Part 1: Select the type of analysis required to test the effects of make of car...
Part 1:
Select the type of analysis required to test the effects of make of car and type of gasoline on mileage per gallon:
(a) one-factor ANOVA
(b) goodness-of-fit
(c) two-factor ANOVA
Part 2: To test whether the distribution of sample outcomes match an hypothesized distribution, the appropriate test is:
(a) one-factor ANOVA
(b) two- factor ANOVA
(c) goodness –of fit
Part 3: A normal distribution has a mean of 100 and a standard deviation of 10. A Z-score of -2 corresponds to a data value of:
(a) 120
(b) 80
(c) 140
(d) 60
Homework Answers
Add Answer to:
Part 1:
Select the type of analysis required to test the effects of make
of car...
1. A survey was done by a car manufacturerc group of 500 individuals was asked whether they purch...
1. A survey was done by a car manufacturerc group of 500 individuals was asked whether they purchased their car because of its appearance, its performance ratings, or its fixed price (no negotiating). The given in the following table: results are COST 35 65 OWNER/CRITERIA PERFORMANCE 50 170 APPEARANCE Male Female 100 80 (a) Compute the expected frequency for each entry tate the null and alternative hypotheses if you were to test whether there difference in the proportions using the...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reje...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reject the null hypothesis. a) true b) false 43. A chi-square goodness-of-fit test is always conducted as: a. a lower-tail test b. an upper-tail test d. either a lower tail or upper tail test e. a two-tail test 44. A left-tailed area in the chi-square distribution...
For the following questions, identify the type of test that should be used. Simply use the...
For the following questions, identify the type of test that should be used. Simply use the corresponding letter: A) One-sample z test (for a mean); B) One-sample t-test; C) One-sample z-test for a proportion (or a chi-squared goodness-of-fit); D) Chi-square goodness of fit (and a z-test is not appropriate); E) Two-sample z-test for a difference between proportions (or a chi-squared test for independence); F) Chi-square test for independence (and a z-test is not appropriate); G) Simple regression; H) Multiple regression;...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
For the following questions , identify the type of test that should be used. Simply use...
For the following questions , identify the type of test that should be used. Simply use the corresponding letter: A) One-sample z test (for a mean); B) One-sample t-test; C) One-sample z-test for a proportion (or a chi-squared goodness-of-fit); D) Chi-square goodness of fit (and a z-test is not appropriate); E) Two-sample z-test for a difference between proportions (or a chi-squared test for independence); F) Chi-square test for independence (and a z-test is not appropriate); G) Simple regression; H) Multiple...
1. A researcher intends to use a Chi2 test for Goodness of Fit to determine whether...
1. A researcher intends to use a Chi2 test for Goodness of Fit to determine whether there is any preference between 10 brands of cookies. What is the critical Chi2 value for a sample of n = 300 participants and p < .01? A. 20.48 B. 11.07 C. 16.92 D. 18.31 E. 21.67 2. A researcher conducted a study on a sample of n = 80 undergraduates to evaluate preferences among students for four different textbooks for the Introduction to...
One-Way ANOVA and Randomized Black Experiment (Two-Way ANOVA) An automotive engineer wanted to determine whether the...
One-Way ANOVA and Randomized Black Experiment (Two-Way
ANOVA)
An automotive engineer wanted to determine whether the octane of gasoline used in a car increases gas mileage. He selected six different brands of car and assigned a driver to each car. Then 5 gallons of the gasoline selected was placed in the car. The car was driven around a closed track at 40 miles per hour until it ran out of gas. The number of miles driven was recorded and then...
please answer questions clearly Part 3: Which Test Should You Use? scenarios. Your task is to determine which statistical test is most appropriate a), and to explain why you chose that statistic...
please answer questions clearly
Part 3: Which Test Should You Use? scenarios. Your task is to determine which statistical test is most appropriate a), and to explain why you chose that statistical test (part b). Consider things variables, scores vs. frequencies, number of groups, and what we know (or don not Below are 8 research Directions: Below are8 to test each research like continuous vs. nominal know) about various populations Your which statistical test to use. There are 12 options...
