Crispy Biscuit Manufacturers label the calorie content of 400 cal per 250 gram package. The Consumer Foundation believes that the actual calorie content is above 400 cal per pack. The Consumer Foundation took a sample of 100 packs of crispy biscuits and found that the average calorie was 406 cal with a standard deviation of 25 cal. d. By using a 1% alpha, would you support the Consumer Foundation hypothesis?

Q: A population has mean 49 and standard deviation 5. What is the data value that has a z-score of 2?…

A:

Q: A student took measurements of the mass of an object using the same balance. The data obtained were…

A: Here Given  data of mass of objects using the same balance. Data are  1.383 g, 1,387 g, 1.389 g and…

Q: For a sample of 300 students, you find that the mean GPA is 3.35 with a standard deviation of .21.…

A: Solution: From the given information, Standard deviation is 0.21 and n=300.

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A: Given that  The alcohol level in the beer to be between 4.5% and 5.5% . Lower specification limit…

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A: given data normal distributionμ = 100σ = 15use empirical rule to answer . What range of scores…

Q: I. Cadmium, a heavy metal, is toxic to animals. Mushrooms, however, can absorb and accumulate…

A: The question is about hypothesis testing.Given :To find :Check the normality assumption and test the…

Q: You measure the height of 10 people and come up with an average of 70 inches and a standard…

A: x=70s=4n=10 The t scores for 68 inches, t=68-xsn=68-70410=-1.581139

Q: A national achievement test is administered annually to 3rd graders. The test has a mean score of…

A: The formula of Z score is ,  z = x - μσ

Q: A national secondary achievement test is administered annually to high school students. The test…

A:

Q: Keeping car tires inflated is essential to safe driving. For one type of car tire, the tire pressure…

A:

Q: The weights of Ajax salmon are approximately normally distributed with a mean of 34 pounds and a…

A: GivenMean(x¯)=34standard deviation(σ)=8

Q: The manufacturer claims that your new car gets 27 mpg on the highway. You suspect that the mpg is…

A: Since sample size is large but population sd is unknown , we will be utilising t distribution for…

Q: The scores from a state standardized test have a​ bell-shaped distribution with a mean of 100 and a…

A: By using empirical rule we know…

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A:

Q: The Mayo clinic states that healthy cholesterol levels are below 200 mg/dL. You sample 64…

A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: the mean iq for the u.s. is 100 with a standard deviation of 15. a troy statistics professor thinks…

A: The objective of this question is to test the hypothesis that the mean IQ of Troy students is…

Q: Given a scenario where n=100 and p=0.8, find the standard deviation.

A: In this case the sample size is n = 100 and p = 0.8.

Q: To see if young men ages 8-17 years spend a different amount than the national average of $24.44 per…

A: Givensample size(n)=35standard deviation(s)=3.70Mean(x)=23.37α=0.05

Q: The mean height of a population of men is 70.8 inches and the standard deviation is 3.2 inches. What…

A:

Q: The E&M 200 students took the exam, and the distribution of this data was bell- shaped. The average…

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Q: The mean Math ACT score was 20.5, with a standard deviation of 5.5. Sarah scored a 26 on the Math…

A:

Q: Suppose you buy a new car whose advertised mileage is 20 miles per gallon​ (mpg). After driving your…

A: Given,mean(μ)=20standard deviation(σ)=1.02

Q: Heights of women are normally distributed with mean 63.7 inches and standard deviation 2.47 inches.…

A: a. The standard normal variable Z is defined as, Z = (X – µ)/σ, where µ is the mean of the random…

Q: otal cholesterol in children aged 10 to 15 years of age is assume to follow a normal distribution…

A:

Q: A large chemistry course took their final exam. The mean was 75 with a standard deviation of 8. c.…

A: From the provided information, Mean (µ) = 75 Standard deviation (σ) = 8 Let X be a random variable…

Q: a) Determine the 3-sigma x -chart control limits Upper Control Limit (UCL- ) = ____ units (round…

A: Statistical process control is used to develop, monitor and finally control products as well as…

Q: The mean life of a tire is 30,000 km. The standard deviation is 2000 km. Then, 95% of all tires will…

A: We have to find raw scores for given data.

Q: The weights of six-week-old poults (juvenile turkeys) are normally distributed with mean u = 9.1…

A:

Q: A farm hatches chicken eggs in batches of 15 and there is a 3% infertile rate. Find the standard…

A: Obtain the standard deviation for the number of infertile eggs per batch.   The standard deviation…

Q: A fruit grower wants to test a new spray that a manufacturer claims will reduce the loss due to…

A:

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.