The breaking strength of a certain rivet used in a machine engine has a mean 5000 psi and standard deviation 400 psi. A random sample of 36 rivets is taken. Consider the distribution of the sample mean breaking strength. What sample n would be necessary in order to have to have a probability of 0.99 that the sample mean is between 4900 and 5100?

Q: Find the Fan Cost Index for the Atlanta Hawks.   Team Ticket Other Drink Soft Drink Hot Dog Parking…

A: Given Information: Consider the given information: Team Ticket Other Drink Soft Drink Hot Dog…

Q: Healthy adults need at least 7 hours of sleep a night. (Teens need at least 9 hours.) A survey of…

A: Given information: It is given that healthy adults need at least 7 hours of sleep a night.

Q: #4 GIVEN THE 15 NUMBERS BELOW: 50, 50, 52, 55, 60, 60, 60, 65, 66, 66, 70, 72, 75,75, 80 FIND: (a)…

A: We have given the following data 50,50,52,55,60,60,60,65,66,66,70,72,75,75,80 Since the data is…

Q: Find the 5 number summary for the data shown. 16 18 37 58 76 14 35 50 67 86 5 number summary: 1 12…

A: It is give that  the discrete  data is . 1,14,35,50,67,86,6,18,37,58 76

Q: P(t10>1.75), where t10 has a t distribution with 10 degrees of freedom

A: Answer: From the given data, Given distribution is t distribution Degrees of freedom (df) = 10

Q: A new surgery is successful 70%of the time. If the results of 7 such surgeries are randomly sampled,…

A:

Q: In a hand of poker, 5 cards are dealt from a regular deck of 52 playing cards. How many different…

A: Given problem  Given that   In a hand of poker, 5 cards are dealt from a regular deck of 52…

Q: Suppose a simple random sample of size n=1000 is obtained from a population whose size is…

A: The question is about sampling distribution Given : Sample size ( n ) = 1000 Popl. size ( N ) =…

Q: Because of high tuition costs at state and private universities, enrollments at community colleges…

A: Data is given from year 2001 to 2009 We have to plot time series plot and we have to calculate…

Q: Suppose a simple random sample of size n=1000 is obtained from a population whose size is…

A: Here is given that, sample is 1000 and proportion is 0.58. We will use binomial distribution to find…

Q: The unemployment rate in a city is 15%. If 6 people from the city are sampled at random, find the…

A: The unemployment rate in a city is 15%.

Q: Suppose you play a game with a biased coin. You play each game by tossing the coin once.  and . If…

A: Let X be the money I win or Loss, as the coin is biased  let,P(head)=2/3,P(tail)=1/3 X P(X)…

Q: many college graduates are employed full-time have longer than 40 hour work weeks. Suppose if we…

A: The standard deviation is 6.20, margin of error is 1.4 and confidence level is 95%.

Q: About the area under the curve of the standard normal distribution is between z = 1.34 and z = 1.34…

A: Given problem Given that   We have to find the area under the curve of the standard normal…

Q: 1. Suppose that we observe data {y;}_₁ independently generated from a distribution with probability…

A: Solution

Q: A school restaurant offers a special meal: Php 200.00 for a sandwich, sides, dessert, and drinks.…

A: Given information: No. of variables=4 (Sandwich, Sides, Dessert, Drinks)Sandwich=5 (Chicken, Egg,…

Q: Write a report of the different research design with exceptional  of experimental research  design.

A: Experimental research is the most familiar type of research design for individuals in the physical…

Q: A pharmacist receives a shipment of 20 bottles of a drug and has 4 of the bottles tested. If 4 of…

A:

Q: In an article in Marketing Science, Silk and Berndt investigate the output of advertising agencies.…

A: Solution: a) Given information: n=400 Sample sizex= 7.46 Sample mean σ=1.42 Population standard…

Q: A book can be classified as either non-fiction or fiction. Suppose that 96% of books are classified…

A: It is given that 96% of books are classified as fiction.

Q: what is probability

A: Probability is ranges between 0 to 1.

Q: Which line graph (pink or purple) would be in a proper Ogive graph?

