of 5 is to be selected from a group of 6 men and 9 women. If the selection is made rando...

A: The total number of women is 9.The total number of men is 6.The number of people selected at random ...

Q: In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We h...

A: a)P-value:Here, z= –1.84.

Q: Independent Events Based on a Pitney Bowes survey, when 1009 consumers were asked if they are comfor...

A: Given number of consumers selected for sample without replacement = 30As they are selected without r...

Q: In a population of 500 adult Swedish males, medical researchers find their brain weights to be appro...

A: It is given that the mean is 1,400 and the standard deviation is 100.

Q: Mortgage Industry Employees. In an issue of National Mortgage News, a special report was published o...

A: a)Step-by-step procedure to obtain the normal probability plot using the MINITAB software:Choose Gra...

Q: In p--> what is the conclusion

A: Note:Hey there! Thank you for posting the question. Since the question is not clear we have obtained...

Q: Regarding the criterion used to decide on the plane that best fits a set of data points in k + 1 dim...

A: (a) The least-square criterion is the criterion which helps in determining the best fitting line of ...

Q: A variable of a population has a mean of µ = 35 and a standard deviation of σ = 42. a. If the variab...

A: a.Sampling distribution of a sample mean:

Q: In each of Exercises, assume that the population standard deviation is known and decide whether use ...

A: Click to see the answer

Q: Table IV in Appendix A contains degrees of freedom from 1 to 75 consecutively but then contains only...

A: a)The entries for all possible degrees of freedom are not provided  because we can determine the t v...

Q: Identity Theft with Credit CardsCredit card numbers typically have 16 digits, but not all of them ar...

A: a.The number of ways in which 10 digits can be generated is, 1016 ways.The probability of randomly g...

Q: Roulette. An American roulette wheel consists of 38 numbers, of which 18 are red, 18 are black, and ...

A: Total numbers in roulette = 38numbers in red =18numbers in black = 18numbers in green = 2If the ball...

Q: what does ss tell us about a set of data? under what circumstances will the value equal 0? Can SS ev...

A: Click to see the answer

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarize...

A: Given data

Q: "This is a lie". Is this a paradox ?

A: "This is a lie"Assume it is true that it is a lie, then actually it is a lie indeed and it cannot be...

Q: Diastolic blood pressure in adults is normally distributed with m = 80 mm Hg and s = 12 mm Hg. In a ...

A: The probability that diastolic blood pressure below 70 mm Hg is,

Q: For a normally distributed variable, what is the relationship between the percentage of all possible...

A: Justification:From the given information, it can be observed that the relationship between percentag...

Q: True or false: The mean of a normal distribution has no effect on its spread. Explain your answer.

A: The parameter mean affects where the normal curve is centered.

Q: help

A: Selection of number of classes:“2 to the k rule” suggests that the number of classes is the smallest...

Q: Which interval is wider: (a) the 95% confidence interval for the conditional mean of the response va...

A: Justification:Confidence interval:

Q: What a Word! One of the longest words in standard statistics terminology is “homosce-dasticity.” How...

A: Solution: We are given  the longest words in standard statistics terminology is “homosce-dasticity.W...

Q: Why should you generally expect some error when estimating a parameter (e.g., a population mean) by ...

A: Solution: We have to determine why should we generally expect some error when estimating a parameter...

Q: In each of Exercises, assume that the population standard deviation is known and decide whether use ...

A:  The following assumptions are required for the large sample confidence interval about the mean to b...

Q: Designing Experiment Clinical trials of Nasonex involved a group given placebos and another group gi...

A: Combination Rule:There are n different items and r number of selections and the selections are made ...

Q: Does the sample size have an effect on the standard deviation of all possible sample means? Explain ...

A: Sampling distribution of a sample mean:

Q: Briefly, for a normally distributed variable, how do you obtain the percentage of all possible obser...

A: The procedure for obtaining the percentage of all the possible observations that lie within the spec...

Q: The following table shows the results of a one-way analysis of variance comparing three treatment co...

A: Given that, there are three treatments and a sample of 11participants in each treatment.The complete...

Q: Determine whether the argument is valid or not.  Premises: If you do not study, you cannot do th...

A: Statements:Consider the following:p: You do not studyq: You cannot do the homework.r: You cannot pas...

Q: Identify the two types of incorrect decisions in a hypothesis test. For each incorrect decision, wha...

A: There are two types of errors in Hypothesis testing. They are,Type I error:Probability of rejecting ...