Suppose a nomal distribution has a mean of 50 and a standard deviation of 3. What is Aes 47y OA 0.16 OR.0.975 O c. 0.025 O D. 0.84

Q: The Weather Underground reported that the mean amount of summer rainfall for the northeastern US is…

A: Solution Here we will use one sample t test to test the mean amount of summer rainfall for the…

Q: A given distribution has a population mean, μ, of 144 and a population standard deviation, σ, of 6.…

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Q: Need the answer to question 6.

A: (6)The provided information are:

Q: Assuming that the scores of the student in a test are normally distributed with the mean of 40 and…

A: Given data mean =40 ,standard deviation =6

Q: Suppose the people living in a city have a mean score of 49 and a standard deviation of 77 on a…

A: Hello there! I see there are more than 3 sub parts in the question. According to our policies can…

Q: A random sample of 40 students has a mean annual earnings of $3120 and assume that the population…

A: The margin of Error (MoR): It is the Range of values that has the sample statistics in the…

Q: In a symmetric distribution with HH = 48 and standard deviation o = 3 Approximately what percent of…

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Q: SEM for a sample of size 100 and standard deviation of 5.6 is equal to? O-14/25 O 23/100 O 67/100…

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Q: If the average grade on an exam was 75% and the standard deviation was 4%, what would the three uper…

A: Empirical rule has  Upper limit  Mu +K. sigma

Q: 1. The scores on a test have a mean of 100 and a standard deviation of 15. If a personnel manager…

A: Formula : Z =(X - μ)/σ

Q: A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean…

A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: A given distribution has a population mean, μ, of 114 and a population standard deviation, σ, of 12.…

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Q: Given a normal distribution with a standard deviation of 14, what is the mean if 40% of the values…

A: We know that; X~Normal(μ,σ2) ⇒Z=X-μσ~Normal(0,1) Let X be the random variable with a normal…

Q: Given a distribution that has a mean of 37 and a standard deviation of 12, calculate the probability…

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Q: Suppose that the scores on a statewide standardized test have a bell shape distribution with a mean…

A: Given that Mean = 79,s.d=6 (b) P(X>97 )=? (c) P(X<73) =? (d)P(61<x<85) =?

Q: Suppose samples of size 100 are drawn randomly from a normal population that has a mean of 20 and a…

A: Solution: Let X be the random variable. From the given information, X follows normal distribution…

Q: The results of a calculus exam are normally distributed with a mean of 76 and a standard deviation…

A: Obtain the Z-score for the random variable that X equals 70. The Z-score for the random variable…

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Q: A certain machine makes electrical resistors having a mean resistance of 50 ohms and a standard…

A: As per our guidelines we are suppose to answer only one question.

Q: Suppose the average math SAT score for students enrolled at Madison College is 507.3 with a standard…

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Q: The diameters of watermelons at a local supermarket are normally distributed with a mean of 10…

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Q: Suppose that the mean cranial capacity for men is 1070 cc (cubic centimeters) and that the standard…

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Q: Given a standardized normal distrubtion (with a mean of 0 and a standard deviation of 1, as in Table…

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Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(x 93)? O A.…

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Q: Suppose that the price of an item is normally distributed with a mean of 50 and a standard deviation…

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Q: If one normal distribution has a standard deviation of 5, and another has a standard deviation of…

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A: Given Margin of error=1 Standard deviation=3.6 Significance level=0.05

Q: Suppose a normal distribution has a mean of 50 and a standard deviation of 3. What is P(x≤ 47)? OA.…

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Q: 13. When n < 30 and the population standard deviation is not known,, what is the appropriate…

A: t-test is useful for testing those samples whose size is less than 30. Because  if the size of the…

Q: A normal distribution has a mean of u=54 and a standard deviation of o=6, what is the probability of…

A: Let "X" be the raw score.

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Q: Suppose that the mean cranial capacity for men is 1170 cc (cubic centimeters) and that the standard…

A: (a) Given that, the value of mean is μ=1170 and standard deviation is σ=300 cc. Use the Empirical…

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Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(xs 93)? O A.…

A:

Q: If a normal distribution has a mean of 35 and a standard deviation of 5, then The median is 35 and…

A: We know that normal distribution is symmetricaldistribution .i.e mean=median=mode

Q: Given a normal distribution with mean of 67 and assumes a value less than 50 is 0.0034.

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Q: A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean…

A: (a) From the given information The mean is 65 in. and a standard deviation is 2.5 in. The mean x¯ of…

Q: Assume that z-scores are normally distributed with a mean of 0 and a standard deviation of 1. If P(z…

A: Solution-: Given: Z are normally distributed with mean of 0 and a standard deviation 1  If…

Q: Given a normal distribution with mean of 80 and standa assumes a value greater than 76 is 0.3085.

A:

Q: Suppose a normal distribution has a mean of 79 and a standard deviation of 7. What is P(xs 65)? O A.…

A: Normal distribution has mean =79 and SD = 7, p(X&lt;=65) = ?

Q: Suppose that the mean cranial capacity for men is 1190 cc (cubic centimeters) and that the standard…

A: Empirical rule (68-95-99.7 rule): About 68% of data lies within the one standard deviation of the…

Q: Given a normal distribution with a mean of 130, and a standard deviation of 4.5, find the value of a…

A: Z-score corresponding to a normal variable value X is      (X-mu)/sigma Where,      X = normal…

Q: Suppose that the mean cranial capacity for men is 1040 cc (cubic centimeters) and that the standard…

A:

Q: Suppose that the mean cranial capacity for men is 1160 cc (cubic centimeters) and that the standard…

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Q: In a certain​ distribution, the mean is 70 with a standard deviation of 5. At least what fraction…

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Q: In order to set rates, an insurance company is trying to estimate the number of sick days that full…

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Q: What proportion of a normal distribution corresponds to z scores greater than -0.82?   Question 10…

A: According to the given information, we have Z score = -0.82 (Right tailed)

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.