Make a conclusion about the hypotheses bases

Assignment Help Basic Statistics
Reference no: EM13237910

In 1997, 39.4% of men had made orders by phone in the last 12 months a market research analyst feels that this percentage has declined because of internet purchases. she obtains a random sample of 500 men and determines that 191 of them have made orders by phone in the last 12 months. using alpha=0.05 level of significance 
1 compute the test statistic 
2 make a conclusion about the hypotheses bases on your result( not why, should be it means)  Required minimum-1 page

Reference no: EM13237910

Questions Cloud

Explain emission line in the hydrogen spectrum appears : An emission line in the hydrogen spectrum appears in the infrared region at 956 nm. What transition produced this line? Clearly indicate both nf and ni.
Calculate how much revenue will each acre generate : A purely competitive wheat farmer can sell any wheat he grows for $30 per bushel. His five acres of land show diminishing returns, because some are better of wheat, the second acre 900, the third 800, the fourth 700, the fifth 600
Explain a solution of benzaldehyde in methanol : What new compound will be formed when gaseous HCL is added to a solution of benzaldehyde in methanol
Calculate the amount of electric charge stored on each plate : Two parallel plates, each of area 8.17 cm2, are separated by 6.20 mm, Calculate the amount of the electric charge stored on each plate
Make a conclusion about the hypotheses bases : Make a conclusion about the hypotheses bases on your result( not why, should be it means)  Required minimum-1 page
Compute the new marginal cost and average cost : Edward the entrepreneur takes 2 hours to cut a lawn, and he cuts 1,000 lawns per year. He uses solar-powered equipment (truck and mover) that will last forever -- and could be sold at any time for $20,000.
Compute the amount of energy that would be required : Calculate the amount of energy that would be required to promote an electron from n=1 to n=100 in Li^2+
A manufacturer of industrial seals has production : How much production capacity should the manufacturer reserve for the last day?
Which commodity will scotland trade to england : enliand and Scotland both produce scones and sweaters.Suppose that an English worker can produce 50 scones per hour or 1 sweater per hour. suppose that a Scottish worker can produce 40 scones per hour or 2 sweaters per hour.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Statistical analysis of long-distance calls

A statistical analysis of 1,000 long-distance calls made from the headquarters of the Bricks and Clicks Computer Corporation indicates that the length of these calls is normally distributed with μ = 240 seconds and σ = 40 seconds.

  Performing a two-way anova with replication

When performing a 2-way ANOVA with replication you must first: A) Perform an interaction hypothesis test B) Take out the error because you ran replicates and error makes no sense with replicates

  Find standard error for the sample mean salary

Standard deviation of $1.2 million in 2009. Suppose a sample of 100 major league players was taken. What was the standard error for the sample mean salary?

  Confidence interval to estimate the true average difference

The 90% confidence interval to estimate the true average difference in nationwide sales quantity before the ad campaign and after is (0.39, 16.64). Which of the following is the appropriate conclusion? The differences were calculated as (after ad ..

  At least how many days should pregnancies last

Assume that a normal model with a mean 263 days and standard deviation can describe the duration of human pregnancies 12 days. At least how many days should the longest 30% of all pregnancies last?

  Information regarding significance level

Nitrogen and Seagrass. The seagrass Thalassia testudinum is an integral part of the Texas coastal ecosystem. Essential to the growth of T. testudinum is ammonium.

  Final exams are normal distribution

In a large section of statistics class, the points for the final exams are normally distributed with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule.

  Population of scores making normal distribution

A population of scores forms a normal distribution with a mean of μ = 40 and a standard deviation of σ =12.

  Determine two-sided confidence intervals of mean speed

Suppose observations on 50 vehicles yielded a sample mean of 65 mph. Assume that the standard deviation of vehicle speed is known to be 6 mph. Determine the two-sided 99% confidence intervals of the mean speed.

  One tail-two tail rejection regions

For each of the following statements, formulate appropriate null and alternative hypothese, indicate whether the appropriate test will be one-tail or two-tail, then sketch a diagram that shows the approximate location of the rejection region(s) fo..

  How many backpacks contain two three writing instruments

18 contained both a blue pen and a pencil, and 10 contained all three items. How many backpacks contained exactly two of the three writing instruments?

  Normal distribution or a t-distribution

For the following situation, assume the random variable is normally distributed and use a normal distribution or a t-distribution to construct a 90% confidence interval for the population mean. If convenient, use technology to construct the confid..

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