Do men take less time than women to get out of bed in the morning? The 42 men observed averaged 7.6 minutes to get out of bed after the alarm rang. Their standard deviation was 2.2. The 52 women observed averaged 9 minutes and their standard deviation was 2.1 minutes. What can be concluded at the a = 0.01 %3D level of significance?

Q: a manufacturer claims that the mean lifetime of its fluorescent bulbs is 1050 hours. a homeowner…

A: Given n=40 Standard deviation =80 Xbar=1030 Level of significance=0.05 Mu0=1050

Q: In a certain city, the average 20- to 29-year old man is 72.5 inches tall, with a standard deviation…

A:

Q: a department store has daily mean sales of $28,372.72. The standard deviation of sales is $2000. On,…

A: The mean and standard deviation of daily sales is : x=$28372.72s=$2000 For Tuesday, the sales were…

Q: A lecturer noted that the grades of her students werenormally distributed with a mean of 73 and a…

A: We need to calculate Minimum score needed to make an Ahere alpha = 0.07,  from Z table we found…

Q: A boxer would like to know the mean diameter of a navel orange. If the standard deviation is 0.3…

A: Given Standard deviations=0.3 Margin of error=0.1 At 95% confidence z=1.96

Q: A shareholders' group, in lodging a protest, claimed that the mean tenure for a chief executive…

A: Given information: The investigator is specially interested to test whether the mean tenure for a…

Q: Doug has 1,000 bottle caps in his collection compared to Melissa's 2000 bottle caps. If the average…

A: Given,mean(μ)=1250standard deviation(σ)=500Doug bottle cap collection(X)=1000Melissa's bottle cap…

Q: According to a dietary study, high sodium intake may be related to ulcers, stomach cancer, and…

A:

Q: rcentage of fake followers was 13.3 with a standard deviation of 2.

A: Given, sample size (n) =53sample mean (x̄) = 13.3sample standard deviation (s1) = 9.8 Confidence…

Q: Do men take less time than women to get out of bed in the morning? The 42 men observed averaged 7.6…

A: Given , n1=42 , n2 =52  x¯1=7.6 , x¯2 =9 s1=2.2 , s2 =2.1 The hypothesis will be stated as below  H0…

Q: 2. The mean height for men is 70 inches with a standard deviation of 5 inches. Find the z- score of…

A: For the first question there is no data of 12 adult males in an office. So, iam answering for the…

Q: In a certain city, the average 20- to 29-year old man is 69.8 inches tall, with a standard deviation…

A: For an average 20-29 year old man: mean = 69.8 standard dev = 3.2 For an average 20 - 29 year old…

Q: 1.A particular leg bone for dinosaur fossils has a mean length of 5 feet with a standard deviation…

A: Note: Please repost 2nd question as i can answer only 1 question as per my policy. 1) Given…

Q: Do men take less time than women to get out of bed in the morning? The 57 men observed averaged 4.7…

A:

Q: Do men take less time than women to get out of bed in the morning? The 45 men observed averaged 4.8…

A: Given that, The 45 men observed averaged 4.8 minutes to get out of bed after the alarm rang. Their…

Q: The amount of money raised by Clayton State teams for the Statistics Games is normally distributed,…

A: As per our guidelines we are suppose to answer only one question. Given,mean(μ)=$360standard…

Q: The length of time it takes a Grade 11 student to play the Candy Crush computer app follows a normal…

A: Given that  The length of time it takes a grade 11student to play the candy crush computer is…

Q: A chemical engineer claims that the average daily yield of a chemical manufactured in a chemical…

A: The standard error is,

Q: In a certain city, the average 20- to 29-year old man is 69.4 inches tall, with a standard deviation…

A: Given information: Man Woman xM=75 inches.μM=69.4 inches.σM=3.0 inches. xW=70 inches.μW=64.5…

Q: In a certain city, the average 20- to 29-year old man is 72.5 inches tall, with a standard deviation…

A: From the provided information, The height of men is normally distributed with mean (µ) = 72.5 inches…

Q: The results of a recent survey indicate that the average new car costs $23,000, with a standard…

A: It is given that the mean new car cost is $23,000 with a standard deviation of $3,500.

