Boys growth charts indicate that height of eight-year-old boys is approximately Normal with mean 48 inches and

Fantastic news! We've Found the answer you've been seeking!

Question:

Boys’ growth charts indicate that height of eight-year-old boys is approximately Normal with mean 48 inches and standard deviation 2.1 inches.

a. What is the probability that one randomly selected eight-year-old boy is at most 49 inches?

b. What is the probability that an SRS of size 64 has a sample mean that is at most 49 inches?

Related Book For answer-question

Business Statistics a decision making approach

ISBN: 978-0133021844

9th edition

Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry

See More Books

Posted Date: Feb 08, 2022 07:37 AM

See More Questions

a what is the probability that the person responded Increase oil, gas and coal b what is the probability that the person responded Equally important or had no opinion Suppose we select three people...
On a test whose distribution is approximately normal with a mean of 50 and a standard deviation of 10, the results for three students were reported as follows: Student Opie has a T-score of 60....
The probability that a randomly selected newborn is a boy is actually more than 1/2.The number of newborn boys for every 100 newborn girls is called the sex ratio at birth. The birth order of a first...
Three taxpayers each wish to make a BADR claim in relation to a qualifying disposal made during 2020-21. Their previous claims are as follows: (a) Gemma made a BADR claim in relation to a gain of...
A group of overweight people are asked to participate in a weight loss program. Participants are allowed to choose whether they want to go on a vegetarian diet or follow a traditional low-calorie...
Suppose that we have p= 4 quality characteristics, and in correlation form all four variables have variance unity and all pairwise correlation coefficients are 0.7. The in-control value of the...
With reference to Exercise 3.34, suppose that the questionnaire filled in by one of the 150 persons is to be double-checked. If it is chosen in such a way that each questionnaire has a probability of...
Hasagama Middle School wants to raise money for a new sound system for its auditorium. The primary fund-raising event is a dance at which the famous disc jockey D.J. Rivet will play classic and...
1. If you put $1,000 in a savings account at the end of each year for 11 years, how much money will be in the account at the end of the 11th year? Assume that the account earns 11% per annum and...
Suppose that Sasha and Jayla both collect data to investigate whether people tend to call heads more often than tails when they are asked to call the result of a coin flip. If Sasha has a smaller...
You decide to save $500/month for the next 20 years. You are able to find an investment that instead earns 7.5% annually (interest compound monthly). How much would you have accumulated at the end of...
Why should the performance of variance analyses be based on flexible budgets rather than static budgets?
Budgets provide a framework for evaluating performance and improving learning. Do you agree? Explain.
Only quantitative outcomes are relevant in capital budgeting analyses. Do you agree? Explain.
Give three examples of opportunity costs that typically are not recorded in accounting systems, although they are relevant when using the EOQ model in the presence of demand uncertainty.
Define strategy.
what would you like to recommend to Australian government in regards to their fiscal stimulus policy for supporting covid affected society?
Figure displays a 12.0 V battery 3 four uncharged capacitors of capacitances C1 = 4.00F, C2 = 6.00F, and C3 = 3.00F. The switch is thrown to the left side until capacitor 1 is fully charged. Then the...
Given the following sample information randomly selected from two populations a. Determine if the sample sizes are large enough so that the sampling distribution for the difference between the sample...
Given the following null and alternative hypotheses HO: p 0.60 HA: p < 0.60 test the hypothesis using a = 0.01 assuming that a sample of n = 200 yielded x = 105 items with the desired attribute.
A random sample of two variables, x and y, produced the following observations: x y 19.. 7 13.. 9 17.. 8 9..11 12.. 9 25.. 6 20.. 7 17.. 8 a. Develop a scatter plot for the two variables and describe...
Coherent light of wavelength $\lambda$ is normally incident on two slits separated by a distance $d$. What is the greatest possible fringe order?
Coherent green light of wavelength $530 \mathrm{~nm}$ passes through two very narrow slits separated by $1.00 \mu \mathrm{m}$. What is $(a)$ the angular location of the first-order bright...
Figure 34.21 shows diffracted $\mathrm{x}$-ray intensity as a function of the Bragg angle $\alpha$, obtained using $\mathrm{x}$ rays having a wavelength of $0.11 \mathrm{~nm}$. (a) Without...

Boys growth charts indicate that height of eight-year-old boys is approximately Normal with mean 48 inches and

Question:

Expert Answer:

U 48021 a p x s49 49 48 ... View the full answer

Business Statistics a decision making approach

Students also viewed these accounting questions