If the average height of 500 students in a secondary school is 151 cm, with a standard deviation of 15 cm, and assuming that the lengths are normally distributed, find the expected value of the students whose heights are between 120 and 155 cm. Note that 0.6064 = (0.27)p and 0.9808 = (2.07)p 0.2587 ( c) 0.7582 b) 0.8572 0.5872 (

Q: Suppose that you are interested in determining the average height of a person in a large city. You…

A: Solution: Given information: n= 400 Sample size  x=63 inches Sample mean s= 6 inches Sample standard…

Q: Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury ( mmHg)…

A:

Q: According to a survey, the mean height for men is 69.1 inches. In a sample of 280 men between the…

A: given data claim : μ < 69.1n = 280x¯ = 68.9σ = 2.88

Q: The trunk diameter, in centimeters,  of a certain variety of pine tree is represented by X~N(150,…

A: Let X denote the trunk diameter in centimetres of a certain variety of pine tree and it follows…

Q: Assume that the mean systolic blood pressure of normal adults is  120millimeters  of mercury (…

A: given data,normal distributionμ=120σ=5.6n=35p(120<x¯<122.2)=?

Q: Assume that the mean systolic blood pressure of normal adults is 125 milliliters of mercury (mL Hg)…

A: Given,mean(μ)=125standard deviation(σ)=5.9sample size(n)=30

Q: Assume that readings on thermometers are normally distributed with a mean of 0 and a standard…

A:

Q: Assume that females have pulse rates that are normally distributed with a mean μ=75.0 and a standard…

A:

Q: was 5.34 cm. Let Y= the height of 16 to 18-year-old males from 1984 to 1985. Then Y ~ N(162.36,…

A: Here it is given that -  Y ~ N(162.36,5.34) Mean (μ) = 162.36 Standard deviation (σ) = 5.34 X…

Q: According to a survey, the average base salary for women in sales is higher than the average base…

A: From the provided information, The average base salary for women is $5800 per month. Therefore, the…

Q: Assume that the mean systolic blood pressure of normal adults is 120 millimeters of mercury ( mmHg)…

A: From the provided information, Mean (µ) = 120 Standard deviation (σ) = 5.6 X~N (120, 5.6)

Q: Suppose that an airline uses a seat width of 16.3in. Assume men have hip breadths that are normally…

A: Given,mean (μ)=14.5standard deviation(σ)=0.9sample mean (n)=120

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: In a population of 1000 bacteria a researcher counts that there are 200 bacteria that are more than…

A: 1.5 times the standard deviation value.

Q: The average American man consumes 9.6 grams of sodium each day. Suppose that the sodium consumption…

A: Given Information : The average American man consumes 9.6 grams of sodium each day. Suppose that…

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: Given that Mean() = 0Standard deviation() = 1X ~ N (, )= N(0,1)

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A:

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: Given,   Sample size = 70 Sample mean = 3.1 Population standard deviation = 1.14

Q: Assume that the readings on the thermometers are normally distributed with a mean of 0 degrees and…

A:

Q: Assume that females have pulse rates that are normally distributed with a mean of u=74.0 beats per…

A: Mean = 74.0 Standard deviation = 12.5 Sample size =

Q: The brain volumes ​(cm3​) of 50 brains vary from a low of 908 cm3 to a high of 1478 cm3. Use the…

A: Given: Min=908 Cm3Max=1478 Cm3Exact standard deviation =174.4

Q: A lightbulb is advertised as lasting 1000 hours with a standard deviation of 150 hours. Assume the…

A: It is given that the mean and standard deviation are 1,000 and 150, respectively.

Q: Assume that the readings at freezing on a bundle of thermometers are normally distributed with a…

A: