A researcher wished to compare the average daily hotel room rates between San Francisco and Los...

A researcher wished to compare the average daily hotel room rates between San Francisco and Los Angeles. The researcher obtained an SRS of 15 hotels in downtown San Francisco and found the sample mean ? ̅1=$156, with a standard deviation ?_1= $15. The researcher also obtained an independent SRS of 10 hotels in downtown Los Angeles and found the sample mean ? ̅_2= $143, with a standard deviation ?_2= $10. Let 1 and 2 represent the mean cost of the populations of all hotels in these cities, respectively. Assume the two-sample t procedures are safe to use, i.e. Unequal Variances. a)Suppose the researcher had wished to test the hypotheses H0: µ1 = µ2 vs. Ha: µ1 ≠ µ2 at the 5% significance level (i.e., α = 0.05). The numerical value of the two-sample t statistic is? b)What is your P-value? c)What are your statistical conclusion and its interpretation? Use significance level, α = 0.05 (or 5%

. d)Based on your P-value and conclusion in (b) and (c), will you conclude that a 99% confidence interval for µ1 - µ2 includes the value 0? Explain.

Expert Solution

d.

As p value = 0.016 > 0.01

Ho is accepted.

This implies difference between means is 0

Therefore, we conclude that 99% confidence interval contains 0.

Dear student,
I am waiting for your feedback. I have given my 100% to solve your queries. If you satisfied with my answer then please please like this.
Thank You

orchestra answered 1 year ago

] The average cost per night of a hotel room in San Francisco is $550 with...

] The average cost per night of a hotel room in San Francisco is $550 with a standard deviation is $150 based on a sample of 50 hotel room rates. a) Clearly state what the random variable in this problem is? b) What is an appropriate distribution to be used for finding the confidence intervals for this problem and why? c) Construct a 99% confidence interval estimate on the mean of all hotel room rates. d) What is the 90%...

Jason Lowrey is a frequent traveler between Los Angeles and San Francisco. For the past month,...

Jason Lowrey is a frequent traveler between Los Angeles and San Francisco. For the past month, he wrote down the flight times for three different airlines. The results are contained in the attached file: Flight Times Spring 2019. Use the .05 significance level and the six-step hypothesis-testing process to check if there is a difference in the mean flight times among the three airlines. Write a statement to Mr. Lowrey explaining your results. Do your work in Excel Western Air...

Jacob Lee is a frequent traveler between Los Angeles and San Francisco. For the past month,...

Jacob Lee is a frequent traveler between Los Angeles and San Francisco. For the past month, he wrote down the flight times on three different airlines. Goust Jet Red Cloudtran 51 50 54 51 54 55 54 52 60 51 49 44 47 58 42 60 54 64 40 80 A. Use the 0.05 significance level to check ifbvthere is a different in the mean fliht times among the three airlines B. Is there different between goulf and Couldtran (use...

An airline maintains a daily schedule between San Francisco and Honolulu. The airplanes used for this...

An airline maintains a daily schedule between San Francisco and Honolulu. The airplanes used for this route have a seating capacity of 180. The fixed cost of making a one-way flight between the two cities is $8,000. It includes the cost of gasoline, wages, landing fees, and other lump sum expenses connected with the flight, but it does not include the general overhead expenses of the airline. The average ticket price is $120. The unit variable cost is $20, which...

A researcher wished to compare the average amount of time spent in extracurricular activities by high...

A researcher wished to compare the average amount of time spent in extracurricular activities by high school students in a suburban school district with that in a school district of a large city. The researcher obtained a simple random sample of 60 high school students in a large suburban school district and found the mean time spent in extracurricular activities per week to be six hours with a standard deviation of three hours. The researcher also obtained an independent simple...

In exercise 12, the following data on x = average daily hotel room rate and y...

In exercise 12, the following data on x = average daily hotel room rate and y = amount spent on entertainment (The Wall Street Journal, August 18, 2011) lead to the estimated regression equation ŷ = 17.49 + 1.0334x. For these data SSE = 1541.4. Click on the webfile logo to reference the data. a. Predict the amount spent on entertainment for a particular city that has a daily room rate of $89 (to 2 decimals). $ b. Develop a...

In San Francisco, 15% of workers take public transportation daily. A) In a sample of 20...

In San Francisco, 15% of workers take public transportation daily. A) In a sample of 20 San Fransisco workers what is the probability that between 9 and 10 workers take public transportation daily? B) In a sample of 19 San Fransisco workers what is the probability that at most 5 workers take public transportation daily? C) In a sample of 19 San Fransisco workers what is the probability that at least 14 workers take public transportation daily? D) In a...

A certain bookstore chain has two stores, one in San Francisco and one in Los Angeles....

A certain bookstore chain has two stores, one in San Francisco and one in Los Angeles. It stocks three kinds of book: hardcover, softcover, and plastic (for infants). At the beginning of January, the central computer showed the following books in stock. Hard Soft Plastic San Francisco 2,000 3,000 6,000 Los Angeles 1,000 5,000 2,000 Suppose its sales in January were as follows: 200 softcover, 400 hardcover, and 400 plastic books sold in Los Angeles, and 1,300 softcover books,...

The Fairmont Hotel in San Francisco needs to replace its air conditioning system. There are two...

The Fairmont Hotel in San Francisco needs to replace its air conditioning system. There are two alternatives, both of which can do the job equally well: Machine name AC 1 AC 2 Purchase price $40,000 $60,000 Operating cost (end of each year) $17,000 $8,000 Useful life (years) 4 6 Straight line depreciation to zero over (years) 4 6 Salvage value at end of useful life $0 $0 The relevant discount rate is 10% and the marginal tax rate is 35%....

In San Francisco, 30% of workers take public transportation daily. In a sample of 10 workers,...

In San Francisco, 30% of workers take public transportation daily. In a sample of 10 workers, a.Clearly state what the random variable in this problem is? b.What is an appropriate distribution to be used for this problem and why? c.What is the probability that exactly three workers take public transportation daily? d.What is the probability that NONE of the workers take public transportation daily? e.What is the probability that more than five workers take public transportation daily? f.What is the...

Question