Question 2 The Histogram shows the number of Histogram absent days for students during the first 10 term of the year. 8 6 Using the information from the histogram, find the mean and the standard deviation of the collected data set. 2 3 4 5 6 (Hint: If the frenquency for 2 absent days is 4, this means 2 is repeated 4 times). Number of absent days Interpret the values you got. Frequency

Q: An independent knowledge, attitudes and practices survey on COFLU-20 was conducted in a large…

A:

Q: QUESTION 2 A dietitian is looking into the average weight of middle school & High school students in…

A: We have given that,  Population mean (μ) = 47.47, population standard deviation (σ) = 14.67 and…

Q: QUESTION 7 Select the CORRECT statements. It is usually a good idea to have less than 4 classes in a…

A:

Q: Question 4 Men's heights are normally distributed with a mean of 69.0 inches and a standard…

A: Given that For women Mean = 63.6 ,s.d =2.5 For men mean = 69,s.d =2.8

Q: QUESTION 3 A Computer manufacturer wants to estimate the mean number of defective microchips it…

A: Given,margin of error(E)=0.53standard deviation(σ)=9.61α=1-0.95=0.05α2=0.025Z0.025=1.96     (from…

Q: QUESTION 8 Entry to a certain University is determined by a national test. The scores on this test…

A: Solution

Q: Question 1) The distribution of IQ (Intelligence Quotient) is approximately normal in shape with a…

A: The normal distribution is symmetric about the mean. Empirical Rule : The empirical rule state that,…

Q: Question 3 According to a study done by Pierce students, the height for Hawaiian adult males is…

A: Given that  Normally distributed with an average of 64 inches and a standard deviation of 2.0…

Q: Question #2 A normal distribution has a mean of 45 (μ = 45) and a standard deviation of 10. At what…

A: Note: According to Bartleby guidelines expert solve only one question and rest can be reposted

Q: Among 157 African-American men ,the mean systolic blood pressure was 146 mm Hg with a standard…

A: From the provided information, Sample size (n) = 157 Sample mean (x̅) = 146 Sample standard…

Q: QUESTION 2 A Computer manufacturer wants to estimate the mean number of defective microchips it…

A: The population standard deviation is 9.71, margin of error is 0.56, and confidence level is 95%.

Q: QUESTION 11 Cholesterol. The American Heart Association reports that a total cholesterol score of…

A:

Q: A wall clock strikes the bell once at 1 o’ clock, 2 times at 2 o’ clock, 3 times at 3 o’ clock and…

A: 7) A wall clock strikes the bell once at 1 o’clock, 2 times at 2 o’clock, 3 times at 3 o’clock and…

Q: An independent knowledge, attitudes and practices survey on COFLU-20 was conducted in a large…

A: 3. State the hypotheses That is, the population mean score for attitude towards COFLU-20 is equal…

Q: QUESTION 1 The manager of a restaurant claims that customers wait 8 minutes on average to get…

A:

Q: QUESTION 2 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 22. The…

A: Given : Pop. mean (μ) = 22 Sample size (n) = 62 Sample mean (X¯) = 13 Standard deviation (S) = 10…

Q: QUESTION 19 The amounts of times that adults sleep are normally distributed with a mean of 6.8 hours…

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Q: Individual scores for practices towards COFLU-20 are found to be normally distributed with a mean of…

A: Note: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Abbi is a final year student in Bath Spa University doing her dissertation. After discussing with…

A: Here the monthly data is given on stock price from 1st MAY 2019 to 1st APRIL 2020

Q: QUESTION 15 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 17.…

A: Null hypothesis: The average weight has gone down. H0 : μ = 17. Alternative hypothesis: H1 :μ  ≠ 17

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 68…

A: Given information: μ=68σ=18 d. Q1: PX≤Q1=25%PX-μσ≤Q1-μσ=0.25Pz≤Q1-6818=0.25         Q1-6818=-0.6745,…

Q: Scores on a history test have average of 80 with standard deviation of 5. What is the z-score for a…

A: Let X represents the score on a history test. Given that, Mean=μ=80Standard deviation=σ=5

Q: QUESTION 10 Heights are generally normally distributed. Men have a mean of 69.5 inches and standard…

