High School Competency Test A mandatory competency test for high school sophomores has a normal distribution with a mean of 400 and a standard deviation of 114. Round the final answers to the nearest whole number and intermediate z-value calculations to 2 decimal places. Part 1 of 2 (a) The top 1% of students receive $500. what is the minimum score you would need to receive this award? The minimum score needed to receive the award is 665 Part: 1/ 2 Part 2 of 2 (b) The bottom 4% of students must go to summer school. What is the minimum score you would need to stay out of this group? The minimum score needed to stay out of this group is

Q: A survey finds that the average Malaysian household is expected to spend RM 2723.65 on…

A: Given Information: Sample size n=54 Sample mean x¯=2723.65 Sample standard deviation s=1493…

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Q: 20 26 40 39 25 36 34 Solve for the mean deviation and standard deviation

A: Given : 20  26  40  39  25  36  34 Here  n=7 i.e Sample size (n)=7

Q: On Assignment 11.15, you found the mean and standard deviation for X, the number of dots facing up…

A: Given: μ=3.5σ=1.7078

Q: Solve using R Caculator The average hourly wage for manufacturing workers in the United States is…

A: The data on the hourly wages of manufacturing workers is provided.The given data has a normal…

Q: The frequency distribution was obtained using a class width of 0.5 for data on cigarette tax rates.…

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Q: 3. Identifying Extreme Values: Using the Normal Table in Reverse Steps: 1) Sketch the normal curve…

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Q: Find the area of the shaded region The graph to the right depicts IQ scores of adults, and those…

A: Given  μ=100, σ2=152 X~N(μ=100,σ2=152) P(X>98)= ?  Note: This probability value calculated from…

Q: Data Set:        3, 7, 11, 13, 16 The mean of this data set is  (blank) The summation of the squares…

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Q: 3 A random sample of 1000 oranges showed that the mean amount of juice per orange was 8,4 fluid…

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Q: Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those…

A: given data  normal distribution  μ= 100σ= 15 p(70<x<125) = ?

Q: 10) The annual precipitation for one city is normally distributed with a mean of 27.5 inches and a…

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Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

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Q: If only the top 15% of the applicants are selected, find the cutoff score. Round z-value…

A: We have given that the random variable score i.e, X follows normal distribution with a mean of 64…

Q: The average time for a student to complete this quiz is 24 minutes with a standard deviation of 2…

A: We have given that,  The students quiz are normally distributed with mean(mu) = 24 and standard…

Q: Police Academy Acceptance Exams In order to qualify for a police academy, applicants are given a…

A: Here it is given that the physical fitness scores are normally distributed with mean=56 and SD=8. We…

Q: Tign pres of adults, and res are normally distributed with a mean of 100 and a standard deviation of…

A: Population mean=100 , population standard deviation =15

Q: Police Academy Acceptance Exams To qualify for a police academy, applicants are given a test of…

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Q: A standardized test, deigned to measure the mathematical skill level of seventh graders is said to…

A: Given information: μ=75, n=25x¯=79, s=10 Null hypothesis: H0 : μ=75 Alternative hypothesis: HA :…

Q: Age of Senators The average age of senators in the108th Congress was 59  years. If the standard…

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Q: OF 62 and a standard deviation of 12. If only the top 20% of the cants are selected, find the cutoff…

A: Let X be the 20% of the scores from Normal distribution with mean (μ) = 62 and standard deviation…

Q: CH5: A population of scores has u = 126. In this population, a score of X = 138 corresponds to z =…

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Q: Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 42,…

A: We have given that Mean(µ) = 42 Population Standard deviations (σ) = 24 Sample size (n) = 90

Q: At least 88.89% of the data will lie between and minutes.

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Q: The sample mean amount of savings is $ 237 (Round to the nearest dollar as needed.) The sample…

A: It is given that the data in the table represent the responses to the survey amount of savings.

Q: True/False Write T or F in the blank to indicate whether the statement is true or false. A statistic…

A: Given that  We have to find True/False:  A statistic is a piece of data that describes an entire…

Q: The distances golf balls travel under laboratory testing conditions are normally distributed. The…

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Q: IQ scores are normally distributed with mean = 100 and standard deviation = 16. What IQ score does…

A: GIVEN DATA, NORMAL DISTRIBUTIONμ=100σ=16we have to find out the IQ score does the letter A represent…

Q: Electricity bills: According to a government energy agency, the mean monthly household electricity…

A: The mean monthly household electricity bill was $110.10 and the standard deviation is $21.00.

Q: Hospital Emergency Waiting Times The mean of the waiting times in an emergency room is 87 minutes…

A: We have given the waiting times in the emergency room.For additional treatment-For discharged-

Q: Looking at the picture above, the x with the bar over it represents the   While the "s" represents…

A: The provided x with bar over it represents the sample mean and “s” represents the sample standard…

Q: Part 1 of 5 (a) What is the probability that the sample mean tax is less than $8200? Round the…

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Q: Coffee: The National Coffee Association reported that 65% of U.S. adults drink coffee daily. A…

A: Given that Sample size n=300 Population  proportion p =0.6

Q: Annual income: The mean annual income for people in a certain city (in thousands of dollars) is 41,…

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Q: Tossing Coins Find the mean, variance, and standard deviation for the number of heads when 11 coins…

A: Given that  Number of heads when 11 coins are tossed is. n=11 The probability of head when tossing…

Q: Example For 100 observations, the arithmetic mean and standard deviation are 8 and V10.5 . For 50…

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Q: 8. The high temperatures in Virginia Beach during the month of July are normally distributed with a…

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Q: A distribution of values is normal with a mean of 190 and a standard deviation of 4. Find the…

A: Given: Population mean μ= 190 Standard deviation σ= 4

Q: What proportion of the population score above an 18 on the ACT? What proportion of students score…

A: Given: Let X denote the SAT score thus, X~ N(500, 1002) Let Y denote the ACT score thus, Y~ N(20,…