The variance of a sample of 81 observations equals 64 the

Assignment Help Basic Statistics
Reference no: EM13577744

The variance of a sample of 81 observations equals 64. The standard deviation of the sample equals

Choose one answer.

a. 4096

b. 6561

c. 8

d. 9

Reference no: EM13577744

Questions Cloud

The president is uncertain whether a 12 percent or a 16 : national cruise line inc. is considering the acquisition of a new ship that will cost 200000000. in this regard the
Constructing a histogram requires dividing the range of the : constructing a histogram requires dividing the range of the data into class intervals or bins the recomended number of
For many years diehl company has produced a small : for many years diehl company has produced a small electrical part that it uses in the production of its standard line
Iaukea company makes two products from a common input joint : iaukea company makes two products from a common input. joint processing costs up to the split-off point total 48600 a
The variance of a sample of 81 observations equals 64 the : the variance of a sample of 81 observations equals 64. the standard deviation of the sample equalschoose one answer.a.
A quality inspector randomly selected 100 mangoes from the : there are 4000 mangoes in a shipment. it is found that it has a mean weight of 15 ounces with a standard deviation of
Scissorwire inc sells shares of its stock to the public : scissorwire inc. sells shares of its stock to the public with each share valued at 16. after a year the company incurs
Describing data measures of central tendency using the : question describing data measures of central tendencynbspnbspnbspnbspnbspnbspnbspnbsp number of days from order date to
Assume that a random sample is used to estimate a : assume that a random sample is used to estimate a population proportion p. find the margin of error e that corresponds

Reviews

Write a Review

Basic Statistics Questions & Answers

  Specializes in developing weed-harvesting equipment

1. Allen Machines specializes in developing weed-harvesting equipment that is used to clear small lakes of weeds. Allen Machines is contemplating the construction of a machine that would harvest weeds on narrow rivers and waterways. The activ..

  Appropriate decision using mean and standard deviation

The last sample showed a mean and standard deviation of 3.55 and 0.08 inches, respectively. Using α = 0.05, the appropriate decision is?

  Is there evidence-dual degree students getting low grades

The population variances are 4.6 and 5.0 respectively. Using a level of significance of .05, is there evidence that the dual degree students are receiving lower grades?

  Recording the count of spots on the up face

Roll a die and record the count of spots on the up face: P(1) = 0, P(2) = 1/6, P(3) = 1/3, P(4) = 1/3, P(5) = 1/6, P(6) = 0.

  Estimate for the mean amount per customer

Give a point estimate for the mean amount per customer spent at the supermarket and give a 99% confidence interval estimate for the mean amount per customer spent at the supermarket.

  What is the probability that the wedding costs more than

the mean cost of a wedding is 28732. suppose the cost for a wedding is normally distributed with a standard deviation

  Distribution of the parts which is normally distributed

The design tolerance thickness for an automotive part is 55 mm to 65 mm. If the process mean thickness is 61 with a standard deviation of 2.3 mm, then what percentage of the sheets will be acceptable? (i.e. What percentage will fall within the des..

  Calculate numerical summaries-measures of central tendency

Calculate numerical summaries including measures of central tendency such as mean and median and measures of variation including range and standard deviation.

  Assumptions of a particular model

Discuss the assumptions of this model. Specifically, how does each variable affect demand? How do the variables influence each other? What limitations might this model have? How can it be improved?

  Average precipitation and normal distribution

Average Precipitation For the first 7 months of the year, the average precipitation in Toledo, Ohio, is 19.32 inches. If the average precipitation is normally distributed with a standard deviation of 2.44 inches, find these probabilities.

  Conclude that less employees are not able to pass drug test

Would it be reasonable to conclude that less than 5 percent of the employees are not able to pass the random drug test?

  Normal distribution with a mean of a pack soda

The retail price of 12-pack soda can be characterized as having a normal distribution with a mean of 3.00 dollars and a standard deviation of 0.25. Below what price do you find 30 percent of all 12-packs?

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