A: Part D).For Men it is given that, mu=69.5sigma=2.4x=64 and 77 The formula for z-score…

Q: QUESTION 2 The IQ test has a mean of 100 and a standard deviation of 15. Suppose a simple random…

A: Given data is appropriate for testing of hypothesis to test for z-test for single mean. Because it…

Q: Question 5 5 pts The average height of young adult females has a normal distribution with standard…

A: Given information Standard deviation= 4 inches Margin of error = 1 Confidence level = 94% = 0.94…

Q: QUESTION 2 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 15. The…

A: Given data : sample size, n =34 sample mean, x̄ = 13 sample standard deviation,s=…

Q: Question 3 Suppose that the fill amount of bottles of soft drink has been found to be normally…

A: As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost other…

Q: Question 6 (For question 6, just write down the answer. No explanation is needed.) (a) Sam and Peter…

A:

Q: The pucks used by the National Hockey League for ice hockey must weigh between 5.5 and 6.0 ounces.…

A: Let X denote the weights of pucks produced at a factory are normally distributed with a mean of 5.63…

Q: Question 2 It is known that the population wellbeing level of female follows a normal distribution.…

A: State the hypotheses. That is, there is no evidence to conclude that the average well being score…

Q: An independent knowledge, attitudes and practices survey on COFLU-20 was conducted in a large…

A: Note- As per our policy we can not answer more than 3 sub-parts. So if you want assistance for other…

Q: An independent knowledge, attitudes and practices survey on COFLU-20 was conducted in a large…

A:

Q: QUESTION 20 It was found that the mean annual turnover rate of the Aspirin medicine bottle is 16.…

A: Given that: Population mean= μ= 16Sample mean = x¯= 13Sample standard deviation= s= 11Sample size =…

Q: a lower waiting time? The 10 randomly selected patients who went to the emergency room at rural…

A:

Q: QUESTION 14 When they started filming the first season of Mighty Morphin' Power Rangers, the…

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Q: If the probability of engine malfunction during any one hour period is p = 0.02 and Y denotes the…

A: Given data, the probability of engine malfunction during any one hour period is p = 0.02 Let Y…

Q: During 2008, college work-study students earned a mean of $1478. Assume that a sample consisting of…

A: The hypotheses are given below:Null hypothesis:H0:µ=1478.Alternative hypothesis:H1:µ>1478. The…

Q: Question 1 Maria notices that her commute time to get to work varies slightly from day to So, she…

A:

Q: We wish to check that normal body temperature may be more than 98.6 degrees for a certain…

A: It is given that Sample size n = 18 Sample mean = 98.87 Sample SD = 0.482 Level of significance =…

Q: nsible for food section of a magazine investigated the belief that grocery stores sell beef at a…

A: Suppose the population mean price of beef in fall is represented by μ1 where as the population mean…

Q: Question 4 According to a study done by Pierce College JBLM, the height for Hawaiian adult males is…

A: Given that  μ = 66 , ? = 2.5 X~Normal(μ = 66 , ? = 2.5 ) Find P(63.5<X<68.5) Formula for…

Q: question(3): Anar scored 78 on a test that had a mean of 72 and a standard deviation of 2.7 .…

A: Given: For Anar Scored (X)=78 Mean = 72 Standard deviation = 2.7   For Omid Scored (X) = 66 Mean =…

Q: A survey of 88 men found that an average amount spent on St. Patrick's day of $60 with a standard…

A: The sample sizes are 88 and 86.

Q: The amount of time that people spend at Grover Hot Springs is normally distributed with a mean of 71…

A: GivenMean(μ)=71standard deviation(σ)=16

Q: Question 23 The mean age when smokers first start is 13 years old with a population standard…

A: Given: n= 33.0 ,x̄= 12.0 ,σ= 1.9 µ= 13.0 ,significance level(∝)= 0.05

Q: QUESTION 2 The standard deviation can be calculated with a short cut if the list contains only two…

A:

Q: Question 2 A set of exam scores is normally distributed with a mean = 82 and standard deviation =6.…

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Q: QUESTION 3 A survey of 31 men found that an average amount spent on St. Patrick's day of $104 with…

A: To find: Test statistics

Q: The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and…

A: GivenMean(μ)=16standard deviation(σ)=6sample size(n)=15