Using traditional methods, it takes 103 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 60 students and observed that they had a mean of 101 hours. Assume the variance is known to be 36. A level of significance of 0.02 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places.

Using traditional methods, it takes 103 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been proposed. A researcher used the technique with 60 students and observed that they had a mean of 101 hours. Assume the variance is known to be 36. A level of significance of 0.02 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer to 2 decimal places.

Name: Using traditional methods, it takes 103 hours to receive a basic driv
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: Using traditional methods, it takes 103 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has beenproposed. A researcher used the technique with 60 students and observed that they had a me

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 height of women ages 20-29 is normally distributed, with a mean of 64 inches. Assume a 2.7…

A: Mean (μ) = 64Standard deviation(σ)=2.7Sample size(n) = 27

Q: A class of students took an exam. The professor noticed that, overall, as a class, they did well…

A: Measure of central tendency measures the central or average value of a dataset. Measures of…

Q: Using the same data from the previous question, what are the range, sum of squares, sample variance,…

A: Range is the difference between Maximum and Minimum value.

Q: An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer…

A: Solution

Q: A company gives the variance in their production of a particular part as 0.051cm. Use the sample…

A: Given: σ02=0.051cmn=32s2=0.08 the significance level is taken as 0.05.

Q: What is NOT a factor that influences researcher degrees of freedom? A. Deciding how large the…

A: Sol:- Answer :- D. Using convenience sampling from the population

Q: There are multiple parts to this question but they'll be uploaded seprately.

A: Step 1Arrange the dataSorted Data Set: 36, 50, 50, 65, 65, 80, 85, 125, 190, 214, 250, 300, 450,…

Q: Dr. Samwell Tarly wants to estimate the number of books checked out of the library in the past year.…

A: It is given that the mean is 10,000 and the standard deviation is 10.

Q: At a=0.05, what is the critical value? -1.984 1.66 -1.645 -1.66

Q: Choose a quantitative variable. Measure it on two different samples of 10, drawn from two different…

Q: The height of women ages 20-29 is normally distributed, with a mean of 64.2 inches. Assume o = 2.9…

A: Mean = 64.2Standard deviation = 2.9Using normal distribution.

Q: Find the standard error, t statics Sample variance = .67 Sample size = 30 Population size = 60…

A: Given information- Sample variance, s2 = .67 So, sample standard deviation, s = 0.819 Sample size, n…

Q: Data and Two-Way ANOVA Results If appropriate, test for an effect from the row factor. Choose the…

A: The question is about two way ANOVA Given : Test stat of Interaction = 3.35172 Test stat of Row…

Q: The accompanying data table lists measures of self-esteem from a student project. The objective of…

A: The test is to check whether there is an interaction between the row and column factors.

Q: An agricultural experiment considered the effects of K2O (potash) on the breaking strength of cotton…

A: Given: 36 K2O lbs/acre 54 K2O lbs/acre 72 K2O lbs/acre 108 K2O lbs/acre 144 K2O lbs/acre 7.62…

Q: A battery manufacturer claims that the mean life of a particular type of their batteries is 500…

A: Since , the sample size is 30. Here , we want to test the claim that the actual mean battery life is…

Q: Click on the Data button below to display the data. Copy the data into a statistical software…

A: Given data, Guernsey Jersey Holstein 4.59 5.03 3.22 5.2 6.55 3.67 5.61…

Q: A value of r2=.09 is considered what for the effect size test of the percentage of variance…

A: Given, r2=0.09

Q: lick the icon to view the TI-83/84 Plus calculator results. Calculator results s the conclusion for…

A: We have given that p-value = 0.1209974555 Level of significance =alpha = 0.05

Q: There is a 0.9087 probability that a randomly selected 27-year-old male lives through the year. A…

A: Note: Since you have posted multiple independent questions in the same request, we will solve the…

Q: Using traditional methods it takes 106 hours to receive an advanced flying license. A new training…

A: We want to test the hypothesis

Q: Do wearable devices that monitor diet and physical activity help people lose weight? Researchers had…

A: A paired t test would be used to check the significant mean difference between two groups.

Q: A manufacturer of chocolate chips would like to know whether its bag filling machine work correctly…

A: Solution-: Given: We find, (a) Hypothesis (type of test) (b) Test statistic (c) Critical value (d)…

Q: State the null and alternative hypotheses in the test for the effect of an interaction between row…

A: The data shows the self-esteem measures for subject and target.

Q: What is the probability of randomly selecting 1 woman with a height less than 65.1 inches? (Round to…

A: The height of women ages 20-29 is normally distributed, with a mean of 64 4 inches. population…

Q: Compare and contrast the two samples measures of central tendency. Compare and contrast the two…

A: Following observations can be made on comparing the central tendencies of the two samples The mean…

Q: Using traditional methods it takes 106 hours to receive an advanced flying license. A new training…

Q: The accompanying data table lists measures of self-esteem from a student project. The objective of…

A: Please find the explanation below. Thank you.

