Consider the hypothesis test for the mean of a normally distributed population. Ho : u = 100 H : u + 100 A sample of size n = 64 was taken and the sample was was T = 97 and sample standard deviation s = 8. State the conclusion of the hypothesis test with significance level a = 0.05. Reject the null hypothesis. Do not reject the null hypothesis.

Consider the hypothesis test for the mean of a normally distributed population. Ho : u = 100 H : u + 100 A sample of size n = 64 was taken and the sample was was T = 97 and sample standard deviation s = 8. State the conclusion of the hypothesis test with significance level a = 0.05. Reject the null hypothesis. Do not reject the null hypothesis.

Name: Consider the hypothesis test for the mean of a normally distributed p
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Consider the hypothesis test for the mean of a normally distributed population.Ho : µ = 100H1 : u + 100A sample of size n = 64 was taken and the sample was was T = 97 and sample standard deviation s = 8.State the conclusion of the hypothesis test wi

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

Similar questions

As part of your work for an environmental group, you want to see if the mean amount of waste generated per adult in your community is less than the national average of 5 pounds per day. You take a simple random sample of 23 adults in your community and find that they average 4 pounds with a standard deviation of 1.5 pounds. Suppose you know the amount of waste generated per day follows a normal distribution. Test at .10 significance.Round to the fourthH0H0: HAHA: Test Statistic: P-value: Did something significant happen? Select the Decision Rule: There enough evidence to conclude
A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 46.4 milligrams. Assume the population is normally distributed and the population standard deviation is 6.2 milligrams. At a = 0.05, can you reject the company's claim? Complete parts (a) through (e). (a) Identify Ho and Ha. Choose the correct answer below. A. Ho: µ# 45 Hai µ= 45 B. Ho: µ+ 46.4 Hai H= 46.4 %3D O c. H: μ= 46.4 Ha: µ# 46.4 D. Ho: μ246.4 Hai H<46.4 %3D E. Ho: µ= 45 Hai µ#45 ΟF H0 : μ2 45 Ha: p<45 (b) Find the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) O A. The critical value is O B. The critical values are +
It was reported that last year the average price of gallons of gasoline in a city X was $3.15. This year a sample of 50 gas stations had an average price of $3.10 for a gallon. We assume that the population standard deviation of prices is $0.15. We are interested in determining whether this year's mean price is less than last year. Perform a hypothesis test at the level of significance α=0.05.
197.5 and o = 69.4. You intend to draw a A population of values has a normal distribution with u = random sample of size n = 119. Please answer the following questions, and show your answers to 1 decimal place. Find the value separating the bottom 36% values from the top 64% values. Find the sample mean separating the bottom 36% sample means from the top 64% sample means.
A study was done on body temperatures of men and women. The results are shown in the table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. What are the null and alternative hypotheses? OA. Ho: H₁ H₂ H₁: H1 H₂ The test statistic, t, is (Round to two decimal places as needed.) The P-value is . (Round to three decimal places as needed.) State the conclusion for the test. μ n X S Men P₁ 11 97.67°F 0.94°F
Identify the type I error and the type II error that corresponds to the given hypothesis. The proportion of people who write with their left hand is equal to 0.26.
Let x be a random variable representing the SAT math score of student. We may assume that x has a normal distribution and that the population standard deviation is 25. A large university claims the average SAT math score for incoming freshman is 650. You suspect that this claim is too high and decide to test the claim. You select a random sample of 75 incoming freshman and find the sample mean SAT math score to be 645. If you assume that the population mean is 650, find the P-value corresponding to the hypothesis that the average SAT score is less than 650 (i.e. left-tail test). A. 0.037 B. 0.061 C. 0.042 D. 0.053
A sample of 34 observations is selected from a normal population. The sample mean is 45, and the population standard deviation is 5. Conduct the following test of hypothesis using the 0.02 significance level. H0: μ = 46 H1: μ ≠ 46 Is this a one- or two-tailed test? multiple choice 1 One-tailed test Two-tailed test What is the decision rule? multiple choice 2 Reject H0 if −2.326 < z < 2.326 Reject H0 if z < −2.326 or z > 2.326 What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
I didnt mean to select an option on the second portion but I need help solving this.
A data set includes data from student evaluations of courses. The summary statistics are n = 86, x 3.93, s 0.58. Use a 0.10 significance level to test the claim that the population of student course evaluations has a mean equal to 4.00. Assume that a simple random sample has been selected. Identify the null and alternative hypotheses, test statistic, P-value, and state the final conclusion that addresses the original claim. What are the null and alternative hypotheses? O A. Ho: H#4.00 O B. Ho: µ= 4.00 H4: µ=4.00 H4: µ#4.00 O C. Ho: H=4.00 O D. Ho: = 4.00 H,: p> 4.00 H,: H<4.00 Determine the test statistic. (Round to two decimal places as needed.) Determine the P-value. (Round to three decimal places as needed.) State the final conclusion that addresses the original claim. Ho. There is evidence to conclude that the original claim that the mean of the population of student course evaluations is equal to 4.00 correct.
ou can use both the t statistic and the z statistic to test hypotheses about the mean of population. The test that uses the t statistic is typically referred to as a t test, while the test that uses z statistic is commonly called a z test. Which of the following statements are true of the t statistic? Check all that apply. The t statistic does not require any knowledge of the population standard deviation. The t statistic provides an excellent estimate of z, particularly with small sample sizes. The t statistic uses the same formula as the z statistic except that the t statistic uses the estimated standard error in the denominator. The formula for the t statistic is t = (M – μ) / σM
An analyst is testing whether the mean for a population is different than 54. The population is normally distributed with population standard deviation of 13. The analyst takes a sample of size 24 and computes the sample mean to be 50. What is the p-value for the test? (Round to three decimal places.)