Can you apply the idea of p-value to the same problem and explain which probability value can be used as a p-value? Why? Suppose that exam grades are approximately normally distributed with a mean of 68 and a standard deviation of 9 points. If a student requires at least 90 to secure an A, what is the chance of getting an A in this exam?

Q: The IQ of children in a special education class are normally distributed with µ=95 and Q=10 What is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Weights

A: Normal probability plot is one of the technique to assess whether the data follows normal…

Q: If X is a random variable with a mean of 20 and a standard deviation of 5, what is the probability…

A: probability that X is greater than 25=0.1587

Q: If Y is a random variable with a mean of 10 and a standard deviation of 2, what is the probability…

A: From the provided information, Mean (µ) = 10 Standard deviation (σ) = 2

Q: hat would be the specified probability from a table of Normal probabilities if necessary conditions…

A:

Q: Research has shown that the daily revenue (in thousands) of small businesses is a random variable X…

A: Solution: Let X be the daily revenue (in thousands) of small business. From the given information, X…

Q: You run a factory that produces widgets (no, you'll never escape the widgets). Widget diameters are…

A: According to the given information in this question We need to find the following probability

Q: Example: If 25 percent of all patients with high blood pressure have bad side effects from a certain…

A: The probability that a patient with hypertension may have negative side effects from a particular…

Q: What is the probability that a z-score will be 0.92 or less?

A: The objective of this question is to find the probability that a z-score will be 0.92 or less. In…

Q: Suppose i have an unfair coin and it lands on heads 75% of the time.  If I flip this coin four times…

A: Obtain the probability of getting only 1 head.   The probability of getting only 1 head is obtained…

Q: The standard deviation of monthly rents paid by students in a particular city is assumed to be $ 60.…

A: Given, σ = 60 n = 150 we have to find 1.    P( x- < μ + 8 ) 2.    P ( x- < μ - 6 ) where,  Z =…

Q: The standard deviation of monthly rents paid by students in a particular city is assumed to be $ 60.…

A: Given information: Population standard deviation σ=$60

Q: If the value of the calculated z-statistic is 1, what is the probability to the right in the tail?

A: The value of the calculated z-statistic is, The probability to the right in the tail is,

Q: Suppose your customers' incomes are normally distributed with a mean of $37,500 with a standard…

A:

Q: he average price of a home in your community is $200,000 with a standard deviation of $30,240. A…

A:

Q: If Z is a random variable with a mean of 100 and a standard deviation of 20, what is the probability…

A: Introduction: A random variable Z with mean 100 and standard deviation 20 follows a normal…

Q: Paul's Pretzel company sells bags of pretzels that have a mean weight of 4.2 ounces and a standard…

A: Given,mean(μ)=4.2standard deviation(σ)=0.15

Q: How can we calculate the probability-weighted average of the squared deviations?

A:

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

A: Given Data: Let X represent the random variable   Mean=1252 SD=129   X~ Normal (1252, 1292)

Q: The time taken to complete a mathematics test is normally distributed, with an average time (u) of…

A: We have that Population mean =35 Population standard deviation =8.5

Q: Based on historical data, your manager believes that 31% of the company's orders come from…

A: Given information n = 175 orders

Q: Suppose in a certain primary school, the weight of boys are normally distributed with mean 28kg and…

A:

Q: What is the probability of observing a z score greater than 3?

A: From the provided information, The z score is greater than 3. That is P (z > 3)

Q: Scores on the Critical Reading part of the SAT exam in a recent year were roughly Normal with mean…

A: The mean is 496 and the standard deviation is 115.

Q: High blood pressure has been identified as a risk factor for heart attacks and strokes. The National…

A: Given data: p = 0.3 n = 38

Q: The personality variable extraversion is normally distributed in the population and has a mean of 10…

A:

Q: Is the probability for my standardized range really the same as for my original distribution? How…

A: introduction the above question is about probability  We have to explain is the probability for…

Q: What is the standard deviation for a binomial distribution where the probability of success is .2…

A: Given :P = 0.2n = 22

Q: Too much cholesterol in the blood increases the risk of heart disease. The cholesterol levels of…

A: We have to find given probability.

Q: We can assume that the heart rate of healthy spanish men follows a normal distribution with mean 80…

A: We have to find out given probability...  And x value. .

Q: Why is it that the normal distribution is the most useful probability distribution?

A: Solution-: We want to get the reason why is it that the normal distribution is the most useful…

Q: When dealing with a set of numbers such as these attached, do you always group together for a raw…

A: Use the given data to form the excel table:   x x-μ x-μ2   2 -1.1 1.21   5…

Q: Based on the problem at Batangas City Hospital; what is the probability that a patient stays in the…

A: Solution:- from given information

Q: e time taken to complete an exam folows a normal probability distribution with a mean of 60 minutes…

A:

Q: A racing car consumes a mean of 103 gallons of gas per race with a variance of 36. If 38 racing…

A: The probability of the sample mean would be greater than 101.5 gallons is 0.9382 and it is obtained…

Q: What is probability and how is it related to the normal distribution?

A: Probability is a branch of mathematics that deals with the study of random events and their…

Q: If X is a random variable with a mean of 20 and a standard deviation of 5, what is the probability…

A: From the provided information, Mean (µ) = 20 Standard deviation (σ) = 5

Q: Carson's tablet has 2,000 videos. The play time for the videos skewed to the right, with a mean of…

A: Let,  denotes the play time for the Carson's tablet video.The mean and standard deviation of x is…