When a population (Y) has a Normal probability distribution, the sampling distribution of Y  is a Normal probability distribution for Any sample size Only large sample sizes Only samples of size 30 or greater Only small sample sizes   The body temperatures of adults are normally distributed with a mean of 98.6 ° F and a standard deviation of 0.60° F. Please, Find the 70th percentile of the body temperature. 98.6 98.9 99.2 0.5244

Q: b. Sketch a standard normal curve and shade the area under the curve that les to the left of -1.56…

A: The objective is to sketch the standard normal curve and shade the area to the left of the given…

Q: 1 Student exam results as a percentage are modelled by a Normal distributionwhere X~ N(75, 100).…

A:

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

A:

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

A: We have given that, The test scores are normally distributed with mean of 0 and standard deviation…

Q: escribe the sampling distribution of p. Assume the size of the population is 25,000.   n=1000​,…

A: given data  n = 1000 p = 0.285 standard deviation of sampling distribution (σp) = ?

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

A: Mean(µ) = 0Standard deviations (σ) = 1X ~ N (µ, σ )= N(0, 1)

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

A: Given that:Z is standard normal Distributed with i.e. mean µ =0 and standard deviation σ =1 By using…

Q: A standardized​ exam's scores are normally distributed. In a recent​ year, the mean test score was…

A: The given data is as follows:Population mean, Population standard deviation, The test scores of 4…

Q: ssume that thermometer readings are normally distributed with a mean of 0°C and a standard deviation…

A: given mean μ=0 standard deviation σ=1

Q: The average life of a smartphone is 7 years with a standard deviation of 1 year. Assuming that the…

A: Let X denotes the life of smartphones. Given that X follows approximately N(μ=7,σ2=12). The sample…

Q: Continuous distribution. Draw a bell shaped curve to show the x and z values and the probability…

A: The objective of this question is to find the probability of male students having a height between…

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

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

Q: Heip Listed in the data table are amounts of strontium-90 (in millibecquerels, or mBq, per gram of…

A: Given information: A simple random sample of the amount of strontium-90 present in the baby teeth.…

Q: μ-48 σ =2 μ-3σ μ. μ-σ μ+2σ μ+ 3σ μ

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Q: HELP I NEED IN ONE HOUR. The first box options are "greater than" or "less than or equal to".…

A: Given data: Significance level = 0.01

Q: random selection of volunteers at a research institute have been exposed to a typical cold virus.…

A: Given: Significance level α = 0.05 Treated with multivitamin: n1 = 15 σ1 = 1.8 Treated with placebo:…

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

A: From the provided information, Mean (µ) = 0 Standard deviation (σ) = 1 Let X be a random variable…

Q: X-charts and R-charts) A mean chart is used to maintain the diameter of plastic i process is known…

A: Control Charts: Control charts are used to represent the data in graphically to estimate the…

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

A:

Q: that the heights of male students are normally distributed with a mean of 70.a inches and a…

A: The heights of male students are normally distributed.= 70.1= 2.1Formula in use:Z-score =

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

A: Given that, test score is normally distributed with mean 0 and S.D 1. Z~N(0,1)

Q: Sample size n=16, a normal distribution with a mean of u=75. Standard divination=20.   find the…

A:

Q: The length X of certain items produced in a particular workshop are normally distributed with mean µ…

A: Solution-: Given: P(X<45)=10.56% and  P(X>49)=22.66% We want to find values of μ and σ?

Q: The time to complete an exam is approximately Normal with a mean of 47 minutes and a standard…

A: Mean  Standard deviation

Q: Length of snowboards in a boardshop are normally distributed with a mean of 150.8 cm and a standard…

A: Given,mean(μ)=150.8standard deviation(σ)=0.6

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

A: Given that, Mean = 0 Standard deviation = 1

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

A: Given Data: Test scores are normally distributed with a mean of 0 and standard deviation of 1.   1)…

Q: The distribution of actual weights of 8-ounce chocolate bars is approximately normal with a mean of…

A: Given: X~N8.1,0.1 Where X denotes the actual weight.

Q: The bell curve below represents the distribution for testing times. The scale on the horizontal axis…

A: Given :

Q: A standardized exam's scores are normally distributed. In a recent year, the mean test score was…

A: Given,mean(μ)=20.9standard deviation(σ)=5.3

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

A: We have to find  correct answer of graph and probability...

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

A: According to the given information, we have Z score = -1.54 (Right tailed)

Q: The time to complete an exam is approximately Normal with a mean of 38 minutes and a standard…

A: The mean is 38 and the standard deviation is 9.

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

A: We have find given probability...

Q: n the Oreo factory, the mean mass of a cookie is 40 grams with a quality control standard deviation…

A: In the Oreo factory, the mean mass of a cookie is 40 grams with a quality control standard deviation…

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

A:

Q: a. The probability is 0.0730 (Round to four decimal places as needed.) b. The probability is (Round…

A: Let X be the random variable from normal distribution with mean (μ) = 205.5, standard deviation (σ)…

Q: a. The probability that a pregnancy will last 308 days or longer is (Round to four decimal places as…

A:

Q: Find the indicated z score. The graph depicts the standard normal distribution with mean 0 and…

A: graph is

Q: The method of tree-ring dating gave the following years A.D. for an archaeological excavation site.…

A:

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

A:

Q: Sketch a standard normal curve and shade the area that lies to the left of a. 2.13, b.-156 c, 0, and…

A: The normal dist. is symmetric and it has a bell-shaped curve.