Use this information for Questions 8 and 9. Birth weights at a local hospital have a Normal distribution with a mean of 110 ounces and a standard deviation of 15 ounces. 8. The proportion of infants with birth weights above 125 ounces is a. 0.500. b. 0.159. c. 0.341. d. 0.841. 9. The proportion of infants with birth weights between 125 ounces and 140 ounces is a. 0.819. b. 0.636. c. 0.477. d. 0.136.

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A:

Q: Given that the mean is 80 and the standard deviation is 10, which of the following is different?…

A: The different quantity can be found by calculating the raw score of z score

Q: Need the answer to question 6.

A: (6)The provided information are:

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A:

Q: Answer the following questions given that the mean weekly quiz score for a class is 72 with a…

A: Given data,Mean μ=72sd     σ=8P(70<X<90)=?

Q: 5) Explain what the value for the standard deviation in problem #4 tells us about Le commute times.

A:

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A: We have given that x̅ = 77 s = 18.4

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Q: Table 4.4 shows the mean and standard deviation for total scores on the SAT and ACT. The…

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A:

Q: Question 10 Determine the standard deviation of the prices of the 100 cars sold by the auto dealer…

A: When data is given by a set containing the data points, then it is termed as raw data. To analysis…

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A: Given that, Mean = 26.00 Standard deviation = 4.50

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A: We have to find parameters.

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Q: an of 6363 and a standard deviation of 10.4.10.4. What percentage of the data is between 4545 and…

A: Given:Mean=mu=63Standard deviation=sigma=10.4Data point=x=45 and 77 The formula of z-score is:…

Q: Question 3 Suppose Andrew earns $45,000 EC per month. The average salary for everyone in Andrew's…

A: We have given that.   X~N( μ , ?^2 )     Z-score =( x - μ )/?

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Q: For a data set of the pulse rates for a sample of adult females, the lowest pulse rate is 35 beats…

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Q: For the values 2, 4, 6 the standard deviation is O 1.36

A: Given: The values are: 2, 4, 6       To find: Standard Deviation = ?

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Q: QUESTION TWo a) The weekly wages of employees of Volta gold are normally distributed about a mean of…

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Q: For a data set of the pulse rates for a sample of adult​females, the lowest pulse rate is 33 beats…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.