Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

Statistics


Home >> Statistics and Probability

The Sony Corporation produces a Walkman that requires two AA batteries. The mean life of these batteries in this product is 35.0 hours. The distribution of the battery lives closely follows the normal probability distribution with a standard deviation of 5.5 hours. As a part of their testing program Sony tests samples of 25 batteries.

a. What can you say about the shape of the distribution of sample mean?
b. What is the standard error of the distribution of the sample mean?
c. What proportion of the samples will have a mean useful life of more than 36 hours?
d. What proportion of the sample will have a mean useful life greater than 34.5 hours?
e. What proportion of the sample will have a mean useful life between 34.5 and 36.0 hours?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M9445968

Have any Question?


Related Questions in Statistics and Probability

Question you are throwing a party and fill a bowl with 63

Question: You are throwing a party and fill a bowl with 63 ounces of punch. Suppose the expected size of each cup of punch is 2 ounces and the standard deviation of the size of a cup of punch is A ounce and each cup is p ...

Research scenario a community psychologist is interested in

Research Scenario: A community psychologist is interested in whether people's self-reported degree of religious belief predicts their self-reported feelings of well-being. She administers two questionnaires to 17 individ ...

If a coin is tossed 5times and then a standard six-sided

If a coin is tossed 5times, and then a standard six-sided die is rolled 2 times, and finally a group of two cards are drawn from a standard deck of 52 cards without replacement, how many different outcomes are possible?

Lets see how much you have been paying attention for your

Let's see how much you have been paying attention. For your first Pause-Problem in this chapter, please tell me three things that differentiate parametric from non-parametric tests (Hint: There are actually four, so see ...

According to an airline flights on a certain route are on

According to an? airline, flights on a certain route are on time 80% of the time. Suppose 13 flights are randomly selected and the number of? flights is recorded. ?a) Explain why this is a binomial experiment. ?b) Determ ...

A researcher records the following body mass index bmi

A researcher records the following body mass index (BMI) scores for a group of participants: 29.1 1.3 (M SD). Participants who score between 26 and 30 on this scale are categorized as overweight. What proportion of parti ...

Suppose that systolic blood pressure for 35- to

Suppose that systolic blood pressure for 35- to 44-year-olds is normally distributed with mean 125 in mm Hg and standard deviation 10 in mm Hg. What proportion of individuals will have a blood pressure reading between 12 ...

A lumber grading system is known to be defective 20 of the

A lumber grading system is known to be defective 20% of the time. Normally, 20% of the lumber that passes through is rejected, but when it is defective, 50% of the pieces are rejected. In either case, pieces that are acc ...

What is the sample size for studies with moe of -35 and -28

What is the sample size for studies with MOE of +/-3.5% and +/-2.8%?, with a confidence level of 95%, sample statistics of .50? Please show work.

Explain how the company newmans own brand fulfills the

Explain how the company Newman's Own brand fulfills the definition of a business for profit and a non-profit business at the same time. Consider in the response the functions of business, entrepreneurship and production ...

  • 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

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As

Follow Us

© Copyright 2013-14 mywordsolution.com All rights reserved