The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). The mean maximum oxygen uptake for elite athletes has been found to be 65 with a standard deviation of 8.7. Assume that the distribution is approximately normal. a)  What is the probability that an elite athlete has a maximum oxygen uptake of at least 50 ml/kg? b) What is the probability that an elite athlete has a maximum oxygen uptake of 75 ml/kg or lower?

Q: 10.00 lbs and a sample stdev of 5 lbs. What is the 90% Conf. Int. for the mean? Group of answer…

A: It is given that  Sample mean = 10 Sample standard deviation = 5 Sample size = 8

Q: Shade the corresponding region under the standard normal density curve below.

A: Given Information: Given that, X is normal random variable with mean=1 and standard deviation=3.…

Q: Which proportion of a normal distribution is located between z = 0 and z = +1.50?

A: Solution: Here, it is needed to find the proportion of a normal distribution is located between z=0…

Q: In standard normal distribution, what is the area to the left of z = -2.22 ? A 0.9830 B 0.0132…

A: In standard normal distribution,what is the area to the

Q: A rv X has a normal distribution with o=10. If the prob is 0.8212 that it will take on a value…

A:

Q: For a standard normal distribution, find: a) P(-0.84 c) = 0.9473 Find c.

A: Given For a standard normal distribution, find:

Q: Find the value z of a standard Normal variable Z that satisfies each of the following conditions. In…

A: Given (a) P(Z<z)=38% (b)  P(Z>z)=70%

Q: Use a table, calculator, or computer to find the specified area under a standard normal curve. Round…

A: The random variable is Z is a standard normal variable. Z~N0, 1

Q: A. Find the area under the standard normal distribution curve. 1. Between Z 0 and 2= 1.49 2. To the…

A:

Q: Using standard normal distribution, Find the area right to z = -1.82?

A: X~N( 0 , 1 )   μ=0 , ?=1 (for standard normal distribution)   Z-score =( x - μ )/?

Q: he amount of trash generated by US households (in lbs per day) is Normally distributed. You a random…

A: given datanormal distribution n=8DF= n-1=8-1=7x¯=10.00 LBSs=5   LBSCI=0.90α=1-0.90=0.10

Q: In the standard normal distribution, find the total area between z= -0.53 and z= 1.23

A: Obtain the probability that a standard normal distribution for the area that lies between –0.53 and…

Q: The value of the standard deviation o of a normal distribution is always O a. Equal to zero b.…

A: Basics: We know that , standard normal distribution  with mean of 0 and standard deviation of 1. i.e…

Q: 1.) For the standard normal distribution, find The area within one standard deviation(|z|<1). Your…

A: Given : Standard normal variable Z Z~N(0,1)Mean=0 Standard deviation (sd)=1

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Given Those test scores are normally distributed with a mean of 0 and a standard deviation of 1.

Q: find the indicated area under the normal curve and their probability to the left 0.65 to the right…

A: Z values state that the amount of standard deviation is above or below the mean value of what is…

Q: Give the formula for calculating the quartiles, of a continuous distribution.

A:

Q: In a standard normal distribution, the area to the left of z = 1.02 is?

A: Solution: The area under the curve to the left Z = 1.02 is: P(Z&lt;1.02) = 0.8461

Q: Let X has a normal distribution with a mean of 120 and a standard deviation of 20. The z value…

A:

Q: For a standard normal distribution, P(z = 0) is equal to a. 1 b. 0.50 c. 0.33 d. O

A: Given Z = 0

Q: For a standard normal distribution, find c if P(z > c) = 0.7321 c=

A:

Q: Given a standard normal distribution, find the area

A: The value of z can be found by using the standard normal table.

Q: A vertical line drawn through a normal distribution at z = 0.50 will separate the distribution into…

A:

Q: A vertical line drawn through a normal distribution at z = -0.72 separates the distribution into two…

A: Given :  A vertical line drawn through a normal distribution at z = -0.72 separates the distribution…

Q: About % of the area under the curve of the standard normal distribution is between z=−2 and z=2 (or…

A:

Q: Given a standard normal distribution, find the area of the curve between z= -1.97 and z=0.86

A: The standard normal variable z follows normal distribution with mean 0 and standard deviation 1.

Q: Given that Z is a standard normal variable, the value z for which P(Z ≤ z) = 0.2580 is: Select one:…

A:

Q: what is the value of 1.1538 from the z_table?

A: Explanation: Standard normal Z-table gives the area to the left of  the Z. Z = 1.1538, is the area…

Q: Assume that a randomly selected subject is given a bone density test. Those test scores are normally…

A: Obtain the probability that a given score is less than z = –0.55. The probability that a given score…

Q: The area under the standard normal curve between 1 and 2 standard deviations (both sides) in the…

A:

Q: Let Z be the standard normal variable. Find the values of z if z satisfies the following: P(Z < -z)…

A: From the provided information,Let Z be the standard normal variable.P(Z &lt; -z) = 0.8365

Q: Suppose that the life span of a certain automobile tire is normally distributed with u= 25,000 miles…

A:

Q: The proportion of observation from a standard normal distribution that take values less than 1.5 is…

A: P(Z&lt;1.5)=?   By using standard normal table the probability for 1.5 is  0.9332.   P(Z&lt;1.5)=…

Q: Given a normal distribution with mean equal to 30 and standard deviation of 6, find the normal curve…

A: The mean of the data is 30. The standard deviation of the data is 6.

Q: Assume z follows a standard normal distribution: a.P(X=2) b.P(X=2) d.P(2 < X < 4)

A: z follows a standard normal distribution: from z distribution table, a. P(X =2)  = P(0&lt;x&lt;Z) =…

Q: Let Z be the standard normal variable. Find the values of z if z satisfies the following: P(Z > z)…

A: P(Z &gt; z) = 0.3336

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.