4. In a process for manufacturing glassware, glass stems are sealed by heating them in a flame. The temperature of the flamevaries a bit. Here is the distribution of the temperature, X, measured in degrees Celsius:TemperatureProbability5405455505555600.10.250.30.250.1a) Calculate the mean temperature and the standard deviation of the distribution of temperatures.b) The target temperature is 550°C. What are the mean and standard deviation of the number of degrees off target,Y = X – 550?c) A manager asks for results in degrees Fahrenheit. What are the mean and standard deviation of the temperature on theFC+32Fahrenheit scale? (

Answered: Image /qna-images/answer/a32a916b-3f0e-4957-8948-a7eb04ad83ce.jpg

Answered: 4. In a process for manufacturing…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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At King Kong High School, the average weight of senior boys is 168 lbs. with a standard deviation of 7 lbs. the average weight for senior girls is 117 lbs. with a standard deviation of 5 lbs. Suppose a new distribution is created by adding the boys' weights and the girls' weights together. assuming that the weights for boys and girls are independent, which of the following is true? I. the mean of this new distribution is 168+117 II. The standard deviation of this new distribution is 5+7 III. The variance of this new distribution is 5^2+7^2
Assume that thermometer readings are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A thermometer is randomly selected and tested. For the case below, draw a sketch, and find the probability of the reading. (The given values are in Celsius degrees.) Between 1.00 and 2.25 Draw a sketch. Choose the correct graph below.
A city's mean minimum daily temperature in February is 25°F.Suppose the standard deviation of the minimum temperature in February is 3°F and that the distribution of minimum temperatures in February is approximately Normal. What percentage of days in February has minimum temperatures below freezing (32°F)? Round to the nearest integer as needed.
Assume that ﬁnal exam scores in a given course are approximately normally distributed with a mean of 75 and a standard deviation of 10 points. In a class of 200 students, how many would you expect to fail the exam (i.e., score less than 60) (note: scores can only be approximately normally distributed, because the minimum score is 0, but this should not alter the answer, given how large the mean is relative to the standard deviation).
The systolic blood pressure (given in millimeters) of males has an approximately normal distribution with mean µ = 125 and standard deviation σ = 14. Systolic blood pressure for males follows a normal distribution. a. Calculate the z-scores for the male systolic blood pressures 102 and 149 millimeters. Round your answers to 2 decimal places. z-score for 102 millimeters: z-score for 149 millimeters: Find the probability that a randomly selected male has a systolic blood pressure between 102 and 149. Round your answer to 4 decimal places.
Assume that the readings at freezing on a batch of thermometers are normally distributed with a mean of 0°C and a standard deviation of 1.00°C. A single thermometer is randomly selected and tested. Find the probability of obtaining a reading less than -0.24 C. Shade: Left of a value Click and drag the arrows to adjust the values. -3 -2 0. 1. 2 -1.5 0.24 C) P(Z 0.24) P(r< Submit Question prime video hulu
Assume that the readings on the thermometers are normally distributed with a mean of 0° and standard deviation of 1.00°C. Assume 2.1% of the thermometers are rejected because they have readings that are too high and another 2.1% are rejected because they have readings that are too low. Draw a sketch and find the two readings that are cutoff values separating the rejected thermometers from the others.
3. In a normal frequency distribution of serum sodium concentrations, the mean is 141 mEq/L and the standard deviation is 3.2 mEq/L. Which of the following most closely represents the percentage of values in the interval between 137.8 mEq/L and 144.2 mEq/L? OA) 25% B) 50% C) 65% OD) 95% OE) 99% 456

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