In a burger shop, a sample of 11 days, was taken to study the daily sales, It was found that the mean daily sales are (m) with a standard deviation is (d). The confidence interval for the population mean is computed, the upper confidence limit is 49, and the lower confidence limit is 13 Calculate the value of m? (Round answer to two decimal places ex. 2.09)

Q: In a sample of 55 electric motors, the average efficiency (in percent) was 85 and the standard…

A: From the provided information, Sample size (n) = 55 Sample mean (x̅) = 85 Standard deviation (s) = 2…

Q: On the Standford-Binet test, the mean IQ is 100. A class of 21 kindergarten pupils were tested with…

A: Given Mean(x)=94standard deviation(s)=9.12sample size(n)=21confidence interval = 90%

Q: results in a mean daily leisure time of 4.09 hours, with a standard deviation of 1.53 hours.…

A:

Q: Suppose that the standard deviation of the tube life for a particular brand of TV picture tube is…

A:

Q: Based on a sample of 50 textbooks at the store, you find an average of 90.52 and a standard…

A:

Q: In the 2018 General Social Survey, a random sample of 1666 adults in the U.S. was asked how old they…

A:

Q: he daily wage of an industry is normally distributed with a mean of 150 pesos. In a random sample of…

A:

Q: From a random sample of 54 donors, it was determined their mean amount given to charity was x̄=$70.5…

A:

Q: Based on a sample of 180 textbooks at the store, you find an average of 106.02 and a standard…

A: From the provided information, Sample size (n) = 180 Sample mean (x̄) = 106.02 Sample standard…

Q: A survey conducted by the British Columbia Automobile Association (BCAA) showed that a family of…

A:

Q: A postmix beverage machine is adjusted to release a certain amount of syrup into a chambe where it…

A: Formula : CI=point estimate ± ME

Q: A random sample of 95 automobiles traveling on an interstate showed an average speed of 60 mph and a…

A: From the provided information, Sample size (n) = 95 Sample mean (x̄) = 60 mph Sample standard…

Q: The researcher recorded the amount of time each bird spent in the plain chamber during a 60-minute…

A: From the provided information, Sample size (n) = 14 Sample mean (M) = 50.83 Sum of square (SS) =…

Q: The length, in words, of the essays written for a contest are normally distributed with an unknown…

A:

Q: A sample of n=16 scores has a mean of M=58 with s=8. Using the sample, what is the 95% confidence…

A:

Q: A simple random sample with n = 54 provided a sample mean of 22.5 and a sample standard deviation of…

A: According to the provided information, The 90% confidence interval can be calculated as:…

Q: In a burger shop, a sample of 78 days , was taken to study the daily sales, It was found that the…

A: GivenUpper confidence limit = 47Lower confidence limit = 13sample size(n)=78

Q: You are the manager of a local cinema, a average customer spends on the concess customers, and you…

A:

Q: The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal…

A: It is given that:

Q: A teacher takes a random sample of 18 students and asks how long their commute to campus is, in…

A: Given,sample size(n)=18sample mean(x¯)=19.3standard deviation(S)=1.2degrees of…

Q: The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal…

A: Solution: From the given information, x-bar=0.2839 mm, σ=0.000610 and n=55. The confidence level is…

Q: A study of 28 female Sumatran elephants provided a 96% confidence t-interval for the mean shoulder…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: Based on a sample of 80 textbooks at the store, you find an average of 58.24 and a standard…

A: The best estimate which is given for a population parameter is known as "point estimate". As from…

Q: (a) The distribution of total body protein in healthy adult men is approximately Normal, with…

A: From the provided information, Population standard deviation (σ) = 0.1 Kg Sample size (n) = 58…

Q: a random sample of eleven people, the mean commute time to work was 27.8 minutes and the standard…

A:

Q: A national random sample of 654 women aged 20–29 years was taken, and each woman's body mass index…

A: Given  n=654, s=7.42, Xbar=26.8 Since n is large so we use z critical value instead of t critical We…

