Expected frequency for hi square test

Assignment Help Basic Statistics
Reference no: EM13108069

An insurance representative wants to determine if the proportions of women and men who buy the different policy types are the same. The actual sales results for 50 women and 50 men are

Policy A Policy B

Women 18 32

Men 12 38

Under the null hypothesis, what is the expected number of men who would buy Policy B?

A) 50

B) 25

C) 30

D) 35

Reference no: EM13108069

Questions Cloud

Recognize the fallacy in biggest problem nuclear industry : Recognize the fallacy:It seems biggest problem nuclear industry has to deal with is not poor safety record, but lack of education of public on nuclear power. Thousands of people die each year from pollution created.
Goodness of fit application of chi-square : Create a scenario for applying the Goodness of Fit application of Chi-square. State the hypotheses, the level of significance, the result and its meaning.
Find the magnitude of the impulse experienced : A meteorite that has a mass equal to 30.8 tonne (1 tonne = 1000 kg) is exhibited in the American Museum of Natural History in New York City. Suppose that the kinetic energy of the meteorite as it hit the ground was 504 MJ.
Question about market research : Consumer preferences for Camay bathing soap were obtained on an 11-point Likert scale. The same consumers were then shown a commercial about Camay.
Expected frequency for hi square test : An insurance representative wants to determine if the proportions of women and men who buy the different policy types are the same. The actual sales results for 50 women and 50 men are
What conclusion should be drawn from these results : A researcher believes that the percentage of people who exercise in California is greater than the national exercise rate. The national rate is 20%. The researcher gathers a random sample of 120 individual who live in California and finds that the..
Description of chi-square : A researcher selected a sample of 50 residents from each of three different cities to determine if they were willing to participate in a medical experiment. At a = .05, test the claim that the proportions who will participate are equal.
How to play the role of an employment officer : researchers gave white college students two resumes in an experiment in which they were asked to play the role of an employment officer. The resumes were desighed to have equal qualification.
Distinguish affective disorders and psychotic disorders : Critically explain and distinguish affective disorders and psychotic disorders, with specific reference to major depressive disorder and schizophrenia

Reviews

Write a Review

Basic Statistics Questions & Answers

  Sampling distribution of mean-library

A library checks out an average of 250 books per day, with a standard deviation of 75 books. If a sample of 36 days of operation is selected and the sample mean is computed,

  Probability related to electricity consumption

Commonwealth Edison wants to identify its heaviest users, which are those that are in the top 6% of electric consumption. How many kilowatt hours in January would qualify for the heavy user classification?

  Optimal order quantity

Processing an order for more disks cost $15. Zip uses 60000 disks annually, and the company has a 25% cost of capital. (a) Find the optimal order quantity.

  Determining probability to get exactly one head

Determine the probability that Mary obtains exactly one Head.

  Probability of a defective component

A company ships computer components in boxes that contain 20 iteams. Assume the probability of a defective component is .4. use the geometric distribution to find the probability that the first defect is found in the third or fourth component test..

  A psychologist theorized where people can hear

Utilizing the .05 level, do the results support the psychologists' theory. A psychologist theorized where people can hear better when they have just eaten a large meal.

  Case study: are the fish safe to eat?

CASE STUDY: Are the Fish Safe to Eat?  Assessing which Factors affect Mercury Levels in Fish in Maine Lakes.

  Computation of probability based on binomial distribution

A fair die is rolled nine times. What is the probability that an odd number (1,3 or 5) will occur less than 3 times?

  Confidence interval estimating the population mean

a. Is there evidence the mean amount is different from 1.0 gallon (alpha= 0.01)? b. Compute the p-value and interpret its meaning. c. construct a 99% confidence interval estimate of the population mean amount of paint.

  Confidence interval to estimate average age of all golfers

The owner of a local golf course wanted to determine the average age of the golfers that played on the course. In a random sample of 30 golfers that visited his course, the sample mean was 48.34 and the standard deviation was 9.327. Calculate a 90..

  Hypergeometric-binomial probability distribution

You are the manager of a softball league in the locality in which there are 5 local teams with 10 people each. The league has been arranged for parity so that each local team has 5 good players and 5 bad players.

  Problems on hypothesis testing

Assume that a 2005 poll of 1000 American voters found that 76% of Republicans favored ending the tax on dividend income, as did 42% of Democrats and 54% of Independents.

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!

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