Q: The accompanying table lists distances (mm) between pupils of randomly selected U.S. Army personnel…

A: The results of two-way analysis of variance is given.

Q: The Gidget Company makes widgets. If the production process is working properly, it turns out that…

A: Given See the handwritten solution

Q: Researchers looked at the average number of hours of sleep per day in a group of 8 college…

Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

Topic Video

Question

Using traditional methods, it takes 103 hours to receive a basic driving license. A new license training method using Computer Aided Instruction (CAI) has been
proposed. A researcher used the technique with 60 students and observed that they had a mean of 101 hours. Assume the variance is known to be 36. A level of
significance of 0.02 will be used to determine if the technique performs differently than the traditional method. Find the value of the test statistic. Round your answer
to 2 decimal places.
Enter the value of the test statistic.
I Tables
E Keypad
Answer
How to enter your answer
Keyboard Shortcuts
-3.0
Submit Answer
O 2020 Hawkes Learning
MacBook Air
80
888
DII
F2
F3
F6
%23
&
2
3
4
6
8
Q
E
R
T
Y
P
A
D
F
G
H
J
K
C
V
B
on
command
command
option
.. .-
V

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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Hypothesis Tests and Confidence Intervals for Proportions$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

The accompanying table lists pulse rates. Use a 0.05 significance level and apply the methods of two-way analysis of variance. What is the conclusion? Click on the icon to view the data table. State the null and alternative hypotheses in the test for the effect of an interaction between row and column factors. Ho: There interaction between gender and age. H₁: There interaction between gender and age. Pulse Rates for Gender and Age C Under 30 Years of Age Over 30 Years of Age Female 78 103 78 63 61 98 81 98 91 95 77 75 73 65 71 78 61 71 74 55 Female Male 60 81 56 69 68 74 75 68 63 56 46 70 61 65 91 80 59 58 64 59 Male Print Done D
You work for a soft-drink company in the quality control division. You are interested in the variance of one of your production lines as a measure of consistency. The product is intended to have a mean of 12 ounces, and your team would like the variance to be as low as possible. You gather a random sample of 16 containers. Estimate the population variance at a 80% level of confidence. 11.82 11.83 11.85 11.89 11.9 11.97 12 12 12 12.01 12.02 12.04 12.05 12.11 12.16 12.18 Variance of Data: 0.012 Note: Round all values to 3 decimals and use those rounded values in subsequent calculations. a) Find the lower and upper x critical values at 80% confidence: Lower: Upper: b) Report your confidence interval for o?: Lower Bound: Upper Bound:
Compared to an independent-measures design, a repeated-measured study is more likely to find a significant effect because it reduces the contribution of variance due to ____. a. MD b. the effect of the treatment c. degrees of freedom d. individual differences
A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.
The height of women ages 20-29 is normally distributed, with a mean of 63.8 inches. Assume o = 2.8 inches. Are you more likely to randomly select 1 woman with a height less than 65.2 inches or are you more likely to select a sample of 23 women with a mean height less than 65.2 inches? Explain. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 65.2 inches? (Round to four decimal places as needed.)
The height of women ages 20-29 is normally distributed, with a mean of 64.4 inches. Assume o = 2.4 inches. Are you more likely to randomly select 1 woman with a height less than 65.3 inches or are you more likely to select a sample of 26 women with a mean height less than 65.3 inches? Explain. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 65.3 inches? (Round to four decimal places as needed.) 4 What is the probability of selecting a sample of 26 women with a mean height less than 65.3 inches? (Round to four decimal places as needed.) ... Are you more likely to randomly select 1 woman with a height less than 65.3 inches or are you more likely to select a sample of 26 women with a mean height less than 65.3 inches? Choose the correct answer below. O A. It is more likely to select a sample of 26 women with a mean height less than 65.3…
please provide accurate answer
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"
Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.
The accompanying table lists pulse rates. Use a 0.05 significance level and apply the methods of two-way analysis of variance. What is the conclusion? Click on the icon to view the data table. C State the null and alternative hypotheses in the test for the effect of an interaction between row and column factors. Ho: There is no interaction between gender and age. H₁: There is an interaction between gender and age. What is the value of the test statistic for this test? F = 3.32 (Round to two decimal places as needed.) What is the corresponding P-value of the test statistic, F, for this P-value= (Round to three decimal places as needed.) Pulse Rates for Gender and Age Over 30 Years of Age Under 30 Years of Age Female 78 103 78 63 61 98 81 98 91 95 77 75 73 65 71 78 61 71 74 55 Female Male 60 81 56 69 68 74 75 68 63 56 46 70 61 65 91 80 59 58 64 59 Male D X
What is the correct way to report the results in APA style
Using traditional methods it takes 8.8 hours to receive a basic driving license. A new license training method using Computer-Aided Instruction (CAI) has been proposed. A researcher used the technique on 17 students and observed that they had a mean of 8.4 hours with a variance of 2.89. Is there evidence at the 0.1 level that the technique performs differently than the traditional method? Assume the population distribution is approximately normal. Step 2 of 5 : Find the value of the test statistic. Round your answer to three decimal places.