Answered: State the total degrees of freedom for…

State the total degrees of freedom for the following t-tests: n = 22 for a one-sample t-test df1 = 15, n2 = 20 for an independent measures t-test Critical value = 63.657 for a two-tailed test, alpha

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: Range anxiety is one of the reasons consumers are reluctant to switch to an electric vehicle, and…

A: Given information: x 89 90 91.5 92 92.5 95 95.5 96 93 93.5 94 94 91…

Q: Suppose we want to know whether or not the mean weight between two different species of rat is…

A: According to policy we supposed to answer first three part kindly repost for remaining.

Q: The researchers conducted two single-sample t tests-one for each group comparing its mean to the…

A: The objective is to test the validity of the claims that, if the averages of the Hand-signature…

Q: The following data were obtained from an independent-measures research study comparing three…

Q: A doctor compares three treatments for arthritis. He uses three samples, each of size six, in the…

A: We have given that Three treatment and each treatment having six size .

Q: Do political science classes require less writing than history classes? The 47 randomly selected…

A: Given, Size of the first sample n1=47 Mean of the first sample x1=14.1 Standard deviation of the…

Q: Suppose you carry out a significance test of H0: μ = 8 versus Ha: μ > 8 based on sample size n = 25…

A: Given that µ = 8 n = 25 df = n-1 = 25-1= 24

Q: A company claimed to have developed a new AAA battery that lasts longer than its regular AAA…

A: Given: Sample size = 60 Test statistic = 1.7

Q: The height of women ages 20-29 is normally distributed, with a mean of 63.9 inches. Assume o = 2.8…

A: GIVEN: The height of women ages 20-29 is normally distributed with mean 63.9 inches and standard…

Q: Do political science classes require less writing than history classes? The 48 randomly selected…

A: Given, Let X1 be the random variable such that number of pages written in political science classes.…

Q: An investigation of water plant growth compares the heights (inches) of species of plant growing in…

A: From the given information, Consider, the provided information is as given below: Mean…

Q: andomly selected history classes assigned an average of 16.1 pages of essay writing for the course.…

A: Let X1 be the random variable such that number of pages written in political science classes. x̅1:…

Q: se were randomly selected t

A: Sample Mean 1 (X1)(\bar X_1) = 6.96.9 Population Standard Deviation 1(\sigma_1)(σ1) =…

Q: Summary statistics are given for independent simple random samples from two (2) populations. Use the…

A: From the given information,

Q: The results of a study that used an independent samples t-test was t(28) = 2.14, p = .01. Based on…

A: t(28) means that degree of freedom = 28 Now, degree of freedom for a t-test one sample case = n-1.

Q: The manufacturer claims that your new car gets 35 mpg on the highway. You suspect that the mpg is a…

A: Solution-: Given: x¯=40.4,μ0=35,n=66,s=13.7,α=0.01 We want to find p-value=?

Q: 94, and s The test statistic is 10.20408 The smaller critical number is The bigger critical number…

A: Given data : sample size, n = 6 population standard deviation,σ= 14.0 sample…

Q: Are Republicans more likely than Democrats to display the American flag in front of their residence…

A: Given Information: Republicans: Sample size (n1) = 679 Out of which x1 = 448 displayed the flag on…

Q: A Z-test for single population mean is conducted with Ha: µ < 10, at significance level of 0.05, The…

Q: Using the table below, find the following for the Independent Measures ANOVA… use α= 0.05: dftotal=…

Q: A repeated-measures study comparing two treatments with a sample of n = 4 participants produces MD =…

Q: For this study, we should use Select an answer t-test for the difference between two independent…

A: As per our guidelines, we are allowed to answer thee sub-parts per question. The provided sample…

Q: Decide whether the following scenarios are example of type 1 error or type 2 error or neither? Use…

A: Identify the correct option to determine which type of error occurs. The correct option is…

Q: Do political science classes require the same amount of writing as history classes? The 59 randomly…

Q: Is there a difference between urban and rural jurisdictions in the hiring of female police officers?…

A: We have been given two samples: One sample from Rural and One sample from Urban.

Q: What type of test should you use (determine if a direction is predicted, and if the samples are…

A: As per our guidelines, we are allowed to answer first three sub-parts. Please post other parts…

Q: t(23) = 3.20, p = .01.

A: Given, t(23)=3.20 p=0.01

Q: Which of the following is favorable in a randomized controlled trial? OA. Use of competing…

A: RCTs are considered the gold standard for checking the effectiveness of medical treatments and…

Q: Do political science classes require less writing than history classes? The 47 randomly selected…

A: For this study, we should select a z-test for the difference between two population proportions 1.…

Q: What is the estimated standard error for the independent-measures t statistic for the following two…

A: Given that, For sample 1: n = 4 and S2 = 33.33 For sample 2: n = 8 and S2 = 20 Here, to calculate…

Q: A repeated-measures related samples study is used to compare two treatments with a sample of n=4…

A: The sample standard deviation for the set of difference scores is, sd=SSn-1=484-1=16=4 The sample…

Q: Given a result of t (30) = 1.55 for a one-tailed paired samples t-test, What is the sample size?

