Question

he mean age of instructors at Widget college is 52.7 years. Choose the correct null and...

he mean age of instructors at Widget college is 52.7 years. Choose the correct null and alternative hypotheses based on the above claim

Homework Answers

Answer #1

solution

this is the two tailed test .  

The null and alternative hypothesis is ,

H0 :   = 52.7

Ha :     52.7

answer=

The null and alternative hypothesis is ,

H0 :   = 52.7

Ha :     52.7

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The mean age when smokers first start is 13 years old with a population standard deviation...
The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 34 smokers found that their mean starting age was 12.2 years old. Do the data support the claim at the 10% significance level? What...
The mean age when smokers first start is 13 years old with a population standard deviation...
The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 34 smokers found that their mean starting age was 12.1 years old. Do the data support the claim at the 1% significance level? ho=...
The mean age when smokers first start is 13 years old with a population standard deviation...
The mean age when smokers first start is 13 years old with a population standard deviation of 1.8 years. A researcher thinks that smoking age has significantly changed since the invention of ENDS—electronic nicotine delivery systems. A survey of smokers of this generation was done to see if the mean age has changed. The sample of 35 smokers found that their mean starting age was 12.1 years old. Do the data support the claim at the 10% significance level? What...
Open the data for Rate My Professors: RateMP.MPJ. It is claimed that 33% of the instructors...
Open the data for Rate My Professors: RateMP.MPJ. It is claimed that 33% of the instructors in the FHDA district are from Foothill College. You want to design a test to reject this claim. State the null and alternative hypotheses in words. State the null and alternative hypotheses in population parameters. What model are you choosing and what assumptions are needed? Conduct the test at a significance level of 5%, using MINITAB command Stat>Basic Statistics>1 Proportion. Make sure you choose...
Choose all correct answers from the below list. The null and the alternative are complements of...
Choose all correct answers from the below list. The null and the alternative are complements of each other. In a hypothesis test you will always test the alternative hypothesis. The statement sigma space greater than space 38 represents a claim. This claim is the null hypothesis. A statistical hypothesis is a statement about the population. The null hypothesis must always have the equality. A statistical hypothesis is a statement about a sample
he mean age of graduate students at a University is thought to be 31 years old....
he mean age of graduate students at a University is thought to be 31 years old. A random sample of 15 graduate students is taken. The sample mean age is 33 years and the sample standard deviation is three years. Does the sample data indicate that the population mean age is actually greater than 31 years old? Use a 1% level of significance. a.) What is α? State the null and alternate hypotheses. Will you use a left-tailed, right-tailed, or...
Several years​ ago, the mean height of women 20 years of age or older was 63.7...
Several years​ ago, the mean height of women 20 years of age or older was 63.7 inches. Suppose that a random sample of 45 women who are 20 years of age or older today results in a mean height of 64.2 inches. ​ (a) State the appropriate null and alternative hypotheses to assess whether women are taller today. ​ (b) Suppose the​ P-value for this test is 0.11. Explain what this value represents. ​ (c) Write a conclusion for this...
19. Suppose you wanted to estimate the mean age of native-born students at North Campus. How...
19. Suppose you wanted to estimate the mean age of native-born students at North Campus. How many students must you survey if you wanted to be 99% confident in your result and your error is no more than 2 years? Use the standard deviation of 8.65. 22. In a survey of 735 students at Broward College, North Campus, the mean number of hours spent on homework was 7.15 with a standard deviation of 3.20. Using these results, test the claim...
A college entrance test company determined that a score of 25 on the mathematics portion of...
A college entrance test company determined that a score of 25 on the mathematics portion of the test suggests that a student is ready for​ college-level mathematics. To achieve this​ goal, the company recommends that students take a core curriculum of math courses in high school. Suppose a random sample of 200 students who completed this core set of courses results in a mean math score of 25.7 on the college entrance test with a standard deviation of 3.3. Do...
The mean age of the patrons of a particular nightclub has historically been 35 years. The...
The mean age of the patrons of a particular nightclub has historically been 35 years. The proprietor of the nightclub wishes to determine if the mean age of his patrons has changed. He uses a sample of 36 recent evenings and finds that the average age of the patrons in the sample is 36.8 years in the standard deviation of 3. 6 years. Let u be the mean of the patrons of the nightclub. 1) State the null and alternative...