Test against a two sided alternative the null hypothesis

Assignment Help Basic Statistics
Reference no: EM13616674

In a random sample of 70 prospectuses in which sales forecasts were disclosed, the mean debt to equity ratio prior to the offering was 3.97 and the sample standard deviation was 6.14. For an independent random sample of 51 prospectuses in which sales earnings forecasts were not disclosed, the mean debt to equity ratio was 4.29. Test against a two sided alternative, the null hypothesis that the population mean to debt ratios are the same disclosers and non disclosers of earnings forecasts.

For full points and my understanding, please show all steps

Reference no: EM13616674

Questions Cloud

What is the weighted average y of the logs of the estimated : the tables below summarize the surgery survival rate for two hospitals grouped according to patient condition prior to
A 80 meter radius wheel comes off truck that is going 15 ms : a .80 meter radius wheel comes off truck that is going 15 ms. it rolls down the road slowing to a stop after rolling
Find the value of t for the difference between two means : find the value of t for the difference between two means based on an assumption of normality and this information about
The campbell company is evaluating the proposed acquisition : the campbell company is evaluating the proposed acquisition of a new milling machine. the machines base price is 108000
Test against a two sided alternative the null hypothesis : in a random sample of 70 prospectuses in which sales forecasts were disclosed the mean debt to equity ratio prior to
Find angular acceleration and time needed for a spinning : find angular acceleration and time needed for a spinning ball that has initial angular velocity of 5.5 rads to
Imagine you are a representative of management in the : imagine you are a representative of management in the company you have selected for your week six assignment and you
The speed of a transverse wave on a string is 420 ms and : the speed of a transverse wave on a string is 420 ms and the wavelength is 0.12 m. the amplitude of the wave is 2 mm.
Suppose cattle in a large herd have a mean weight of 1337 : suppose cattle in a large herd have a mean weight of 1337 lbs and a standard deviation of 64. what is the probability

Reviews

Write a Review

Basic Statistics Questions & Answers

  Determine the probability for legal satisfaction scores

Inmates who are in the state facility and 9 who have legal satisfaction scores of 5 or more. How do determine the probability for this because I have come up weird numbers.

  Find karl pearsons correlation coefficient

Find Karl Pearson's correlation coefficient between the sales and expenses from the data given below: Sales (Rs. Lakhs) 50 50 55 60 65 65 65 60 60 50 Expenses (Rs. Lakhs) 11 13 14 16 16 15 15 14 13 13?"

  Managerial decision making-cvp analysis

A distributor of pre-washed shredded lettuce is opening a new plant and considering whether to use mechanized process or manual process to prepare the product.

  Completing the probability distribution

A dish contains 20 gumballs - 9 blue, 6 red and 5 white. We randomly select two gumballs from the dish without replacement. a) Let X be the number of blue gumballs selected. Complete the probability distribution of X by filling in the appropriate p..

  Two parts are assembled the distributions of x1 and x2 are

two parts are assembled. the distributions of x1 and x2 are normal with micro1 20 s1 0.3 and micro2 19.6 s2 0.4.

  Shortest counting time required for the percentage error

A Geiger-Muller tube and a scaler record approximately 50 counts per second due to a radioactive source. What is the shortest counting time required so that the percentage error of the counts will not exceed 1%?

  Probability that at least one dice showing six

Founder of modern probability and statistics theory Cardano asserted that if one throws a die three times the chance that a given number will show at least once is 50 percent. This is now recognized as the wrong answer. Calculate, what is a probab..

  Single population mean test

Using the .10 level of significance, can we conclude that the assembly time using the new method is faster?

  Give a brief explanation of the meaning of the coefficient

Compute the sample correlation coefficient r. Compute the coefficient of determination. Give a brief explanation of the meaning of the coefficient of determination in the context of this problem.

  An old study of 1000 people in phoenix found that 27 were

question 1 the gallop poll folks found that 27 of adults surveyed national survey said that they had been in a

  Probability-defective calculators

A sample of 4 different calculators is randomly selected from a group containing 42 that are defective and 27 that have no defects. what is the probability that all four of the calculators selected are defective?

  Find profit earned-loss incurred on a high performance tire

Calculate the profit earned/loss incurred on; a high performance tire that exceeds 40,000 miles, a high performance tire that does not exceed 40,000 miles.

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