1,010 Answered Questions for the topic Statistics Question

Statistics Question

04/02/16

70 vinyl records, nine from 40s, 10 from 50s, nine from 60s, seven from 70s, 14 from 80s, randomly selects collection of 70 probability of each decades
butch has a collection of 70 vinyl records from throughout the 20th century
Follows • 3
Expert Answers •1
Statistics Question Word Problem

04/01/16

(a) Determine the appropriate null and alternative hypotheses to answer the question. (b) Suppose the P-value for this test is 0.02. Explain what this val
You Explain It! ATM Withdrawals According to the Crown ATM Network, the mean ATM withdrawal is $67. PayEase, Inc., manufacturers an ATM that allows one to pay bills (electric, water, parking... more
Follows • 2
Expert Answers •1
Statistics Question

03/30/16

A multiple-choice test has four questions. For a student making random guesses for each answer, the probabilities for the number of correct responses are given
A multiple-choice test has four questions. For a student making random guesses for each answer, the probabilities for the number of correct responses are given in this table. Assume that a student... more
Follows • 2
Expert Answers •1
Statistics Question

03/30/16

A discrete probability distribution that applies to occurrences of some event over a specified interval
A discrete probability distribution that applies to occurrences of some event over a specified interval, where the random variable x is the number of occurrences of the event in an interval, is... more
Follows • 2
Expert Answers •1
Statistics Question

03/29/16

given that the population of quarters has a mean weight of 5.67 g and standard deviation of 1.34 g what is the mean of the sample means
I am looking for a solution I didn't think I could solve this without a sample size what am i missing?
Follows • 2
Expert Answers •1
Statistics Question

03/29/16

frequency distribution student ages
age          A=event the student selected is under 2117            B=event the student selected is over 3018            C=event the student selected is in his or her 20s, and19            D=event... more
Follows • 2
Expert Answers •1
Statistics Question Estimate Solutions Population

03/29/16

Statistics question: When 435 college students were surveyed,120 said they visited Instagram today.
When 435 college students were surveyed,120 said they visited Instagram today. Find a point estimate for p, the population proportion of college students who did not visit Instagram... more
Follows • 2
Expert Answers •1
Statistics Question Standard Deviation Mean Confidence

03/29/16

Statistics question: A random sample of 40 statistics students had an average test grade of 81.5
A random sample of 40 statistics students had an average test grade of 81.5 and a standard deviation of 10.2. Construct the confidence interval for the population mean, μ if c = 0.90.   The... more
Follows • 1
Expert Answers •1
Statistics Question

03/27/16

A health study involves 1000 randomly selected daths with a 143 of them caused by a type of cancer
(based on data from Statistics Canada). Using the sample data, construct a 98% confidence interval for the proportion of all deaths caused by cancer.
Follows • 2
Expert Answers •1
Statistics Question

03/27/16

Suppose that we have only 10 temperatures of people undergoing surgery, as below:
36.4  36.3  36.7  36.7  36.8  36.6  36.6  36.5  35.6  36.8 Calculate the sample mean x and standard deviation s Find the margin of error E and construct the 95% confidence interval for the mean... more
Follows • 2
Expert Answers •1
Statistics Question

03/27/16

The time that a skier takes on a downhill course has a normal distribution with a mean of 12.3 minutes and a standard deviation of 0.45 minutes.
What is the probability that on a random run this skier takes less than 11 minutes?
Follows • 2
Expert Answers •1
Statistics Question Standard Deviation Mean

03/27/16

Statistics Question: The repair cost of a Subaru engine is normally distributed with a mean of $5,850 and standard deviation of $1,125.
The repair cost of a Subaru engine is normally distributed with a mean of $5,850 and standard deviation of $1,125. Random samples of 20 Subaru engines are drawn from this population and the mean... more
Follows • 4
Expert Answers •2
Statistics Question Standard Deviation Mean

03/27/16

Statistics Question: The temperature in Orlando on a given summer day is normally distributed with a mean of 98.6° F
The temperature in Orlando on a given summer day is normally distributed with a mean of 98.6° F and a standard deviation of 0.60° F. If 36 summer days in Orlando are randomly selected, find the... more
Follows • 2
Expert Answers •1
Statistics Question Statistics Standard Deviation Mean

03/27/16

statistics question: The salaries of Pet Detectives are normally distributed with a mean of $32,000
The salaries of Pet Detectives are normally distributed with a mean of $32,000 and a standard deviation of $3000. If 100 Pet Detectives are randomly selected, find the probability that their... more
Follows • 2
Expert Answers •1
Statistics Question

03/26/16

Find the probability that a single value of the standard normal random variable will be between zero and 1.52
Find the probability that a single value of the standard normal random variable will be between zero and 1.52
Follows • 2
Expert Answers •1
Statistics Question

03/25/16

What is the minimum score required for admission?
Suppose ACT Mathematics scores are normally distributed with a mean of 20.8 and a standard deviation of 5.4. A university plans to admit students whose scores are in the top 30%
Follows • 2
Expert Answers •1
Statistics Question Statistics Statistical Method

03/25/16

You want to determine the migration pattern of bears in Yellowstone park
Determine Whether the situation calls for a survey, an observational study or an experiment explain your answer.    you want to determine the migration pattern of bears in Yellowstone... more
Follows • 2
Expert Answers •1
Statistics Question Statistics

03/23/16

Help with this stats question please
Systolic blood pressure (SBP) was measured for 30 people of different ages. The results are shown in the blue cells.Part 1 - Develop a best-fit regression line for this data. Using this line,... more
Follows • 2
Expert Answers •1
Statistics Question

03/22/16

What is the best predicted value for the response variable
What is the best predicted value for the response variable if there is no evidence of significant correlation in a sample?
Follows • 1
Expert Answers •1
Statistics Question Statistics

03/22/16

determine an interval that is likely to contain the percent of all households who have a dog as a pet
In a survey of 500 households 23% say that they have a dog as a pet determine an interval that is likely to contain the percent of all households who have a dog as a pet
Follows • 1
Expert Answers •1
Statistics Question Statistics

03/22/16

Round all decimals answers to 3 decimals places if necessary
The first 100 people to go to a minnesota Vikings football game (out of the 60,000 who attended the game) are given a survey asking them to evaluate the parking situation at the game. Is this a... more
Follows • 3
Expert Answers •2
Statistics Question Statistics Statistics Method

03/22/16

Explain who is using the better method and why?
Mr smith and mr. Jones both plan to do an experiment to determine whether a coin (would land heads 50% of the time) Mr. Smith plans to flip the coin 1,000 times, but Mr. Jones only plans to flip it... more
Follows • 1
Expert Answers •1

03/22/16

can somone please check my work.
The data from placebo 0mg is listed below. 57,27,32,31,34,38,71,33,34,53,36,42,26,52,36,55,36,42,36,54,34,29,33,33     What is the mean number of correct responses of the participants after... more
Follows • 3
Expert Answers •2
Statistics Question

03/22/16

Alex and Juana went on a 116-mile canoe trip with their class. On the first day they traveled 29 miles. What percent of the total distance did they canoe?
I have to solve this problem. Multiple choice. 400%, 4%, 25%, or 0.25%                            
Follows • 2
Expert Answers •1
Statistics Question Statistics

03/21/16

Which of the following survey methods should wholesome company use to make a valid conclusibout the percentage of students at Jefferson high school who like
Wholesome company has been hired to design a healthy menu for lunch at Jefferson high school. They want to conduct a survey to determine what percentage of Jefferson's 750 students like carrots.... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.