Introduction to Statistics and Data Analysis
5th Edition
ISBN: 9781305750999
Author: Peck Olson Devore
Publisher: CENGAGE C
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Chapter 16.3, Problem 25E
The article “Effect of Storage Temperature on the Viability and Fertility of Bovine Sperm Diluted and Stored in Caprogen” (New Zealand Journal of Agricultural Research [1984]: 173–177) examined the effect of temperature on sperm survival. Survival data for various storage times are given at right.
Use Friedman’s test with a 0.05 significance level to determine if survival is related to storage temperature. Regard time as the blocking factor.
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Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel, May 19,
2018). Hotel occupancy data for February in two consecutive years are as follows.
Previous Year
Occupied Rooms
Total Rooms
Current Year
1,505
1,750
1,577
1,900
a. Formulate the hypothesis test that can be used to determine whether there has been an increase in the proportion of rooms occupied over the one-year period.
Let P₁ = population proportion of rooms occupied for current year
P2 = population proportion of rooms occupied for previous year
Ho: P1 P2 less than or equal to 0
Ha P₁ P2 greater than 0
b. What is the estimated proportion of hotel rooms occupied each year (to 2 decimals)?
Current year
Previous Year
c. Conduct a hypothesis test. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B.
p-value =
Using a 0.05 level of significance, what is your conclusion?
We can conclude
that there has been an…
Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel,
May 19, 2018). Hotel occupancy data for February in two consecutive years are as follows.
Current Year
Occupied Rooms
Total Rooms
1,750
1,800
a. Formulate the hypothesis test that can be used to determine whether there has been an increase in the proportion of rooms occupied over the one-year
period.
Let P-population proportion of rooms occupied
P2 = population proportion of rooms occupied
current year
previous year
HoP-P-Select your answer.
H₂i Pi-Pa-Select your answer
b. What is the estimated proportion of hotel rooms occupied each year (to 2 decimals)?
Current year
Previous Year
c. Conduct a hypothesis test. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B.
p-value
Using a 0.05 level of significance, what is your conclusion?
We Select you
ct your answer that there has been an increase in the hotel occupancy…
Tourism is extremely important to the economy of Florida. Hotel occupancy is an often-reported measure of visitor volume and visitor activity (Orlando Sentinel). Hotel occupancy data for February in two consecutive years are as follows
Current Year
Previous Year
Осcupied
Rooms
1,470
1,458
Total
1,750
1,800
Rooms
(a) Formulate the hypothesis test that can be used to determine if there has been an increase in the proportion of rooms occupied over the one-year period. (Let p,
population proportion of rooms occupied for current year and
P2 = population proportion of rooms occupied for previous year.)
Ho: P1-P22 0
H: P1- P2 0
Ho: P1- P2 0
Hai P1 P2 = 0
Ho: P1- P2 = 0
H P1- P2 0
Ho: P1- P2 # 0
Hi P1- P2 = 0
(b) What is the estimated proportion of hotel rooms occupied each year?
current
previous
(c) Calculate the test statistic. (Round your answer to two decimal places.)
What is the p-value? (Round your answer to four decimal places.)
p-value
Using a 0.05 level of significance, what is your…
Chapter 16 Solutions
Introduction to Statistics and Data Analysis
Ch. 16.1 - Urinary fluoride concentration (in parts per...Ch. 16.1 - Prob. 2ECh. 16.1 - Prob. 3ECh. 16.1 - A blood lead level of 70 mg/ml has been commonly...Ch. 16.1 - The effectiveness of antidepressants in treating...Ch. 16.1 - Prob. 6ECh. 16.1 - Prob. 7ECh. 16.2 - The effect of a restricted diet in the treatment...Ch. 16.2 - Peak force (N) on the hand was measured just prior...Ch. 16.2 - In an experiment to study the way in which...
Ch. 16.2 - Prob. 11ECh. 16.2 - Prob. 12ECh. 16.2 - Prob. 13ECh. 16.2 - Prob. 14ECh. 16.2 - Prob. 15ECh. 16.2 - Prob. 16ECh. 16.2 - Prob. 17ECh. 16.2 - The signed-rank test can be adapted for use in...Ch. 16.3 - Prob. 19ECh. 16.3 - Prob. 20ECh. 16.3 - The given data on phosphorus concentration in...Ch. 16.3 - Prob. 22ECh. 16.3 - Prob. 23ECh. 16.3 - The following data on amount of food consumed (g)...Ch. 16.3 - The article Effect of Storage Temperature on the...
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