Q: in a nigh school, the average class size of nine math class was 26.1 with a standard deviation of…

A: We have given that,  Sample mean (x̄) = 26.1, standard deviation (s) = 6.21 and sample size (n) = 9…

Q: Noah wants to advertisenl how many chocolate chip cookies are in each Big Chip cookie at his bakery.…

A: Given number of chocolate chips per cookie in sample follow normal distribution.Sample size = n =…

Q: A beverage machine is adjusted to release a certain amount of syrup into a chamber where it is mixe…

A:

Q: Suppose that you go to a NJ lake to grab water samples to test algal concentrations using a cell…

A: Given information- Population standard deviation, σ = 250 ml Confidence interval = 0.95 Significance…

Q: . Data from a sample of 576 people in a city was used to estimate the mean monthly bill paid by city…

A: We associate with the interval estimate is called a confidence interval. This probability indicates…

Q: reported that the average American eats out at a restaurant 5.9 times per week. A random sample of…

A: Given that ; u = 5.9 n = 40 Sample mean = 5.1 S = 1.7 At 95 % confidence interval.  By using the one…

Q: The researcher recorded the amount of time each bird spent in the plain chamber during a 60-minute…

A:

Q: In a sample of n= 19 lichen specimens, the researchers found the mean and standard deviation of the…

A:

Q: A group of scientists studied the adhesion of various biofilms to solid surfaces for possible use in…

A: Population standard deviation is 0.66. The z-critical value for 90% confidence interval is 1.645…

Q: The daily wage of a particular industry is normally distributed with a mean of 150 pesos. In a…

A: Given: A 90% confidence interval about the true mean daily wage of the workers is constructed as…

Q: In a random sample of 38 families, the average weekly food expense was $95.60 with a standard…

A: Obtain the 99% confidence interval for the average weekly food expense. The 99% confidence interval…

Q: Thirty randomly selected students took the calculus final. If the sample mean score was 81 and the…

A: Given,   Sample size = 30 Sample mean = 81 Sample standard deviation = 11.7   Since the population…

Q: A report on weekly grocery expenditures of Morehead State University claimed that the mean…

A: A report on weekly grocery expenditures of Morehead State University claimed that the mean…

Q: The average price of a random sample of 12 bottles of diet salad dressing taken from different…

A:

Q: Q4.2) Construct a 95% confidence interval for the true average monthly salary earned by all…

A: Given  number of employees   =  19 sample mean                 =  18500 sample standard dev      =…

Q: A farmer finds the mean mass for a random sample of 200 eggs laid by his hens to be 57.2 grams. If…

A:

Q: Based on a sample of 80 textbooks at the store, you find an average of 64.66 and a standard…

A: Gievn that mean,  x bar = 64.66  And standard deviation, s = 17 Point estimate of mu = x bar = 64.66…

Q: The researcher recorded the amount of time each bird spent in the plain chamber during a 60-minute…

A: Solution: Given information: n= 14 Sample size  M = 51.38 Sample mean  SS= 3898 sum of square s =…

Q: Provide an appropriate response. 1) How much money does the average professional hockey fan spend on…

A: Given data ,x=15 $S=2.65 $n=10Degree of freedom=n-1=10-1=9

Q: The determination of copper in a sea water sample gave a mean value of 77.81 µg/L and a standard…

A: Given, x¯=77.81, ss=1.74, tα2=1.96 We know that RSD=tα2ssn⇒0.017=1.96*1.74n⇒n=40245

Q: The Ball Corporation's beverage can manufacturing plant in Fort Atkinson, Wisconsin, uses a metal…

A:

Q: In a sample of 36 steel wires the sample mean (average) breaking strength was found to be 50 kN.…

A: Solution

Q: In a burger shop, a sample of 46 days, was taken to study the daly sales, t was found that the mean…

A: Given info: The upper confidence limit is 38 and the lower confidence limit is 15.