Q: in city, the average 20- to 29-year old man is 69.4 inches tall, with a standard deviation of 3.0…

A: Let X be hight of Man from normal distribution with mean (μ) = 69.4, standard deviation (σ) = 3.0…

Q: A manufacturer claims that the mean lifetime of its lithium batteries is 1400 hours. A homeowner…

A: Given, Claim: A manufacturer claims that the mean lifetime pf its lithium batteries is 1400 hours.…

Q: In a certain​ city, the average​ 20- to​ 29-year old man is 69.6inches​ tall, with a standard…

A: Consider a random variable X which represents the height of 20 to 29 year-old man. The average…

Q: The scores on a marketing exam were normally distributed with a mean of 67 and a standard deviation…

A: Given data normally distributed with mean (μ) =67, standard deviation (σ) =9.Let ‘X’ be a normal…

Q: A grocery store's sales experience indicates that its daily apple sales follow a normal distri-…

A: (b) Obtain the cut off point for the top 10% of all daily apple sales. The cut off point for the top…

Q: In a certain city, the average 20- to 29-year old man is 69.4 inches tall, with a standard deviation…

A: Given: For Man:      Avg = 69.4      SD = 3.2 For Women:       Avg = 64.3        SD = 3.9 Who is…

Q: A study at the University of Colorado at Boulder shows that running increases the percent resting…

A:

Q: In a certain city, the average 20- to 29-year old man is 69.8 inches tall, with a standard deviation…

A: Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The typical college freshman spends an average of ?=150 minutes per day, with a standard deviation…

A: Solution: Let X be the time on social media. From the given information, X follows normal…

Q: Find the corresponding​ z-scores. Who is relatively​ taller, a​ 75-inch man or a​ 70-inch woman?…

A: *Answer:

Q: In a certain city, the average 20- to 29-year old man is 69.6 inches tall, with a standard deviation…

A:

Q: The diameter of a mason jar is 3 inches but can be as large as 3.05 inches and as small as 2.95…

A: From the question we'll find the value of Cpl. While we have given the UCL = 3.05 and LCL = 2.95…

Q: In a certain city, the average 20- to 29-year old man is 69.8 inches tall, with a standard deviation…

A: Mean (man)=69.8Standard deviation (man)=3.0Mean (woman)=64.1Standard deviation (woman)=3.9

Q: In a certain city, the average 20- to 29-year old man is 69.4 inches tall, with a standard deviation…

A: Solution-: Given: For Man: For Women: We find who is relatively taller, a 75 inch man or 70 inch…

Q: Suppose a locally owned coffee shop had an average daily revenue of $4,191 before some ordinance was…

A: Given Data: x¯=3922s=750n=30   Null and Alternate Hypothesis: H0: μ=4191 H1: μ≠4191

Q: In the past, patrons of a cinema complex have spent an average of $5.25 for popcorn and other…

A: Given Information: In the past, patrons of a cinema complex have spent an average of $5.25 for…

Q: The waiting time for patients at a local walk-in health clinic follows a normal distribution with a…

A: We have to find hypothesis..

Q: In a certain​ city, the average​ 20- to​ 29-year old man is 72.5 inches​ tall, with a standard…

A: z- score for a 75-inch man =  0.833 z- score for a​ 70-inch woman = 1.447

Q: certain​ city, the average​ 20- to​ 29-year old man is 69.4 inches​ tall, with a standard deviation…

A: Given: For females Mean μf=64.5 Standard deviation σf=3.8 Observed value (Xf) = 70 For males Mean…

Q: A livestock company reports that the mean weight of a group of young steers is 1130 pounds with a…

A:

Q: Books in the library are found to have an average length of 350 pages with a standard deviation of…

A: Given that, Books in the library are found to have an average length of 350 pages with a standard…

Q: The asking price for homes on the real estate market in Baltimore has a mean value of $286,455 and a…

A: Balitmore mean = 286455 sd = 11200 DenverMean = 188468sd = 8230

Q: In a certain​ city, the average​ 20- to​ 29-year old man is 72.5 inches​ tall, with a standard…

A: 72.5 3.1 75 64.3 3.8 70

Q: The number of text messages that teenagers send per month is normally distributed with a mean of…

A: We have given that  X~N(mu,sigma ^2) mu=3400,sigma =450 and X=4415 Z-socre =(X-mu)/sigma

Q: In a certain city, the average 20- to 29-year old man is 72.5 inches tall, with a standard deviation…

A:

Q: An analyst found that the average amount of money in bank accounts at his/her bank is $2,000 with a…

A:

Q: A recent newspaper article reported the results of a survey of well-educated suburban parents. The…

A: Given that 2-year-old children watching an average of 60 minutes of television each day watching an…

Q: recent study found that 61 children who watched a commercial for potato chips featuring a celebrity…

A:

Q: Cushman and Wakefield reported that the average annual rent for office space in Tampa was $17.63 per…

A: H0 : ? =17.63     H1 : ? ≠17.63     Population mean = ? = 17.63 Sample S.D = s =3.64…

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.