User Account

All Pages

What is the computed z-value for testing

Assignment Help Basic Statistics
Reference no: EM1392051

A sample of size 200 from Population 1 has 50 successes. A sample of size 200 from population 2 has 40 successes. What is the computed z-value for testing the null hypothesis that the proportion of successes in Population 1 exceeds the proportion of successes in Population 2 by 0.025?

a.

0.60

b.

1.20

c.

1.28

d.

1.96

Reference no: EM1392051

Questions Cloud

Calculate the total number of covalent bonds : Think about the sequence 3'-T-C-T-C-T-A-C-G-T-5' and calculate the total number of covalent bonds joining the nucleotides in each strand?
Dilute a solution : Assume you have 10ml of a concentrated solution of dye and you want to prepare a 1/3, 1/9, and 1/27 dilution so that you have at least 5 ml of each solution to work with when you are all done.
The ordering cost is six per order and the holding cost : If annual demand is 12,000 units, the ordering cost is $6 per order and the holding cost is $2.50 per unit per year
Normal distribution-raw scores : Assume we have a population of scores with mean (mu) of 200 and standard deviation (sigma) of 10. Assume that the distribution is normal. Provide answers to the following questions:
What is the computed z-value for testing : What is the computed z-value for testing the null hypothesis that the proportion of successes in Population 1 exceeds the proportion of successes in Population
Compute mass of water in the air : The relative humidity in a closed room with a volume of 645.2 m^3 is 87.6% at 300K, and vapor pressure of water at 300K is 0.0313 atm.
Using the fixed-order quantity model : Using the fixed-order quantity model, which of the following is the total ordering cost of inventory given an annual demand of 36,000 units
Calculate the probability of getting heads : A biased coin with probability of head being .6 is tossed 12 times. What is the probability that number of head would more than 4 but less than or equal to 10.
Normal probability and distribution-viewers of american idol : The number of viewers of American Idol has a mean of 29 million with a standard deviation of 5 million. Assume this distribution follows a normal distribution.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Creating a flow diagram for entire process

Create a flow diagram for entire process. Include flow paths for students (solid lines) and prescriptions (dashed lines).

  Legitimate sampling strategy

Select a legitimate sampling strategy and collect at least 30 data points using your created question or topic. Discuss the sampling strategy in sufficient detail so that someone else could repeat your data collection without any difficulties or q..

  Applied business statistics test

The following data represent scores of 50 students in the applied business statistics test. Prepare the frequency distribution table and the frequency histogram for this data set.

  Statistic practitioner working for major league baseball

A statistic practitioner working for Major League Baseball determined the probability that the hitter will be out on ground balls is .75. in a game where there are 20 ground balls, find the probability that all of them were out.

  Standard error of the estimate and interpret

Use drinking as an excuse for outrageous behavior. including public nudity and dancing on tables. Find the standard error of this estimate. and interpret.

  Determining a linear-power and exponential model

Now make a scatter plot of data from 1982 to 1998 (again, use years since 1800). Determine a linear, power, or exponential model that explains the crude oil production during this time period.

  Introduction of margin of error

How many students should be surveyed if a 90% confidence interval is desired and the margin of error is to be only 3%?

  Relationship between level of education and volunteerism

What can you tell me about the direction, strength and significance of this association and What would you expect for somebody without any formal education whatsoever and what can you tell me about the nature of this relationship?

  Significance levels which are independent

At significance levels of .05 and .01 test H 0 : the factors A and B are independent.

  Hotel check-ins for a given period

Given the following data on hotel check-ins for a 6-month period:

  Interpretation of marginal means

In a pilot study, five kids are given several problems of each type to practice (and then tested on three problems), in one of the three Sequences: D-R-T, T-D-R, OR R-T-D.

  Correlation coefficient and regression equation

The ________ is the probability of observing a sample value as extreme as, or more extreme than the value observed, given that the null hypothesis is true.

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