Suppose you wish to test if a number cube (die) is loaded or not. If the...
Suppose you wish to test if a number cube (die) is loaded or not. If the die is not loaded, the theoretical probabilities for each roll should be: 1 2 3 4 5 6 16 2/3 % 16 2/3 % 16 2/3 % 16 2/3 % 16 2/3 % 16 2/3 % You roll the die 93 times and come up with the following distribution: 1 2 3 4 5 6 15 13 21 14 15 15 What...
Question 6 (1 point) In JMP, to conduct a Hypothesis Test about one proportion using a...
Question 6 (1 point) In JMP, to conduct a Hypothesis Test about one proportion using a Z-test Use Analyze > Distribution. Then select the variable and then at the red triangle, select Test Probabilities and enter the hypothesized value in the dialogue box. Go to Add Ins. Select Hypothesis Test for One Proportion from the list, select Raw or Summarized data, pick the column that contains the variable and then type in the value associated with success EXACTLY the way...
1. A survey was done by a car manufacturerc group of 500 individuals was asked whether they purchased their car because of its appearance, its performance ratings, or its fixed price (no negotiating). The given in the following table: results are COST 35 65 OWNER/CRITERIA PERFORMANCE 50 170 APPEARANCE Male Female 100 80 (a) Compute the expected frequency for each entry tate the null and alternative hypotheses if you were to test whether there difference in the proportions using the...
a) true b) false 42. For a chi-square distributed random variable with 10 degrees of freedom and a level of sigpificanoe computed value of the test statistics is 16.857. This will lead us to reject the null hypothesis. a) true b) false 43. A chi-square goodness-of-fit test is always conducted as: a. a lower-tail test b. an upper-tail test d. either a lower tail or upper tail test e. a two-tail test 44. A left-tailed area in the chi-square distribution...
The chi-square goodness of fit test can be used when: Select one: a. We conduct a multinomial experiment. b. We perform a hypothesis test to determine if a population has a normal distribution. c. We perform a hypothesis test to determine if two population variances significantly differ from each other. d. We conduct a binomial experiment. The x statistic from a contingency table with 6 rows and five columns will have Select one: a. 24 degrees of freedom b. 50...
One-Way ANOVA and Randomized Black Experiment (Two-Way
ANOVA)
An automotive engineer wanted to determine whether the octane of gasoline used in a car increases gas mileage. He selected six different brands of car and assigned a driver to each car. Then 5 gallons of the gasoline selected was placed in the car. The car was driven around a closed track at 40 miles per hour until it ran out of gas. The number of miles driven was recorded and then...
please answer questions clearly
Part 3: Which Test Should You Use? scenarios. Your task is to determine which statistical test is most appropriate a), and to explain why you chose that statistical test (part b). Consider things variables, scores vs. frequencies, number of groups, and what we know (or don not Below are 8 research Directions: Below are8 to test each research like continuous vs. nominal know) about various populations Your which statistical test to use. There are 12 options...
Question 6 (1 point) In JMP, to conduct a Hypothesis Test about one proportion using a Z-test Use Analyze > Distribution. Then select the variable and then at the red triangle, select Test Probabilities and enter the hypothesized value in the dialogue box. Go to Add Ins. Select Hypothesis Test for One Proportion from the list, select Raw or Summarized data, pick the column that contains the variable and then type in the value associated with success EXACTLY the way...
Most questions answered within 3 hours.
-
A speeding car is traveling along a straight road with a
constant speed of 100 km/hour....
asked 7 minutes ago -
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 12 minutes ago -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 27 minutes ago -
a) Write a verilog module for 1:4 Demultiplexer using verilog
primitives.
b) Design 1-to-4 DEMUX using...
asked 22 minutes ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 35 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 43 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 42 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 45 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 46 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 50 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 1 hour ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 1 hour ago