Two sample I for Men vs Women physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 55 men d 73 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then corded. The following results were obtained. Mean StDev Men Women 90% Cl for mu Men (- 10.09, - 2.51) T-Test mu Men = mu Women (vs <) T= - 2.77 P = 0.0032 DF = 125 55 112.3 11.4 73 118.6 14.3 mu Women State the null and alternative hypotheses. Which of the following is correct? A. Ho: H1 = H2; Ha: H1 # H2 B. Ho: H1 = H2; Hạ: H1 > H2 C. Ho: H1 = H2; Hạ: H1

Two sample I for Men vs Women physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 55 men d 73 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then corded. The following results were obtained. Mean StDev Men Women 90% Cl for mu Men (- 10.09, - 2.51) T-Test mu Men = mu Women (vs <) T= - 2.77 P = 0.0032 DF = 125 55 112.3 11.4 73 118.6 14.3 mu Women State the null and alternative hypotheses. Which of the following is correct? A. Ho: H1 = H2; Ha: H1 # H2 B. Ho: H1 = H2; Hạ: H1 > H2 C. Ho: H1 = H2; Hạ: H1

Name: Two sample I for Men vs Womenphysical therapist wanted to know whethe
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: Two sample I for Men vs Womenphysical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 55 mend 73 women to participate in the study. Each subject was required to step up an

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

pick the right answer matching description
Is the proportion of wildfires caused by humans in the south different from the proportion of wildfires caused by humans in the west? 350 of the 519 randomly selected wildfires looked at in the south were caused by humans while 383 of the 500 randomly selected wildfires looked at the west were caused by humans. What can be concluded at the a = 0.01 level of significance? Rectangular Snip a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: Select an answer | (please enter a decimal) Select an answer v Select an answer H1: Select an answer v Select an answer vSelect an answer v (Please enter a decimal) c. The test statistic ? v = (please show your answer to 3 decimal places.)
J In-shop othesis test for the difference between two population proportions 02562 2600368.qx3zqy7 Jump to level 1 The manager of a coffee shop is trying to determine if drive-through customers buy fewer items than customers who come into the shop. The manager randomly samples both populations and calculates the proportion of customers in each that buy three or more items. The results of the data collected are shown below. What are the population parameters? Y Pick Drive-through Successes 27 Successes What is the level of significance? Ex: 0.12 Observations 76 Observations 41 119 0.345 p-hat_1 0.355 p-hat_2 What is the null hypothesis Ho? Pick Confidence Level 0.1429 What is the alternative hypothesis Ha? Pick p-value Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? Pick evidence exists to support the claim that drive-through customers buy fewer items than in-shop customers. 2 p W
The following results are from an independent-measures, two-factor study with n = 10 participants in each treatment condition. Factor A: Factor B: A₁ A₂ B₁ n = 10 M = 4 T = 40 SS = 50 n = 10 M = 5 T = 50 SS = 60 ΣΧ2 = 640 Factor B: B₂ n = 10 M = 1 T = 10 SS = 30 n = 10 M = 2 T = 20 SS = 40
You run a PPM correlation on sprint speed and vertical jump height in NFL running backs and find an r value of 0.89. Your sample has a mean sprint speed of 11 m/s ± 0.3 m/s and a mean jump height of 0.49 m ± 0.3 m. What is the effect size estimate? 2.96 0.89 -35.033 35.033 0.267
Choose the appropriate statistical test. When computing, be sure to round each answer as indicated. A dentist wonders if depression affects ratings of tooth pain. In the general population, using a scale of 1-10 with higher values indicating more pain, the average pain rating for patients with toothaches is 6.8. A sample of 30 patients that show high levels of depression have an average pain rating of 7.1 (variance 0.8). What should the dentist determine? 1. Calculate the estimated standard error. (round to 3 decimals). [st.error] 2. What is thet-obtained? (round to 3 decimals). 3. What is the t-cv? (exact value) 4. What is your conclusion? Only type "Reject" or Retain"
Alpha equals 0.01 level of significance for the given sample data.
Justin wants to know whether a commonly prescribed drug does improve the attention span of students with attention deficit disorder (ADD). He knows that the mean attention span for students with ADD who are not taking the drug is 2.3 minutes long. His sample of 12 students taking the drug yielded a mean of 4.6 minutes. Justin can find no information regarding σx , so he calculated s2x =1.96. a. Identify the independent and dependent variables. b. In a sentence, state the null hypothesis being tested. c. Using symbols, state the null and alternative hypotheses. d. Determine the critical region using a one-tailed test with alpha = .05. e .Conduct the hypothesis test (Do the math and compare the t-critical and t-obtained values). f. State your conclusions in terms of H0 (Should you reject the H0 or fail to reject/accept the H0). g. Based on your analysis, is there a relationship between the drug and attention span?
The number of hours per week that the television is turned on is determined for each family in a sample. The mean of the data is 31 hours and the median is 27.2hours. Twenty-four of the families in the sample turned on the television for 16 hours or less for the week. The 8th percentile of the data is 16 hours. Based on the given information, determine if the following statement is true or false. The first quartile is less than 16 hours.
A random sample of size 21 was taken from a normal population. The sample average was 9.87 and the sample SD was 1.17. At the significance level of 10%, what test should you use for testing whether the population mean equals 9.7? One sample z-test for the population mean. two sample z-test for the population means. One sample z-test for proportions. two sample z-test for proportions. one sample t-test for the population mean. 3 26
An insurance company selected samples of clients under 18 years of age and over 18 and recorded the number of accidents they had in the previous year. The results are shown below. Under Age 18 Over Age 18 n1 = 500 n2 = 600 Number of accidents = 180 Number of accidents = 150 We are interested in determining if the accident proportions differ between the two age groups.Refer to Exhibit 10-11. The value of the test statistic is _____.
A researcher wants to know if male and female college students differ with regard to their GPAs. She randomly gets 16 male and 16 female college students to report their GPAs. The males reported a mean GPA of 3.05 with a SS = 3.75. The females reported a mean GPA of 3.1 with a SS = 2.4. You are going to be conducting an independent samples t-test. Compute the independent samples t-statistic: