A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that move along a filling line. machine that dispenses toppings is working properly when 8 grams are dispensed. The standard deviation of the process is 0 gram. Suppose that the average amount dispensed in a particular sample of 25 bottles is 7.982 grams. At the 0.05 level of significar using the critical value approach to hypothesis testing, is there evidence that the average amount dispensed is less than 8 gr.

Q: A manufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500…

A: Given information- Sample mean, x-bar = 497 Sample standard deviation (s) = 10 Population mean, μ =…

Q: A bottler of coconut water found that adults in the US consume, on average, 75 servings of coconut…

A:

Q: Suppose the average size of a new house built in a certain county in 2006 was 2,276 square feet. A…

A: From the provided information, level of significance (α) = 0.10 Sample size (n) = 30 Sample mean…

Q: The student decides to conduct a hypothesis test to see if the standard deviation of the ICS issued…

A: xbar = 24 s = 3 mu = 25

Q: In the past, a company used to produce 40 tons of a certain food per day on average. Now, using a…

A: Given: n= 25.0 ,x̄= 45.0 ,s= 5.0 µ= 40.0

Q: The National Weather Service says that the mean daily high temperature for October in a large…

A: Given that  Claim  : Mean is actually lower than 570F . Sample size(n) = 30  Sample mean = 550F…

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A:

Q: A local utility company claims that the monthly electricity bills of its customers are among the…

A: Given data: Significance level  = 0.1 Claim: An energy analyst believes that the average monthly…

Q: A consumer products company wishes to test at the 0.05 significance level whether its newly…

A: Given that : μ = 439σ = 25n = 57

Q: tire company measures the tread on newly-produced tires and finds that they are normally distributed…

A:

Q: A random sample of 50 bags of white Cheddar popcorn weighed, on average, 5.35 ounces with a standard…

A:

Q: An auto manufacturer claims that its new 4-cylinder Hybrid auto with manual shift averages 50 mpg…

A: Computation of test statistic value: The population standard deviation is unknown. Thus, in order to…

Q: A manufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500…

A: In hypothesis testing, type I error is the rejection of a true null hypothesis, type II error is the…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A:

Q: In a PH modeling agency, a researcher wishes to see if the average height of female models is really…

A: Given that

Q: er of Christmas light bulb claims that the average life of its product will exceed 40 hours. A…

A: Given: Sample mean=x¯=45Sample size=n=56Population standard deviation=σ=5Population mean=μ=40 The…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A: Note:- All the given answers are correct. I am also getting the same answer Given data Piston…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A: Given that  The hypothesis is

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A:

Q: The cashier of a fast-food restaurant claims that the average amount spent by customers for dinner…

A: Given: n = 50 X = 122.50 σ = 6.50 α = 0.05 Formula Used: Z = X-μσn

Q: The piston diameter of a certain hand pump is 0.6 inch. The manager determines that the diameters…

A:

Q: The piston diameter of a certain hand pump is 0.6 inch. The manager determines that the diameters…

A: Given data: Sample size = 24 Significance level = 0.10 To calculate p value

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A:

Q: In a certain year, the average annual family income in the National Capital Region was P310,860 with…

A: Given : In a certain year, the average annual family income in the National Capital Region was…

Q: A fashion industry analyst wants to prove that models featuring Liz laiborne clothing earn on…

A: Given: An analyst claims that model featuring Liz Claiborne clothing earn on average more than…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A: Given The data is as follows: Pop mean, μ=0.4Pop sd, σ=0.007Sample size, n=21Sample sd,…

Q: From a research survey, it was found that a random sample of 18 elementary graduates of an exclusive…

A:

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A:

Q: The piston diameter of a certain hand pump is 0.7 inch. The manager determines that the diameters…

A: From the given information we conduct chi squared test.

Q: A manufacturer claims that the mean breaking strength of safety belt for air passengers produced in…

A: when σ(unknown) but n>30,  then we use Z statisticstatistic=Z=X¯-μSnHypothesisHo:μ=1275  vs…

Q: An online food delivery service in metro manila claims that the delivery time is not greater than 30…

A: Given :   Population SD (σ) = 3 Sample size (n) = 31 Sample mean (X¯) = 40 Level of significance (α)…

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A:

Q: The piston diameter of a certain hand pump is 0.6 inch. The manager determines that the diameters…

A: We want to find the null hypothesis and alternate hypothesis

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A: A hypothesis testing can be used to draw conclusions about the population parameters. When the…

Q: A soft-drink vending machine is set to dispense 6.0 ounces per cup. If the machine is tested 36…

A: Given that, A soft-drink vending machine is set to dispense 6.0 ounces per cup. If the machine is…

Q: The piston diameter of a certain hand pump is 0.6 inch. The manager determines that the diameters…

A: From the provided information, The sample standard deviation (s) = 0.0026 Sample size (n) = 24 Level…

Q: A manufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500…

A: The resulting p-value is 0.1111; thus, the null hypothesis is not rejected. The consumer group…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A:

Q: A manufacturer of rechargeable laptop batteries markets its batteries as having, on average, 500…

A: The resulting p-value is 0.1111; thus, the null hypothesis is not rejected. The consumer group…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A: Test for Population Standard Deviation Chi-Square Test : Chi-Square Test is used to test the…

Q: The piston diameter of a certain hand pump is 0.4 inch. The manager determines that the diameters…

A:

Q: A car manufacturer claims that a new model QX has an average fuel efficiency µ =35 miles per gallon…

A: The provided information is:

Q: In a law office, the average number of billed hours per day was 150 last year. In the first 85 days…

A: It is basically a comparison of the statistical measures of the data with one sample(population) or…

Q: A manufacturer of chocolate topping uses machines to dispense liquid ingredients into bottles that…

A: One sample z -test: The one -sample z -test is used to determine whether the mean of sample differs…

Q: It is claimed that a random sample of 100 tyres with a mean life of 15269 kms is drawn from a…

A:

Q: In a certain year, the average annual family income in the National Capital Region was P310,860 with…

A: Given information Population mean µ = P310,860 Standard deviation σ = P176,870 Sample size = 320…

Q: A simple random sample of 26 filtered​ 100-mm cigarettes is obtained from a normally distributed​…

A:

Q: A bottler of coconut water found that adults in the US consume, on average, 75 servings of coconut…

A:

Q: A manufacturer claims that a particular automobile will get at least 50 miles per gallon on the…

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

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.