Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Confidence interval for one population mean.

1. The mean of the standard normal distribution is
A. 1
B. 0
C. 100
D. all of these

2. The standard normal distribution is continuous?
A. true
B. false

3. A walker travelling at 4 miles per hour burns and average of 300 calories per hour. The standard deviation is 8 calories. Find the following for a walker that travels 4 miles in one hour.

Find the possibility that a worker burns more that 280 calories is the probability
A. 0.4938
B. 0.0062
C. 0.9938
D. 0.5062

4. Refer to the walk that burns and average of 300 calories and the standard deviation is 8 calories.
What is the probability that the walker will burn less than 293 calories?
A. 0.1894
B. 0.2106
C. 0.8106
D. 0.5000

5. What is the prospect that walker will burn 285 to 320 calories?
A. 0.9637
B. 0.4699
C. 0.4938
D. 0.0363

6. A point estimate is more likely to occur than an interval estimate
A. true
B. false

7. A study of 40 bowlers showed that there average score was 186 the standard deviation of the population is 6. Uncover the 95% confidence interval of the mean score for all bowlers.
A. (183.56, 188.44)
B. (184.0, 188.0)
C. (184.14 187.86)
D. (184.44, 187.86)

8. Data that can be classified according to colour are measured on what scale?
A. nominal
B. ordinal
C. ratio
D. interval

9. The height of president bush is an instance of a variable?
A. True
B. False

10. A university dean wants to estimate the average number of hours his part-time instructors teach per week. The standard deviation from a previous study is 2.6 hours how large of a sample is necessary if he wants to be 99% confident of finding whether the true mean differs from the sample mean by 1 hour.
A. 7
B. 19
C. 45
D. 85

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M919799

Have any Question? 


Related Questions in Statistics and Probability

The annual commissions earned by sales representatives of

The annual commissions earned by sales representatives of Machine Products, Inc. a manufacturer of light machinery, follow the normal probability distribution.  The mean yearly amount earned is $40,000 and the standard d ...

Suppose that the number of men equals the number of women

Suppose that the number of men equals the number of women, and that Vera is last on the preference list of every man. Prove that under every stable matching, Vera is matched to the same man. Who is the unlucky guy?

A researcher evaluates a gun training program in a large

A researcher evaluates a gun training program in a large American city found that rapes dropped by 90% in the year following the training. Researchers looking at the same data but expanding the time frame to include 5 ye ...

A researcher was interested in the effects of weather on

A researcher was interested in the effects of weather on cognitive performance. He tested participants on either sunny or cloudy days, and obtained the following scores on a 10-item test of cognitive performance. Using t ...

Wat were the key political features of the roman republic

What were the key political features of the Roman Republic? How and why did this system of government collapse? Does our republic share any of the weaknesses of the Roman Republic?

1 what are the four basic goals of behavioral research2

1. What are the four basic goals of behavioral research? 2. Distinguish between basic and applied research. In what ways are basic and applied research interdependent?

If the slope of a straight line is 23 and correlation

If the slope of a straight line is 2.3 and correlation coefficient is 0.777, calculate coefficient of determination.

A machine used to fill gallon-sized paint cans is regulated

A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 138 ounces and a standard deviation of 0.40 ounce. You randomly select 45 cans and carefully measure the con ...

Grear tire company has produced a new tire with an

Grear Tire Company has produced a new tire with an estimated mean lifetime mileage of 36,500 miles. Management also believes that the standard deviation is 5000 miles and that tire mileage is normally distributed. To pro ...

You are playing blackjack in a casino the casino is using a

You are playing blackjack in a casino. The casino is using a single, 52 card deck. Shuffling the deck takes time. So rather than shuffling the deck after each hand, the casino deals three hands before shuffling. The used ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen