If people drink between 0, 1, 2 or 3 cups of coffee per day, where the...
If people drink between 0, 1, 2 or 3 cups of coffee per day, where the number of cups per day are equally likely? What is the expected number of cups that people drink per day?
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If people drink between 0, 1, 2 or 3 cups of coffee per day,
where the...
fee? 5) Amon g coffee drinkers, men drink a mean of 3.4 cups per day with...
fee? 5) Amon g coffee drinkers, men drink a mean of 3.4 cups per day with a standard deviation of 0.8 cup. Assum distribution. e the number of cups per day follows a normal a. What proportion drinks 2 cups per day or more? b. What proportion drinks no more than 4 cups per day?
A sample of 2,500 people was asked how many cups of coffee they drink in the...
A sample of 2,500 people was asked how many cups of coffee they drink in the morning. You are given the following sample information. Cups of Coffee Frequency 800 200 2 900 600 Total: 2,500 The expected value is 1.52. Find the variance of the number of cups of coffee. O 0.76 0.87 1.17 1.37
The amount of coffee that people drink per day is normally distributed with a mean of...
The amount of coffee that people drink per day is normally
distributed with a mean of 16 ounces and a standard deviation of 5
ounces. 18 randomly selected people are surveyed. Round all answers
to 4 decimal places where possible.
I don't have a calculator so I have been doing this in Excel. If
I can get the explanation using excel that would be great!
The amount of coffee that people drink per day is normally distributed with a mean...
The amount of coffee that people drink per day is normally distributed with a mean of...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 4.5 ounces. 9 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. What is the distribution of a? T-N c. What is the probability that one randomly selected person drinks between 15.5 and 17.5 ounces of coffee per day? d. For the 9...
The amount of coffee that people drink per day is normally distributed with a mean of...
The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 6 ounces. 13 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. What is the distribution of m?T-NG c. What is the probability that one randomly selected person drinks between 14 and 16 ounces of coffee per day? d. For the 13 people,...
2. It’s conventional wisdom that grad students drink 4 cups of coffee per day. A graduate...
2. It’s conventional wisdom that grad students drink 4 cups of coffee per day. A graduate student took a sample of 25 fellow graduate students in her statistics class, and in the sample produced a mean of 3.3 cups per day and a standard deviation of 1.75. Because of this, she believes that the average is actually less than what is commonly thought (4 cups per day). Do we believe the graduate student’s claim or the conventional wisdom? Use a...
The amount of coffee that people drink per day is normally distributed with a mean of...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a deviation of 5.5 ounces. 32 random possible standard ly selected people are surveyed. Round all answers to 4 decimal places where a, what is the distribution of X? X-N(16-55 b. What is the distribution of #? z N 169727 e What is the probability that one randomly selected person drinks berween 15.7 and 165 ounces of coffe per day? d....
A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day
A survey of college students was conducted during final exam week to assess the number of cups of coffee consumed each day. The mean number of cups was 5 with a standard deviation of 1.5 cups. The distribution was normal. A. What proportion of students drank 7 or more cups of coffee per day? B. What proportion of students drank 2 or more cups of coffee per day? C. What proportion of students drank between 2 and 7 cups of...
please round to 4 decimal places The amount of coffee that people drink per day is normally distributed with a mean...
please round to 4 decimal places
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5 ounces. 15 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. What is the distribution of X? X N b. What is the distribution of 7 -N c. What is the probability that one randomly selected person drinks between 15.5 and 17 ounces of coffee...
2. The average number of cups of coffee drunk each day by a randomly selected sample...
2. The average number of cups of coffee drunk each day by a randomly selected sample of 25 students was 4.4. Assume the population standard deviation is 0.5 cups of coffee. Does the sample provide enough statistical evidence to support a claim that students drink 4 cups of coffee per day on average? Test the hypothesis at a 1% level of significance. Perform a 1-sample Z-test of mean to assess the sample evidence. A. State the null and alternative hypotheses...
fee? 5) Amon g coffee drinkers, men drink a mean of 3.4 cups per day with a standard deviation of 0.8 cup. Assum distribution. e the number of cups per day follows a normal a. What proportion drinks 2 cups per day or more? b. What proportion drinks no more than 4 cups per day?
A sample of 2,500 people was asked how many cups of coffee they drink in the morning. You are given the following sample information. Cups of Coffee Frequency 800 200 2 900 600 Total: 2,500 The expected value is 1.52. Find the variance of the number of cups of coffee. O 0.76 0.87 1.17 1.37
The amount of coffee that people drink per day is normally
distributed with a mean of 16 ounces and a standard deviation of 5
ounces. 18 randomly selected people are surveyed. Round all answers
to 4 decimal places where possible.
I don't have a calculator so I have been doing this in Excel. If
I can get the explanation using excel that would be great!
The amount of coffee that people drink per day is normally distributed with a mean...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 4.5 ounces. 9 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. What is the distribution of a? T-N c. What is the probability that one randomly selected person drinks between 15.5 and 17.5 ounces of coffee per day? d. For the 9...
The amount of coffee that people drink per day is normally distributed with a mean of 15 ounces and a standard deviation of 6 ounces. 13 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X-N b. What is the distribution of m?T-NG c. What is the probability that one randomly selected person drinks between 14 and 16 ounces of coffee per day? d. For the 13 people,...
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a deviation of 5.5 ounces. 32 random possible standard ly selected people are surveyed. Round all answers to 4 decimal places where a, what is the distribution of X? X-N(16-55 b. What is the distribution of #? z N 169727 e What is the probability that one randomly selected person drinks berween 15.7 and 165 ounces of coffe per day? d....
please round to 4 decimal places
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5 ounces. 15 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. What is the distribution of X? X N b. What is the distribution of 7 -N c. What is the probability that one randomly selected person drinks between 15.5 and 17 ounces of coffee...
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