Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

1) The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What percentage of bolts will have a diameter greater than 0.32 inches?

2) The annual precipitation amounts in a certain mountain range are normally distributed with a mean of 88 inches, and a standard deviation of 10 inches. What is the likelihood that the mean annual precipitation during 25 randomly picked years will be less than 90.8 inches?

3) A mean score on a standardized test is 50 with a standard deviation of 10. Answer the following

a. What scores fall between -1 and +1 standard deviation?

b. What percent of all scores fall between -1 and +1 standard deviation?

c. What score falls at +2 standard deviations?

d. What percentage of scores falls between +1 and +2 standard deviations?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92768283
  • Price:- $10

Priced at Now at $10, Verified Solution

Have any Question?


Related Questions in Statistics and Probability

Dave and ellen are newly married and living in their first

Dave and Ellen are newly married and living in their first house. The yearly premium on their homeowner's insurance policy is $400 for the coverage they need. Their insurance company offers a discount of 8 percent if the ...

The following are amounts of time minutes spent on hygiene

The following are amounts of time (minutes) spent on hygiene and grooming in the morning by survey respondents (based on data from an SCA survey). 15, 16, 18, 25, 26, 30, 32, 41, 45, 55, 63. Does the number 63 appear unu ...

In order to fund her retirement helen needs her portfolio

In order to fund her retirement, Helen needs her portfolio to have an expected return of 13.8 percent per year over the next 30 years. She has decided to invest in Stocks 1, 2, and 3, with 25 percent in Stock 1, 50 perce ...

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 ...

Question a gamble is said to be fair if each player has the

Question: A gamble is said to be fair if each player has the same expected outcome. Suppose we play a game in which the first of two players receives $50 each time the roll of a balanced die comes up with a 1 or 6. Playe ...

Future value of an annuitywhat is the future value of a 470

Future Value of an Annuity What is the future value of a $470 annuity payment over 7 years if the interest rates are 6 percent?

Q1 what would the best approach to evaluating whether the

Q1. What would the best approach to evaluating whether the extension to the new line be? would an IRR / NPV approach be adequate? Q2. My understanding is that we would take the sales of the extension of the modern line ( ...

A carnival game involves a spinner that is designed so that

A carnival game involves a spinner that is designed so that in 20 percent of spins the player will win a prize. A random sample of 100 spins will be observed and the random variable X = number of times in the sample that ...

Inbspa statistics instructor wants to measure the

I. A statistics instructor wants to measure the effectiveness of his teaching skills in a class of 66 students ( N  = 66). He selects students by waiting at the door to the classroom prior to his lecture and pulling asid ...

In a pre-election poll a candidate for district attorney

In a pre-election poll, a candidate for district attorney receives 379 of 750 votes. Assuming that the people polled represent a random sample of the voting population, test the claim that a majority of voters support th ...

  • 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