A: It is given that t(30) =1.55. That is, t(df) = 1.55 Df = 30

Q: In a one-way ANOVA test, the test statistic is F = 4.25. The rejection region is F > 3.06 for the…

A: The given test statistic is 4.25.

Q: e ascorbic acid concentration of five different brands of orange juice was measured. Six replicate…

Q: Question Heip Listed below are the overhead widths (in cm) of seals measured from photographs and…

A: a)

Q: ind the critical F-value for the following two-tailed Test the difference between variances α= 0.05,…

Q: a. Use an independent-measures t test with α = .05 to determine whether there is a significant mean…

A: Following table contains the Data available: Now we have calculate the standard deviations of the…

Q: Use the following scenario to answer the next 6 questions. An engineer has designed a valve that…

A: Given Information Sample Standard deviation (s)= 1 psi Sample mean = 4.8 Sample size n = 30…

Q: For a repeated measures study comparing two treatments with a sample of n=16 participants, a…

A: The repeated measures t statistic is 2.87 and it is obtained below: From the given information, the…

Q: QUESTION 5 If you know that you have data that follows a normal distribution with a mean of 75 and…

A: Given information- Population mean, µ = 75 Population standard deviation, σ = 17 Let, X be the…

Q: Two sample T for Men vs Women SE Mean A physical therapist wanted to know whether the mean step…

A: To compare the means of two independent population, two sample t-test is conducted. When the…

Question

State the total degrees of freedom for the following t-tests:

n = 22 for a one-sample t-test
df₁ = 15, n₂ = 20 for an independent measures t-test
Critical value = 63.657 for a two-tailed test, alpha = .01

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

In a right-tailed test comparing two proportions, the test statistic was zcalc = +1.5. The p-value is:
comparison of the precisions of two machines developed for extracting juice from oranges is to be made using the following data. Is there sufficient evidence to indicate that there is a difference in the precision of the two machines at the 5% level of significance? Machine A Machine B s2 = 1.4 ounces2 s2 = 3.1 ounces2 n=25 n=20
In a random sample of males, it was found that 25 write with their left hands and 217 do not. In a random sample of females, it was found that 58 write with their left hands and 450 do not. Use a .05 significance level to test the claim that the rate of left-handedness among males is less than that among females. Identify the test statistic.z=?
a. Find the t values that form the boundaries of the critical region for a two-tailed test with ? = .05 for a sample size of n = 12. b. Repeat the above for a one-tailed test, with ? = .05.
The coach of a very popular men’s basketball team claims that the average distance the fans travel to the campus to watch a game is 35 miles. The team members feel otherwise. A sample of 16 fans who travel to games was randomly selected and yielded a mean of M= 36 miles and s= 5 miles. Test the coach’s claim at the 5% (.05) level of significance. one-tailed or two-tailed test: State the hypotheses: df= tα or t value for the critical region = sM = t (test statistic)= Decision:
For a repeated-measures study comparing two treatment conditions, a researcher obtains a sample of n = 10 difference scores with a mean of MD = 6 and a variance of s2 = 90. What is the value for the repeated-measures t statistic for these data? Select one: a. 7 b. 6 c. 2 d. 15
At a .05 “alpha level”, what is the “critical cutoff” z-score for a “two-tailed test”?
One study compared the differences between the expected values of two groups, i.e. tested the null hypothesis that the expected values are equal. The sample size of the first group (x-observations) was 55 and the sample size of the second group (y-observations) was 60. The following data was obtained.X=113.6, Y= 111.7S2x=32.4S2y=30.1Assume large sample sizes and use a test size and two-tailed test appropriate for this setting. Calculate the p-value of the test. Give the answer to two decimal places. Remember the correct decimal separator.
Do political science classes require the same amount of writing as history classes? The 47 randomly selected political science classes assigned an average of 14.5 pages of essay writing for the course. The standard deviation for these 47 classes was 4 pages. The 41 randomly selected history classes assigned an average of 16.7 pages of essay writing for the course. The standard deviation for these 41 classes was 3.6 pages. What can be concluded at the αα = 0.01 level of significance? For this study, we should use The null and alternative hypotheses would be: H0:H0: Correct Correct Correct H1:H1: Correct Correct Correct The test statistic = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.) The p-value is αα Based on this, we should the null hypothesis. Thus, the final conclusion is that ... The results are statistically significant at αα = 0.01, so there is sufficient…
A sample of 100 yielded a test statistic of 2.1. For a level of significance of 0.05, the null hypothesis was rejected. What was the sample proportion for the sample of .1 100? What was the p-value for this test? 0.864
The following data related the rubber percentage of two types of rubber plants, where the sample have been drawn independently. Test for their mean difference. Type 1 6.21 5.70 6.04 4.47 5.22 4.45 4.84 5.84 5.88 5.82 6.09 5.59 6.06 5.59 6.74 5.55 Type II 4.28 7.71 6.48 7.71 7.37 7.20 7.06 6.40 8.93 5.91 5.51 6.36
Which of the following statistical tools have independent samples? Chi-square Mann-Whitney Wilcoxon Paired t test