The number of pizzas consumed per month by university students is normally distributed with a mean of 13 and a standard deviation of 3. A. What proportion of students consume more than 16 pizzas per month? Probability  B. What is the probability that in a random sample of size 9, a total of more than 108 pizzas are consumed? (Hint: What is the mean number of pizzas consumed by the sample of 9 students?) Probability

Q: The time needed to complete an exam in a college campus is normally distributed with a mean of 80…

A: Given DataMean = 80Standard Deviation = 10a)Probability of completing the exam in one hour or less

Q: Regarding the speeds at which cars pass through a checkpoint. Assume the speeds are normally…

A:

Q: A study indicates that 18- to 24-year olds spend a mean of 145 minutes watching video on their…

A: given data normal distributionμ = 145 minutesσ = 20 minutes

Q: Assume that the square footage of a residential house in the US is normally distributed with a…

A: Let X be the random variable from normal distribution with mean (μ) = 1000 and standard deviation…

Q: he lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A:

Q: The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A: Refer Standard normal table/Z-table to find the probability of z=2.80.

Q: The amount of milk sold each day by a grocery store varies according to the Normal distribution with…

A:

Q: Private nonprofit four-year colleges charge, on average, $26,186 per year in tuition and fees. The…

A: a. The random variable X be the cost for a randomly selected college which follows normal…

Q: One thousand people compete in an oyster-eating contest. Their scores (number of oysters eaten) are…

A: According to the given information, we haveThe mean of the distribution is The standard deviation of…

Q: hotel in a European city follows a normal distribution with a mean of 170 euros and a standard…

A:

Q: The mean monthly household electric bill in a certain community is $110. Assume the amounts are…

A: Suppose the random variable x defines the monthly household electric bill in a certain community.

Q: A study of the time spent shopping in a supermarket for 20 specific items showed an approximately…

A: Provided information is, a study of the time spent shopping in a supermarket for 20 specific items…

Q: The weight of football players is normally distributed with a mean of 220 pounds and a standard…

A: Given X is normal Distributed with mean µ = 220.0 and standard deviation σ = 25.0 now will using…

Q: The average age of vehicles registered in the United States is 96 months. Assume the population is…

A: Given that: X is normally Distributed with mean µ = 96.0 and standard deviation σ = 15.0 By using…

Q: The number of pizzas consumed per month by university students is normally distributed with a mean…

A:

Q: The weight of luggage carried onto a plane by passengers is normally distributed with a mean of 30…

A: Let X be the The weight of luggage carried onto a plane by passengers Mean=30, standard deviations…

Q: Water use per person is reported as 70 gallons per week, with a standard deviation of 10 gallons If…

A: Given that, μ=70,σ=10,n=25 (a) The probability of their sample mean being greater than 75 gallons…

Q: Body temperatures of healthy adults have a bell shaped distribution with a mean of 98.20℉ and a…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: The length of time it takes a college student to find a parking spot in the library parking lot…

A: Mean(μ)=7.0 standard deviation(σ)=1

Q: The lengths of pregnancies are normally distributed with a mean of 266 days and a standard…

A:

Q: The number of automobile accidents per week in Toronto is normally distributed with a mean of 16.3…

A:

Q: The annual per capita consumption of bottled water was 30.5 gallons. Assume that the per capita…

A: We have given that.   X~N( μ , ?^2 )   μ =30.5 , ? =13   Z-score =( x - μ )/?   NOTE:- According to…

Q: he senior high school department of KsKC University found out that the final grade of 500 grade 12…

A: Distribution curve of normal distribution has bell shape which is symmetric about the mean. A normal…

Q: a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is…

A: Given Data Population Mean,μ = 269 Population Standard Deviation,σ = 15

Q: The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A: Given,mean(μ)=267standard deviation(σ)=15

Q: Five hundred youths participated in a national sport competition. Their heights averaged 110cm with…

A: Given that

Q: The number of pizzas consumed per month by university students is normally distributed with a mean…

A: Given Information:Mean, μ=7Standard Deviation, σ=3

Q: The number of pizzas consumed per month by university students is normally distributed with a mean…

A: The number of pizzas consumed per month by university students is normally distributed with a mean…

Q: The weight of 2,000 students are normally distributed with the mean of 46kg and standard deviation…

A:

Q: Compute the studentized range value for conducting Tukey's Honest Significant Difference (HSD) test…

A: Level of significance =0.001Number of treatments = 3Sample size of the three samples = 6

Q: The annual per capita consumption of bottled water was 33.5 gallons. Assume that the per capita…

A: "Since you have posted a question with multiple subparts we will provide solutions only to the first…

Q: 国 The annual per capita consumption of bottled water was 30.5 gallons. Assume that the per capita…

A: Given Data : Population Mean,μ = 30.5 Population Standard Deviation,σ = 13

Q: afactory manufactures car tyres that have an average lifetime of 45261 kilometers with a standard…

A: Given: X~N(μ,σ)μ=45261Kmσ=2761Km

Q: The amount spent by a customer of Tasty Treat ltd has a normal distribution with a mean of 7.25…

A: GivenMean(μ)=7.25standard deviation(σ)=2.3

Q: 4. The delivery time for all food orders at a fast food restaurant have a mean of 6.7 minutes and a…

A: Let X denote the delivery time for food orders then we are given   μx=6.7 & σx=2.1 &…

Q: The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A: The normal distribution is the bell shaped distribution which is centred at the mean. This is also…

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.