Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α. Left-tailed test z = -1.83 α = 0.05 A) 0.0336; reject H0 B) 0.0672; fail to reject H0 C) 0.9664; fail to reject H0 D) 0.0672; reject H0

Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to reject H0 for the level of significance α. Left-tailed test z = -1.83 α = 0.05 A) 0.0336; reject H0 B) 0.0672; fail to reject H0 C) 0.9664; fail to reject H0 D) 0.0672; reject H0

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: The mean age of bus drivers in Chicago is 54.5 years. What is the set of hypotheses that should be…

A: It is given that, the population mean is 54.4 years. We have to write the null and alternative…

Q: A random survey of 75 death row inmates revealed that the mean length of time on death row is 17.6…

A: (1) Determine the values of sample mean, standard deviation and the sample size. The values of…

Q: A producer claims that his potato chips weight is at least 150 grams. The weight of the bag has a…

A: Solution: Given information: n= 49 Sample size of bags x=146 gram Sample mean s2=9 gram sample…

Q: "D" size batteries produced by M&M Corporation have had a maximum life expectancy of 350 hours.…

A: we have given that n=81 ,xbar=354 ,s=18 and mu=350 Note : According to bartleby expert guidelines…

Q: If the t-test statistic for a single t-test is 1.58, what can you conclude? A) The test is…

A: It is given that the t-test statistic is 1.58. a. Here, the degrees of freedom or sample size are…

Q: The average annual salary for all U.S. teachers is $47,750. Assume that the distribution is normal…

A: Given Mean=47750 Standard deviations=5680

Q: 2 Use the given confidence interval to find the margin of error and the sample mean. (12.2,21.0) The…

Q: The mean number of hours 49 employees at a certain company worked over the weekend was 6.3. The…

A: GivenMean(x)=6.3standard deviation(σ)=2.5sample size(n)=49α=0.07

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: 2) P-value is calculated by excel command T.DIST.RT (2.51, 219) Thus the p-value is 0.006398.…

A: Introduction - Null hypothesis- The null hypothesis is atypical theory which suggests that no…

Q: It will be tested whether the average endurance time of brand A batteries is more than 60 hours. For…

Q: If a sample of 16 values generates a mean of 14, what is the maximum standard deviation which would…

A: Given that,The one-sample t-test is performed. Population mean Sample size Sample mean Assume the…

Q: potato chips weight is more than 150 grams. The weight of the bag has a normal distribution. Because…

A: Solution: Given information: n= 49 sample size of bags x=146 gram Sample mean s2=9 gram sample…

Q: A researcher makes a research about the life time of batteries which have a normal distribution. In…

A: A researcher randomly selected 49 batteries and calculate its sample mean as 48 hours and the…

Q: two-sample t test at significance level 0.01 to test Ho: H₂-H₂-10 versus H₂ H₁-H₂ < -10 for the…

A: From the provided information,

Q: 4. A survey of 35 adult Americans found the mean age (in years) that people would like to live is…

A: Given: n=35x¯=87.9s=15.5σ2=16

Q: A producer claims that his potato chips weight is more than 150 grams. The weight of the bag has a…

Q: for this Application Exercise: Institutional researchers are interested if pet ownership is equally…

A: Given: The level of significance is α=0.05. Dog 33 Cat 29 Fish 20 Lizard 18

Q: A data set about speed dating includes "like" ratings of male dates made by the female dates. The…

Q: Cans of Coke are filled by a machine to about 12 oz each. A randomly selected 36-pack of cans was…

A: Mean(x)=12.19 standard deviation(s)=0.13 sample size(n)=36 significance level(α)=0.01

Q: a) If we take a random sample of size 17 from this population distributi for wind speeds what…

A: Given: Mean, μ=13.7 Standard deviation, σ=5.8 (a) Sample size, n = 17 If a random sample of size 17…

Q: 6. CI for Differences in Means: Randomly sample 100 observations from N(2,200) and 100 observations…

