Pierre’s sells blueberry muffins that have an average of 226 calories with a standard deviation of...
Pierre’s sells blueberry muffins that have an average of 226 calories with a standard deviation of 15 calories, and chocolate chip muffins that have an average of 243 calories with a standard deviation of 22 calories. Assume the calorie amounts for both muffins follow Normal distributions.
a) If we were to randomly select a blueberry muffin, what is the probability that it would contain more than 240 calories?
Provide the following:
Z-score:
Value from Standard Normal table:
Final answer:
Homework Answers
Add Answer to:
Pierre’s sells blueberry muffins that have an average of
226 calories with a standard deviation of...
A random sample of 22 brand-name chocolate energy bars has, on average, 230 calories per bar....
A random sample of 22 brand-name chocolate energy bars has, on average, 230 calories per bar. The standard deviation of the calorie content of this brand of energy bars is 17 calories. Calculate the margin of error for a 98% confidence interval for the true average calorie content of this brand of chocolate energy bars. Suppose the distribution of caloric content is approximately normal. Important note: Use the critical value rounded to 3 decimal places and your answer to 2...
If the average amount of calories eaten per day is 2000, with a standard deviation of...
If the average amount of calories eaten per day is 2000, with a standard deviation of 300, what would someone’s z-score be if they ate 3000 calories per day?
There are 60 calories on average in a Tootsie Roll Pop with a standard deviation of...
There are 60 calories on average in a Tootsie Roll Pop with a standard deviation of 2 calories. Assume that the calories are normally distributed. What is the probability that a randomly selected Tootsie Roll Pop has less than 55 calories? (round to four decimals) What is the probability that the mean number of calories of a sample of 12 Tootsie Roll Pops have less than 55 calories? (round to four decimals)
If SAT scores follow normal distribution with average of 500 and a standard deviation of 50,...
If SAT scores follow normal distribution with average of 500 and a standard deviation of 50, then: What is the probability that a score of randomly selected student will be between 400 and 600?
Question 1 The average math SAT score is 511with a standard deviation of 119. A particular...
Question 1 The average math SAT score is 511with a standard deviation of 119. A particular high school claims that its students have unusually high math SAT scores. A random sample of 50 students from this school was selected, and the mean math SAT score was 555. Is the high school justified in its claim? Explain. ▼ Pick one No Yes because the z-score (what is the z score) (?) is ▼ pick one not unusual unusual since it ▼...
1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What ...
all questions. Do not round
answers
1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
The average time to run the 5K fun run is 22 minutes and the standard deviation...
The average time to run the 5K fun run is 22 minutes and the standard deviation is 2.3 minutes. 47 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X-NI b. What is the distribution of æ? - NCI c. What is the distribution of «? *-N d. If one randomly selected runner is timed, find the probability...
A local brewery sells their beer in 330 ml bottles. On average the beer is filled...
A local brewery sells their beer in 330 ml bottles. On average the beer is filled with 328.2 ml with a standard deviation of 0.7 ml. 1. Since it is possible to under-fill the bottle but impossible to fill the bottle with more than 330 ml, the distribution is: Normal Symmetrical Skewed Left Skewed Right 2. Use this information to answer the following questions, and round your answers to four decimal places. a. What is the z-score for a six-pack...
For a certain law school, the entering students have an average LSAT score of about 700...
For a certain law school, the entering students have an average LSAT score of about 700 with a standard deviation of about 40. The smoothed density histogram of the LSAT scores appears to follow a normal distribution. Sketch a smoothed density histogram (a bell-shaped curve) of the distributions for the LSAT scores. (For this problem, draw this on your own paper. You will not need to submit this graph.) Because this distribution is approximately normal, the mean is equal to...
Scores on the SAT mathematics section have a normal distribution with mean 4-500 and standard deviation...
Scores on the SAT mathematics section have a normal distribution with mean 4-500 and standard deviation o=100. a. What proportion of students score above a 550 on the SAT mathematics section? Round your answer to 4 decimal places. b. Suppose that you choose a simple random sample of 16 students who took the SAT mathematics section and find the sample mean x of their scores. Which of the following best describes what you would expect? The sample mean will be...
There are 60 calories on average in a Tootsie Roll Pop with a standard deviation of 2 calories. Assume that the calories are normally distributed. What is the probability that a randomly selected Tootsie Roll Pop has less than 55 calories? (round to four decimals) What is the probability that the mean number of calories of a sample of 12 Tootsie Roll Pops have less than 55 calories? (round to four decimals)
all questions. Do not round
answers
1. IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. a. What percentage of scores is between 55 and i 15? b. In a group of 20,000 randomly selected individuals, how many have an IQ score of 130 or more? 2. A Honda Civic has its gas mileage (in miles per gallon, or mpg) normally distributed, with a mean of 33 mpg and a standard deviation of...
The average time to run the 5K fun run is 22 minutes and the standard deviation is 2.3 minutes. 47 runners are randomly selected to run the 5K fun run. Round all answers to 4 decimal places where possible and assume a normal distribution. a. What is the distribution of X? X-NI b. What is the distribution of æ? - NCI c. What is the distribution of «? *-N d. If one randomly selected runner is timed, find the probability...
Scores on the SAT mathematics section have a normal distribution with mean 4-500 and standard deviation o=100. a. What proportion of students score above a 550 on the SAT mathematics section? Round your answer to 4 decimal places. b. Suppose that you choose a simple random sample of 16 students who took the SAT mathematics section and find the sample mean x of their scores. Which of the following best describes what you would expect? The sample mean will be...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 11 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 11 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 11 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 11 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 11 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 11 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 11 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 11 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 11 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 11 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 11 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 11 months ago