Chi square hypothesis test in excel

Assignment Help Basic Statistics
Reference no: EM13108022

The manager of a Farmer Jack Super Market would like to know if there is a preference for the day of the week on which customers do their shopping. A sample of 420 families revealed the following. At the 0.05 significance level, is there a difference in the proportion of customers that prefer each day of the week?

1. State null and alternate hypothesis.

2. State the decision rule.

3. Compute the value of the statistic.

4. What is the decision. interpret the result.

Day of the week Number of persons

Monday 20

Tuesday 30

Wednesday 20

Thursday 60

Friday 80

Saturday 130

Sunday 80

Reference no: EM13108022

Questions Cloud

Find sensitivity and specificity of eggplant disease test : A dangerous new disease, "Mad Eggplant Disease," has been discovered in the United States. Scientists believe that this disease affects 7% of the eggplant-eating population.
Chi square test for goodness of fit : For three independent samples, each with n = 100, the respective sample proportions are 0.30, 0.35, and 0.25. Use the 0.05 level in testing whether the three population proportions could be the same.
Find the future values : FV of $800 paid each 6 months for 5 years at a nominal rate of 5%, compounded semiannually. Round your answer to the nearest cent.
Why republic supposed to be radical concept of government : Why was the republic supposed to be radical (and even utopian) concept of government? What was supposed to be crucial ingredient essential for people to maintain republic?
Chi square hypothesis test in excel : The manager of a Farmer Jack Super Market would like to know if there is a preference for the day of the week on which customers do their shopping.
What developing solvent should we use for the tlc procedure : What developing solvent should we use for the TLC procedure? 1. acetone 2. 0.5% acetic acid in ethyl acetate 3. hexane Why do we use NaOH solution in the extraction procedure? 1. because NaOH Converts the acid into the carboxylate 2. because flour..
Chi square distribution-hypothesis test : There are three loan officers at Farmer National Bank. All decisions on mortgage loans are made by one of these officers. The president of the bank would like to be sure that the rejection rate is about the same for the three officers.
Calculate repayment of principal : Jan sold her house on December 31 and took a $50,000 mortgage as part of the payment. The 10-year mortgage has a 11% nominal interest rate, but it calls for semiannual payments beginning next June 30.
Calculate the percent composition of the mixture : A student needed to determine the percent composition of a mixture that contained flourene and benzoic acid. The student took 312 mg of the mixture and used the extraction method to separate the components.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determmining long-term change

A sustained long-term change in the level of the variable that is being forecasted per unit of time is: (A trend, A time series, Seasonality or A change due to business cycles)

  Calculating the test statistic of a printing plant

The superintendent of a printing plant has selected a random sample of 100 rolls of paper from a large shipment. The average length of the sample rolls is 416 feet, with a variance of 2704 feet.

  Probability of different colors of marbles

A jar contains marbles of different colors: 4 white, 6 black, 6 red, and 4 blue. On two random drawings, without replacement, find the probability that the first is black and the second is white.

  Performing the hypothesis test

a) Set up the null and alternative hypotheses, and perform the hypothesis test. b) Based on these results, does the diet appear to be effective? Does the diet appear to have practical significance?

  Probability of new program different from freshmen class

Can college conclude that students in new program are significantly different from rest of freshmen class? Use two - tailed test with a = 0.05.

  Explanation for independent t test with equal-uneuqal va

Discuss why the independent t-test is called independent. What does this analysis have to do with variance within and between groups?

  Problem related to thrust

A rocket fires two engines simultaneously. One produces a thrust of 800N directly forward while the other gives a thrust of 508N at an angle 38.2^circ above the forward direction.

  Using p-value approach testing weight

Test whether the mean weight is less than 10 pounds. Use P-value approach.

  Test the hypothesis-producing the same mean

Use an alpha level of .01 and test the hypothesis that the two methods are producing the same mean.

  Basic assumption of multiple regression analysis

The appropriate use of multiple regression depends on being able to make four basic assumptions about the data being used to develop the regression model:

  Transportation problem of powers tire company

Powers Tire Company (Which specializes in tires for vehicles ca. 1965) needs your expertise to help them schedule over the next three months. They can make tires using regular labor, or subcontracting.

  Mean weekly family expenditure on clothes

A statistician wants to estimate the mean weekly family expenditure on clothes. He believes that the standard deviation of the weekly expenditure is $125.

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