Q: In a right-tailed test for the mean, is the alternate hypothesis (Ha) that the mean is less than,…

A: 1) In a right-tailed test for the mean Note: According to bartelby question answer guidelines an…

Q: Ho: μ=9.8 and H1: μ>9.8 . Give your decision about the hypothesis testing at 5% significance level…

A: Given that Sample size n =50 Sample mean =10 Sample standard deviation =4.3

Q: 1. An inspector measured the full volume of a simple random sample of n-100 cans of ju that were…

Q: 7.What value of z would you use to caleulate the 98% confidence interval for a population mean,…

A: It is given that the confidence level is 0.98.

Q: Q1) The director is considering introducing new packaging for an existing product. Two styles of…

A: Solution

Q: An HP laser printer is advertised to print text documents at a speed of 18 pm (pages per minute).…

Q: In a test of hypothesis, the null hypothesis is that the population mean is equal to 148 and the…

A: Given: H0: μ=148Ha: μ>148n=40x=156.2s=18.6

Q: Suppose that a randomly sampled GPA of STAT240 students are 2.8, 3.4 and 3.7 (n=3). The population…

A: a) The confidence interval for the population variance is (n-1)s2χα22≤σ2≤(n-1)s2χ1-α22 The level of…

Q: WHO (World Health Organization) states that 1500 cals is the average daily calorie intake for the…

A: Given, Sample mean = x¯ = 1700 + 28 = 1728 Sample standard deviation = s = 900 Sample size = 100 H=…

Q: Suppose that when data from an experiment was analyzed, the P-value for testing Họ: u = 100 versus…

A: Consider that µ is the population mean.

Q: Statistic use A. Z com = -1 Z tab=2.575 Z tab=-2.575 39. What will be the decision? A. Reject Ho B.…

A: Note : As per answering guidelines I have to only one question in case of multiple different…

Q: You obtain a sample chi-square test statistic of -5.49. On the basis of this value, you know that…

A: The chi square test statistic is given as -5.49.

Q: temperatures of 44 healthy aduits 1 to 4 tirmes daly tor 3 days, ota g 200 reasurements. The sampic…

A: Given, sample mean (x̄) =98.4 population mean (µ) = 98.6 sample size (n) = 200 sample standard…

Q: A random sample of 100 private companies locating in Ankara was asked to rate on a scale from 1 (not…

A: The test statistic is, Z=p-PP (1-P)nwherep=sample proportionP=population proportionn=sample size

Q: Use the given confidence interval to find the margin of error and the sample mean. (12.5,21.7) The…

Q: 22. Researchers investigated whether a new process for producing yarn could reduce the mean amount…

A: Given that Researchers investigated whether a new process for producing yarn could reduce the mean…

Q: 3.) What is the critical value for a left-tailed z-test for the mean with 95% confidence?

A: As per bartleby guidelines we can solve only questions and three subparts of the same question if…

Q: The points obtained in the Statistics and Probability oral exam of 11 students chosen at random from…

A: The data shows the points on exam of 11 students.

Q: Consumer Reports stated that the mean time for a Chrysler Concorde to go from 0 to 60 miles per…

A: Solution: From the given information, the claim is that the average time from 0 to 60 miles per hour…

Question

Find the P-value for the hypothesis test with the standardized test statistic z. Decide whether to
reject H0 for the level of significance α.

Left-tailed test
z = -1.83
α = 0.05

A) 0.0336; reject H0 B) 0.0672; fail to reject H0
C) 0.9664; fail to reject H0 D) 0.0672; reject H0