A: Ogive: Ogive is a graphical representation of cumulative distribution. This is used to find the…

Q: A trainee pilot has a 0.7 chance of passing the written exam for a private pilot's license.…

A:

Q: Students at a major university are complaining of a serious housing crunch. They complain that many…

A:

Q: A research study was conducted to examine the clinical efficacy of a new antidepressant. Depressed…

A: There are three independent samples which are Placebo, Low Dose and MODERATE Dose. We have to test…

Q: 4.102 BUY-SIDE VS. SELL-SIDE ANALYSTS' EARNINGS FORECASTS. Financial analysts who make forecasts of…

A:

Q: The variable X and Y are connected by equation aX + bY + c = 0. Show that the correlation between…

A:

Q: of her customers. In particular, she would like to investigate the belief that the ages of the…

A: Given, Source Table :

Q: Amusement parks sell day passes and season passes. A day pass to Fun World costs $41 and provides…

A: A day pass to Fun World costs $41 and provides admittance to the amusement park for one day.  A…

Q: Let X be a normally distributed random variable with a mean of 12 and a standard deviation of 1.25.…

A: given data  normal distribution μ = 12σ = 1.25P(x<14) = ?

Q: Suppose that 60% of all California motorists are insured. Find the probability  that more than 55%…

A: given data  P(insured) = p = 0.60 sample size n = 100 P(p^>0.55) = ?

Q: Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A…

A: given data age Respond refuse to respond total 18-21 89 16 105 22-29 233 19 252 total 322…

Q: Anita's, a fast-food chain specializing in hot dogs and garlic fries, can monitor how many customers…

A: Given,n=4p=0.45q=1-0.45=0.55Let X=no.of customers will order food for delivery.X~Binomial(n=4 ,…

Q: In a sample of 1000 people in maharashra, 540 are rice eaters and the rest are wheat eaters. Can we…

A:

Q: producer wishes to set up a set of control shown in the table. Item #1 Sample 1 2 54.5 50.6 Item #2…

A: Given, The number of samples = 9The number of observations in each sample (n) = 4

Q: this is a different question. it is not my question

A: Given that Sample size=17  Probability of success=0.748  Probability of failure=0.252 We have to…

Q: Makayla is flying from Memphis to Oklahoma City with a connection in Denver. The probability her…

A:

Q: Find the mode for the given sample data 32,45,12,67,32,15,17,67,32,10

A: Answer: Given that, The sample data is: 32,45,12,67,32,15,17,67,32,10 Sample size (n) = 10

Q: Let X be a random variable with the following probability distribution Value x of X 2 3 لیا 4 5 PX=x…

A: E(X)=∑X.P(X)E(X2)=∑X2.P(X)V(X)=E(X2)-(E(X))2

Q: please give some detailed solution and please do not copy other's work,thanks!! According to a union…

A:

Q: Using the regression analysis and graphs from RStudio, answer the following questions in complete…

A: It is given that the regression analysis output through RStudio.

Q: probability that a certain hockey team will win any given game is 0.3686 based on their 13 year win…

A: Given that  p = 0.3686 , q = 1 - p = 1 - 0.3686 = 0.6314 , n = 12 X ~ Binomial (n = 12 , p = 0.3686)…

Q: Round all answers to 4 decimal places. a. A bag contains 9 white marbles, 4 red marbles, and 5 green…

A: Given that  A) Total marbles = N = 9 + 4 + 5 = 18 White Marbles = W = 9 Red marbles = R = 4  Green…

Q: Use the pop up below to find the area under the standard normal curve from 0 to - 2.24. Click the…

A: From the provided information, The area need to be obtained under the standard normal curve from 0…

Q: For the first two weeks of the month of January 2022, the daily average of calls for roadside…

A: From the provided information, Number of observations (n) = 14 Arranging the data into ascending…

Q: Listen The linregress() method in scipy module is used to fit a simple linear regression model using…

A: Given that  Level of significance =alpha =0.05

Q: 1. The General Social Survey asked a sample of adults how many siblings (brothers and sisters) they…

A: Since you have posted a question with multiple with sub-parts, we will solve first 3 sub-parts for…

Q: Let X be a random variable with the following probability distribution. Valuex of X 0 10 20 30 40 50…

A: To find: 1. Expected value: E(X) 2. Variance of X : VAR(X)

Q: 7. Is it reasonable to interpret the y-intercept of the regression line? Why or why not?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: There is some speculation that a simple name change can result in a short-term increase in the price…

A: From the provided information, Mean (µ) = 0.80% Standard deviation (σ) = 0.18%