Conduct a hypothesis test using the four-step procedure

Assignment Help Basic Statistics
Reference no: EM132147997

In a pre-election poll, a candidate for district attorney receives 379 of 750 votes. Assuming that the people polled represent a random sample of the voting population, test the claim that a majority of voters support the candidate. Use a 0.05 significance level to conduct a hypothesis test using the four-step procedure. Be sure to state your conclusion.

Formulate the null hypotheses.

Find the z-value

Find the p-value

Reference no: EM132147997

Questions Cloud

Confidence interval for the population mean repair cost : In a random sample of 50 ?refrigerators, the mean repair cost was ?$146.00 and the population standard deviation is ?$17.80.
Presentation on project - Develop fingerprint voting system : The main goal of the project is to develop fingerprint voting system in order to given the facility of authenticated as well as secured way of voting
Evaluate how effective you felt the instruction was for ells : Observe a language arts/English lesson and a social studies/humanities/history lesson. Evaluate how effective you felt the instruction was for ELLs.
Confidence interval for the population proportion : In a survey of 3153 adults, 1407 say they have started paying bills online in the last year.
Conduct a hypothesis test using the four-step procedure : Use a 0.05 significance level to conduct a hypothesis test using the four-step procedure. Be sure to state your conclusion.
What height represents the 95th ?percentile : In a survey of women in a certain country? (ages 20-?29), the mean height was 65.3 inches with a standard deviation of 2.71 inches.
Population standard deviation : Assume the population standard deviation for wait time is 51 seconds. Using a 95?% confidence? interval, does this sample support the? retailer's claim?
How did your educational environments in the past : How did your educational environments in the past and today support or detract from this motivation?
Estimate the mean number of calories : Construct confidence intervals to estimate the mean number of calories consumed per day for the population with the confidence levels shown below.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Formulating the hypotheses for a given problem

The average age of the students in the sample was 23 with a standard deviation of 3.5: a) Formulate the hypotheses for this problem.

  Draw the tree for oranges decision problem and determine

the management of orange computers was considering launching a new product called whopper101. the problem was that if a

  When presented with a new data set it makes sense to find

when presented with a new data set it makes sense to find the center of the data in order to check that it behaves as

  Z representing the standard normal variable

Let  z  represent the standard normal variable and suppose a value is randomly selected. Find each of the following probabilities by:

  Construct an appropriate control chart

Construct an appropriate control chart and comment on the process assuming a type I error rate of 0.005. What would the control limits be for a type I error rate of 0.05? What factors would influence your selection of the type I error rate?

  Confidence interval for the proportion of all patients

Generate a 95% confidence interval for the proportion of all patients with total cholesterol

  Behavioral finance with traditional finance

What is the difference between behavioral finance with traditional finance?

  Relation between mortality from cirrhosis

Perform a significance test to assess whether there is an association between mortality from cirrhosis of the liver and duration of employment in the group hired after 1945. Report a p-value.

  Described for interpreting internal definitions

In this exercise we implement the method just described for interpreting internal definitions. We assume that the evaluator supports let (see exercise 4.6)

  Calculate the standard error of the mean

For a series of random samples of 60, are the mean values of these random samples normally distributed? Explain. Calculate the standard error of the mean and explain the meaning of this value

  Characteristics of members of congress

Are the personal characteristics of members of congress an important consideration when it comes to their election?

  Calculate the pooled proportion

According to a study conducted by a major computer company, 62% of men and 69% of women say that weight is a very important factor when purchasing a laptop.

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