menu
bartleby
search
close search
Hit Return to see all results

A manufacturer claims that the calling range( in feet) of its 900 mhz cordless telephone is greater than that of its leading competitors.  A sample of 5 phones from the manufacturer had a mean range of 1390 feet with a standard deviation of 36  feet. A sample of 11 similar phones from its competitor had a mean range of 1340 feet with a standard  deviation of 33 feet.Do the results support the manufacturer claim? Let u1 be the true mean range  of the manufacturer cordless telephone  and u2 be the true  mean range of the competitors cordless telephone. Use a significance level of q= 0.01 for the test. Assume that the population variance are equal and that the two populations are normally distributed.  1.State the null alternative hypothesis for the test. 2.compute the value of the t test statistic. Round to three decimals. 3.determine the decision rule for rejecting the null hypothesis Ho. Round to three decimal places.4.state the conclusion.

Question

A manufacturer claims that the calling range( in feet) of its 900 mhz cordless telephone is greater than that of its leading competitors.  A sample of 5 phones from the manufacturer had a mean range of 1390 feet with a standard deviation of 36  feet. A sample of 11 similar phones from its competitor had a mean range of 1340 feet with a standard  deviation of 33 feet.Do the results support the manufacturer claim? Let u1 be the true mean range  of the manufacturer cordless telephone  and u2 be the true  mean range of the competitors cordless telephone. Use a significance level of q= 0.01 for the test. Assume that the population variance are equal and that the two populations are normally distributed.  

1.State the null alternative hypothesis for the test. 

2.compute the value of the t test statistic. Round to three decimals. 

3.determine the decision rule for rejecting the null hypothesis Ho. Round to three decimal places.

4.state the conclusion.

check_circleAnswer
Step 1

The provided information are:

fullscreen
Step 2
  1. The null and alternative hypotheses are:
fullscreen
Step 3
  1. The test statistic can be calcula...
fullscreen

Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Our solutions are written by experts, many with advanced degrees, and available 24/7

See Solution
Tagged in

Math

Statistics

Hypothesis Testing

Related Statistics Q&A

Find answers to questions asked by student like you

Show more Q&A add
question_answer

Q: Select the statistic test that best fits each description. Study examining how much of the variation...

A: Regression:Regression analysis explains whether two variables are related or not and correlation exp...

question_answer

Q: A recent study showed that the modern working person experiences an average of 2.1 hours per day of ...

A: Confidence interval:The (1-α) % confidence interval for population mean µ, when σ is known is given ...

question_answer

Q: Bill Alther is a zoologist who studies Anna's hummingbird (Calypte anna).† Suppose that in a remote ...

A: (a) Level of significance for the test:Level of significance (α) defines the probability of rejectin...

question_answer

Q: Hi. How do you calculate this Poisson Distribution in the TI-83? Thanks.

A: Let ‘Y’ be the waiting time between two busses which follows exponential distribution with mean wait...

question_answer

Q: what would be the mean and standard deviation of each chart!! I am having trouble calculating this. ...

A: Calculation: Mean:Before mean:Control: (5 + 1 + 2)/3 = 2.67. [(Before Stephanie + Before Brenda + Be...

question_answer

Q: Suppose you are assigned the number 1, and the other students in your statistics class call out cons...

A: Solution:(a) A random sample of four students from statistics class can be selected by using a compu...

question_answer

Q: construct a probability distribution and draw a graph for a family of 3 children.  Let X represent t...

A: According to the given question, construct a probability distribution and draw a graph for a family ...

question_answer

Q: The Toylot company makes an electric train with a motor that it claims will draw an average of only ...

A: The provided information are:

question_answer

Q: Five children aged 2, 3, 5, 7 and 8 years old weigh 14, 20, 32, 42 and 44 kilograms respectively. Fi...

A: Let x be the age of children and y be the weight of children.The equation of the regression line is:

Sorry about that. What wasn’t helpful?