You have just taken ownership of a pizza shop. The previous owner told you that you would save money if you bought the mozzarella cheese in a 4.5 pound slab on the average. Each time you purchase a slab of cheese, you weigh it to ensure that you are receiving a standard deviation of 72 ounces of cheese. The results of 7 random measurements are 70, 69, 73, 68, 71, 69 and 71 ounces. Are these differences due to chance or is the distributor giving you less cheese than you deserve? State the hypotheses. Calculate the test statistic. Would the null hypothesis be rejected at the 10% level? The 5% level? The 1% leve

Q: If the mean body tempe tire of a bird is 75 degrees with a standard deviation of 4 degrees, which is…

A: Given information- Population mean, μ = 75 degrees Population standard deviation, σ = 4 degrees Let…

Q: Jason took his Siberian Husky dog to the veterinarian. The dog was put on a scale and found to weigh…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: CNNBC recently reported that the mean annual cost of auto insurance is $962. Assume the standard…

A: Given information: The mean annual cost of auto insurance is $962. The standard deviation is $190.…

Q: A quiz consists of 20 true or false questions. If the student guesses on each question what is the…

A: Solution: Let X be the number of correct answers and n be the number of questions. Since the…

Q: According to the Department of Education, 60% of college students enjoy taking Statistics. Suppose…

A: Let  X be the number of students who enjoy taking Statistics in a sample of 200. Given n = 200…

Q: You may need to use the appropriate appendix table or technology to answer this question. A…

A:

Q: Daang Kalikasan is one of Pangasinan's newest tourist spot. It was thought out of because of the…

A: Given information- Population mean, µ = 4300 acres per year Population standard deviation, σ = 750…

Q: take random sample of 200 people from salinas and find that their average income is $48000 per year…

A: According to the provided information, Mean (μ) = 48000 Standard Deviation (σ) = 9000 Sample Size…

Q: Management at a video game store wants to gain a better understanding of their customers. In order…

A:

Q: 95% of 80 freshman history students scored between 70% and 80% on a take home quiz. If this data is…

A: Given,  n=80 α= (1-0.95) =0.05 Let X denote the score of freshmen. As per t-distribution table, the…

Q: A nursing home has 2000 patients. You sample 170 patients. Can you use the infinite standard…

A:

Q: Seven students on an intramural team weigh 179 lb, 172 lb, 174 lb, 185 lb, 162 Ib, 181 Ib and 193…

A: According to the provided information, the sample weights are 179, 172, 174, 185, 162, 181, 193

Q: Find the mean, variance, and standard deviation for the number of heads when 13 coins are tossed.…

A: Given :  This is a binomial experiment n = 13 p is the probability of success that means getting…

Q: Imagine my business owns two cars and I have to fill the tanks of both cars every week.  One car,…

A:

Q: An article in a local town newspaper discusses the results of state test scores in their town. The…

A: Answer:-

Q: An article in a local town newspaper discusses the results of state test scores in their town. The…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: A car salesperson offers you a car at the price of $22,895. You look up the mean sales price for…

A: We have given that the random variable X that is sales price. Here, X = 22895 Mean = 21900 and…

Q: You are are running some stats on final game scores during March Madness games. The 16 teams that…

A: given data μ = 70.8σ = 12.4x = 80z = ?

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: Do political science classes require the same amount of writing as history classes? The 50 randomly…

A: Given that, Sample size of political science classes n1=50 Sample size of history classes n2=40…

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200 lbs and the…

A: From the above given data the following solution is provided below:

Q: Fresh Catch Restaurants serves seafood. One of their best-sellers is lobster. The chef determined…

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Q: Here are some of the Final Exam scores from last semester's class: 81, 77, 90, 93, 99, 88, 85, 70,…

A: Given n=12

Q: The incubation time for Rhode Island Red chicks is normally distributed with mean of 30 days and…

A: x =  incubation time for the chicks.

Q: Find the first quartile for the average textbook price for this sample size. $Incorrect (round to…

A: 1. Let x¯ be the average textbook price for this sample size. The sample size is 49, mean is $164,…

Q: In a medical study, a researcher wishes to select respondents in the middle of 45% of the population…

A: Given, In a medical study, a researcher wishes to select respondents in the middle of 45% of the…

Q: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

A: A baseball team has 31 players, 8 of whom bat left-handed. Suppose that the manager of this team is…

Q: The average price of a college math textbook is $151 and the standard deviation is $26. Suppose that…

A: Given Data: Let X represent the random variable X~ Normal (151, 262)   n=42 Therefore, X¯~ Normal…

Q: The population average GPA for fall students is 3.00. You think the average GPA for Psychology…

A: The test statistic for single mean is, t=x¯-μ0snwherex¯=sample means=sample standard…

Q: High school girls average 80 text messages daily. Assume the population standard deviation is 15…

A: Given information:

Q: Pharmacist lilly  is researching how long the active ingredient in a particular drug is measured in…

A: 1.   Denote μ as the population mean time of the drug is active in the liver of people after oral…

Q: A particular fruit's weights are normally distributed, with a mean of 625 grams and a standard…

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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: Need help with this. Only given one attempt so please be certain of your work.  Last year, the…

A: Given: Population meanμ=375Sample meanx¯=396Sample standard deviation(s)=70Sample size(n)=36

Q: A normal population had a mean of 70 and a standard deviation of 12. You select a random sample of…

A: μ = 70σ = 12n = 9P(x¯>73) = ?

Q: The salary for workers at a company are normally distributed with a mean of $60,000 and a standard…

A:

Q: A list of the top twenty restaurants in Chicago was released. Four of the restaurants specialize in…

A: Given that  Total restaurants=20 Seafood restaurants=4 p=4/20=1/5=0.20 , q=1-p=1-0.20=0.80 5 of the…

Q: You are a consumer advocate. A particular brand of tires state that they last for 50,000 miles…

A: Given that, You are a consumer advocate.  A particular brand of tires state that they last for…