Question

A commercial refrigerator specification calls for a variance of less than 36 degree Celsius. You have...

A commercial refrigerator specification calls for a variance of less than 36 degree Celsius. You have been asked to conduct a study to determine if this is true or not. To do this, you have selected a random sample of 7 taken and find sample standard deviation equal to 7.0  At the 0.05 level of significance, can you conclude that the specification for the temperature variance is met?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or...
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or higher (The Wall Street Journal). A random sample of 117 employees in the private sector showed that 30 have a bachelor's degree or higher. Does this indicate that the percentage of employees holding bachelor's degrees or higher in the private sector is less than in the federal civilian sector? Use α = 0.05. What are we testing in this problem? single meansingle proportion     What...
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or...
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or higher (The Wall Street Journal). A random sample of 123 employees in the private sector showed that 32have a bachelor's degree or higher. Does this indicate that the percentage of employees holding bachelor's degrees or higher in the private sector is less than in the federal civilian sector? Use α = 0.05. a. What are we testing in this problem? single mean single proportion     ...
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or...
The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's degree or higher (The Wall Street Journal). A random sample of 115 employees in the private sector showed that 32 have a bachelor's degree or higher. Does this indicate that the percentage of employees holding bachelor's degrees or higher in the private sector is less than in the federal civilian sector? Use α = 0.05. a.) What are we testing in this problem? -single proportion -single...
When using inferential statistics, it is critical to have: More than one degree of freedom. A...
When using inferential statistics, it is critical to have: More than one degree of freedom. A truly random sample of the population. A binomial random variable A strong correlation with a Poisson distribution. A normally distributed population. The three ways of assessing probabilities are: Classical, Empirical, and Subjective Normal, Poisson, and Hypergeometric Type I, Type II, and Secular Binomial, Geometric, and a priori Global test, Histogram, and Stepwise If there are three, equally-likely events, the probability of each event occurring...
You have a glass of water at 83 degrees C. You want to boil it by...
You have a glass of water at 83 degrees C. You want to boil it by putting it in a vacuum. What is the smallest percentage of air molecules you would have to remove from the vacuum chamber to allow it to boil? Hint: to boil, the vapor pressure of water must be equal to the external pressure. (You will have to refer to a chart to figure out the vapor pressure of water at 83 degrees). (Remember, atmospheric pressure...
The average salary in this city is $47,300. Is the average less for single people? 60...
The average salary in this city is $47,300. Is the average less for single people? 60 randomly selected single people who were surveyed had an average salary of $46,132 and a standard deviation of $10,540. What can be concluded at the αα= 0.05 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion The null and alternative hypotheses would be: H0:  ? μ p  ? > = ≠ <       ...
The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7. Do...
The average number of cavities that thirty-year-old Americans have had in their lifetimes is 7. Do twenty-year-olds have fewer cavities? The data show the results of a survey of 12 twenty-year-olds who were asked how many cavities they have had. Assume that the distribution of the population is normal. 4, 5, 6, 6, 8, 6, 7, 4, 8, 5, 4, 7 What can be concluded at the αα = 0.05 level of significance? For this study, we should use Select...
From public records, individuals were identified as having been charged with drunken driving not less than...
From public records, individuals were identified as having been charged with drunken driving not less than 6 months or more than 12 months from the starting date of the study. Two random samples from this group were studied. In the first sample of 30 individuals, the respondents were asked in a face-to-face interview if they had been charged with drunken driving in the last 12 months. Of these 30 people interviewed face to face, 16 answered the question accurately. The...
Have you ever wondered what it means to click the “offset carbon emissions” button when you...
Have you ever wondered what it means to click the “offset carbon emissions” button when you book a flight or train trip? It adds a small cost to your ticket, but how does this reduce emissions? The money is typically used to fund projects that reduce carbon emissions. One such project type is the introduction of more efficient cooking stoves into communities. Much of the world uses inefficient charcoal or wood stoves that result in excessive indoor air pollution, deforestation,...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades:...
Calculate the mean, median, mode, variance (population) and standard deviation (sample) for the following test grades: 65, 60, 67, 71, 75, 80, 65 Use this information to answer questions #1-4. Question 1 (0.5 points) Saved The mode is: Question 1 options: 65 60 There is no modal category 75 71 Question 2 (0.5 points) Saved The median is: Question 2 options: 67 65 80 66 None of the above Question 3 (0.5 points) What is the approximate population variance for...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT