User Account

All Pages

In testing a population variance or constructing a

Assignment Help Basic Statistics
Reference no: EM13580658

Q1. A chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. Usingthe chi-square table, the most accurate statement that can be made about the p-value for this test is that:

A. 0.025 > p-value > 0.01.
B. 0.05 > p-value > 0.025.
C. p-value
D. 0.10 > p-value > 0.05.

Q2. In testing a population variance or constructing a confidence interval for the population variance, anessential assumption is that:

A. sample size exceeds 30.
B. expected frequencies equal or exceed 5.
C. the population is normally distributed.
D. the population is uniformly distributed.

Q3. A balanced experiment requires that:

A. the number of treatments equals the number of samples.
B. an equal number of persons or test units receives each treatment.
C. at least two treatment groups be used.
D. at least one sample equal size is 30.

Q4. The object on which the response and factors are observed is called:

A. treatments.
B. factor level.
C. factors.
D. experimental unit.

Q5. An indication of no linear relationship between two variables would be a coefficient of:

A. determination equal to -1.
B. determination equal to 1.
C. correlation equal to -1.
D. correlation of 0.

Q6. In using the ANOVA models, the assumptions made about the data are:

A. A, B, and C are all assumptions made about the data.
B. the population variances are equal.
C. the population distributions are normal.
D. the samples are independent.

Q7. The F-statistic in a one-way ANOVA represents the variation:

A. between the treatments divided by the variation within the treatments.
B. within the treatments divided by the variation between the treatments.
C. within the treatments minus the variation between the treatments.
D. between the treatments plus the variation within the treatments.

Q8. In a hypothesis test for the population variance, the alternate hypothesis is the population variance doesnot equal 17.0. The significance level to be used is 0.05 and the sample size to be taken is 25. The tablevalue(s) to use from the chi-square distribution is/are:

A. 12.401 and 39.364.
B. 40.647.
C. 13.120 and 40.647.
D. 39.364.

Q9. A regression analysis between sales (in $1000) and advertising (in $) resulted in the following leastsquares line: yˆ = 80,000 + 5x. This implies that an increase of _______ in advertising is expected to resultin an increase of _______ in sales.

A. $1, $5,000
B. $1, $5
C. $1, $80,005
D. $5, $5,000

10. What is the slope of the line that passes through the points (-5, -8) and (3,8)?

A. 2
B. ½
C. -½
D. -2

Reference no: EM13580658

Questions Cloud

Wat is the probability that there will be 0 defective : trowbridge manufacturing produces cases for personal computers and other electronic equipment. the quality control
Create a powerpoint presentation of 10-15 slides in which : create a powerpoint presentation of 10-15 slides in which you compare the pros and cons of continuing nursing education
If the university decided to print 2600 programs for each : every home football game for the past eight years at eastern state university has been sold out. the revenues from
Find the expression for velocity profile the mass flow and : find the expression for velocity profile the mass flow and heat transfer rates of air due to natural convection in a
In testing a population variance or constructing a : q1. a chi-square test for independence with 8 degrees of freedom results in a test statistic of 18.21. usingthe
How does it compare to other similar establishments : answer these 4 questions in detail approximately 300 words. make the senteces easier. dont make them complicated. just
Compute the amount of net income reported by light for 20x2 : tall corporation purchased 75 percent of light corporations voting common stock on january 1 20x2 at an amount equal to
What equation will generate the number of tiles for a : growing rectangles suppose we are growing rectangles - specifically rectangles in which one side is 1 unit longer than
Institutional constraints laws regulations and policies : institutional constraints laws regulations and policies help us develop and implement effective watershed management

Reviews

Write a Review

Basic Statistics Questions & Answers

  What is average inventory and annual holding cost

Furthermore, it takes about two weeks for an order to arrive from the supplier. What is the average inventory? What is the annual holding cost?

  Employee turnover as the variables

How much of the variation in the dependent variable would be explained by the independent variable in this situation? Use job satisfaction and employee turnover as the variables for this problem.

  Explain what is probability of between success

Probabilities can be approximated by the normal probability distribution? Explain What is the probability of between 100 and 110 successes? What is the probability of 130 or more succeses?

  Develop and complete the total cost for each plan

Expand and aggregate plan using each of the following guidelines and complete the total cost for each plan. Which plan has the lowest total cost.

  Sample mean-hypothesis test

The number of standard errors that the sample estimate (p 1  - p 2 ) of (p1 - p2) falls from its null hypothesis value of zero is called

  Probability of day worker

A group of day to day workers can work either 0 hours, eight hours or 12 hours at a pay rate of $9.75 per hour. (The 12 hour day pays regular time for the first eight hours and double time for the remaining four hours.

  What does the value of ten in the equation indicate

Assume the least squares equation is Y' = 10 + 20X. What does the value of 10 in the equation indicate? Y intercept. For each unit increased in Y, X increases by 10.

  Find rejection and non rejection regions based on hypotheses

Assuming that they wish to test the claim at alpha = 0.025, determine the rejection and non rejection regions based on your hypotheses in a). State the critical value.

  Let be the sample proportion of likely voters favoring

Time/CNN voter polls monitored public opinion for the presidential candidates during the 2000 presidential election campaign. One Time/CNN poll conducted by Yankelovich Partners, Inc., used a sample of 589 likely voters (Time, June 26, 2000). Assume ..

  A coin is tossed 4 times let a be the event that the first

a coin is tossed 4 times. let a be the event that the first toss is heads. let b be the event that the third toss is

  Random sample for grill owners

In a simple random sample of 1000 households, 150 households happen to own a barbecue grill. Based on the characteristics of the population, the expected number of grill owners in the sample was 180.

  Will phenomenon introduce bias into estimates

Almost 20% of the stratum was sampled compared to the second stratum where only 2% of the stratum was sampled. Will this phenomenon introduce bias into the above estimates?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd