Dr. Christina Cuttleman, a nutritionist, claims that the average number of calories in a serving of popcorn

Fantastic news! We've Found the answer you've been seeking!

Question:

Dr. Christina Cuttleman, a nutritionist, claims that the average number of calories in a serving of popcorn is 75 with a standard deviation of 7. A sample of 50 servings of popcorn was found to have an average of 78 calories.

a. Should z test or t test be used?

b. Check Dr. Cuttleman's claim at a = 0.05.

Related Book For answer-question

Elementary Statistics A step by step approach

ISBN: 978-0073386102

8th edition

Authors: Allan Bluman

See More Books

Posted Date: Dec 17, 2018 12:58 AM

See More Questions

The average number of calories in a 1.5-ounce chocolate bar is 225. Suppose that the distribution of calories is approximately normal with = 10 . Find the probability that a randomly selected...
A state executive claims that the average number of acres in western Pennsylvania state parks is less than 2000 acres. A random sample of five parks is selected, and the number of acres is shown. At ...
A bank finds that the average number of people waiting in line during lunch hour is 10. On average, during this period, 2 people per minute leave the bank after receiving service. On average, how...
Assume that everything is the same for the project except the marginal tax rate is now 35%. What is the new NPV? Assume that the cost per unit can be decreased to $12 by using cheaper raw materials...
Judy Knight founded the Neoglobe Company over 30 years ago. Although she has relied heavily on advice from other members of management, Knight has made all of the important decisions for the company....
Cryptocurrencies are often seen as an investment opportunity, particularly in countries susceptible to deprecating and unstable national currencies. Oil-rich Nigeria should be one of Africa's...
Produce a balanced argument that looks at the differences between qualitative and quantitative measures of sales performance.
Fidelity Audio Inc. manufactures electronic stereo equipment. The manufacturing process includes printed circuit (PC) board assembly, final assembly, testing, and shipping. In the PC board assembly...
In the figure, two blocks are connected over a pulley. The mass of block A is 5.10 kg and the coefficient of kinetic friction between A and the incline is 0.220. Angle 0 of the incline is 45.0. Block...
Skulas, Inc., manufactures and sells snowboards. Skulas manufactures a single model, the Pipex. In the summer of 2014, Skulas management accountant gathered the following data to prepare budgets for...
Which of the following refers to marketing channel? a. Integrated Marketing Communication b. Retailing c. MarketingMyopia d. Distribution
What are the four sources of law in the United States?
Computer chips often contain surface imperfections. For a certain type of computer chip, the probability mass function of the number of defects $X$ is presented in the following table. a. Find...
A6.1 On 1 May the Sea Traders Company purchased 200 spare parts for fishing boats, costing $ 20$ each. On 5 May, 60 of these spare parts were sold to a customer at a price of $ 25$ each. The...
To estimate the concentration of particles in a certain suspension, a chemist withdraws $3 \mathrm{~mL}$ of the suspension and counts 48 particles. Estimate the concentration in particles per...
If some shareholders complained that you and your co-managers have been spending too little or too much on corporate social responsibility, what would you tell them?
Article "the future of immigrant children " by Ron Haskins and Marta Tienda summarize a brief description on the policy brief
[a] Two foam blocks, each with a charge of 19 micro coulombs (1 C = 10-6 C), are both held in place 19 cm apart in the east-west direction. A foam ball with a charge 49 C is placed 55 cm north of the...
On a statement of cash flows for 2025, using the direct method, what would be the cash payments for operating expenses? Culver Company reported operating expenses of $370000 for 2025. The following...
P ( 1.23 < z < 0) Find the probabilities for each, using the standard normal distribution.
If the average number of textbooks in professors offices is 16, the standard deviation is 5, and the average age of the professors is 43, with a standard deviation of 8, which data set is more...
State which graph (Pareto chart, time series graph, or pie graph) would most appropriately represent the given situation. a. The number of students enrolled at a local college for each year during...
Calculate the CGT payable in relation to each of the following disposals, assuming in each case that the annual exemption is fully utilised against other gains, that there are no allowable losses and...
Mick Stone disposed of the following assets during tax year 2023-24: (1) On 19 May 2023, Mick sold a freehold warehouse for 522,000. This warehouse was purchased on 6 August 2011 for 258,000, and was...
In October 2012, Matthew bought a piece of rare porcelain for 10,000. The porcelain was damaged in early 2019 and in February of that year Matthew spent 3,850 on restoration work. In July 2019,...

Dr. Christina Cuttleman, a nutritionist, claims that the average number of calories in a serving of popcorn

Question:

Expert Answer:

Test m 75 with normal dist n Hypothesis test H 0 m 75 Nu... View the full answer

Elementary Statistics A step by step approach

Students also viewed these mathematics questions