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Sample of 40 sizes were taken from Group A and a sample of 39 sizes were taken from Group B. Group A had a sample average of 3.5 and Group B had a sample average of 3.9. Group A standard deviation is 1.1 and standard deviation of Group B is 1.9. Test to see if there is a statistically significant difference between the average sizes using a 5% level of significance. Which is the most logical conclusion: 1) There is not enough evidence to support that the mean sizes are different or 2) We reject the null hypothesis that there is no difference between the mean sizes? Why?
can you answer 26a and b
The following data are the daily number of minutes of smartphone use for a random sample of 8students at your institution: 117, 156, 89, 72, 116, 125, 101, 100.(You may use t(df=7, 0.05) = -1.895) (a) Test the null hypothesis according to which the true mean is greater or equal to 100 minagainst the alternative that it is less than 100. Use a significance level of 5% (state the test statistic and the conclusion).
Q3) a) What is Mean Squared error (MSE) of an estimator ô ? Show that MSE (Ô) = Variance (Ô ) + (Bias ( ))? b) Suppose that X denotes the mean of a random sample of size n from a normal population with mean u and variance of whereas Y denotes the mean of a random sample of size n from a normal population with mean u and variance ož .Let the estimator for µ be a = aX +(1-a)Y i) Show that A is an unbiased estimator of µ. ii) For what value of a would the variance of this estimator be a minimum? c) Let X be a continuous random variable that is uniformly distributed over (0, B). Find the moment estimator of ß.
10) The average height of males in the freshmen class of a certain college has been 68.5 inches. Is there a reason to believe that there has been no change in the average height if a random sample of 50 males in the present freshmen class has an average height of 69.7 inches with a standard deviation of 2.7 inches? Use a 0.01 level of significance. Solution: I. Statement of the Hypothesis: Но H1 II. Statistical Test: III. Level of Significance and Critical Value: IV. Computed value of Z: V. Conclusion:
4. The amount of juice from a dispenser has a normal distribution with a mean of 240ml. A random sample of 10 glasses of juice dispensed from the machine had a mean of 200ml and a standard deviation of 130 ml. A test was carried out at the 5% level of significance to determine if on average the machine does not dispense 240ml of juice. a) State, in symbols, appropriate null and alternative hypothesis for the test. b) Calculate the critical value for the test. c) Calculate the test statistic. d) State, with reason, your decision and conclusion for this test.
8) x = 20.5, n = 11,o = 7.1, H0: µ = 18.7; Ha: H = 18.7, a = 0.01 A sample mean, sample standard deviation, and sample size are given. Use the one-mean t-test to perform the required hypothesis test about the mean, µ, of the population from which the sample was drawn. Use the critical-value approach. 9) x = 40.9, s = 6.5, n = 15, Hn :H = 32.6, H: p =32.6, a = 0.05. %3D Find the confidence interval specified. had a of 16 ounces. Assume that o = 3.5 ounces.
Suppose the number of observations in a sample is 30, sample mean is 73 and sample standard deviation is 13. Perform a test of null hypothesis is `population mean is equal to 72` and the alternative hypothesis is `population mean is greater than 72`. (Use 5% significance level) a) 0.42: accept the null b) -0.42: reject the null c) 0.25: accept the null d) -0.25: reject the null
A random sample of 64 students from Wharton School was taken and their GPA were recored. The sample mean GPA was 2.8 and the sample standard deviation was 0.5. The population size is 1200. a) Test at %5 significance level that null hypothesis being the population mean GPA is equal to 2.7 against the alternative it is not equal to 2.7. Suppose that population standard deviation is known to be 0.3 for this question. b) Compute the p-value c)Draw the figure showing the areas of Type 1 error, Type 2 error and p- value (it is not necessary to finde Type 2 error.)
4. In the past, the mean running time for a certain type of cell phone battery has been 19.2 hours. The manufacturer has introduced a change in the production method and wants to perform a hypothesis test to determine whether the mean running time has increased as a result. The hypotheses are: Họ: u=19.2 hours H1: µ>19.2 hours Explain the meaning of a Type I error. A) Concluding that u> 19.2 hours when in fact u = 19.2 hours B) Concluding that u 19.2 hours C) Concluding that u = D) Concluding that u> 19.2 hours when in fact u> 19.2 hours 19.2 hours when in fact u > 19.2 hours