Print Refrigerator manufacturers design their freezer units to maintain temperatures within a certain range. Suppose a major refrigerator manufacturer wants the temperature of a particular model to have a standard deviation equal to 5°F. The company tested the freezer under normal operation conditions. The table to the right shows the freezer temperature readings in degrees Fahrenheit. Use these readings to complete parts a and b. - 1.5 -5.6 -4.1 - 5.4 -2.6 - 4.2 - 54 -5.0 - 5.5 0.2 2.1 1.8 2.1 -2.9 -6.5 a. Using a = 0.10, test to determine if the company has achieved its goal. Identify the null and alternative hypotheses. Họ o? (1). H: o² (2). (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is(are) . (Round to three decimal places as needed. Use a comma to separate answers as needed.) State your conclusion. evidence that the standard deviation is (7). 5°F. Since the test statistic is (3). b. Use technology to find the p-value and interpret the result. The p-value is the (4) . (5) the null hypothesis. There is (6). - . (Round to three decimal places as needed.) Since the p-value is (8)- a, (9) the null hypothesis. There is (10). evidence to conclude that the standard deviation is (11). 5°F. (1) O 2 (2) O < O> (3) O between O less than O greater than (5) O reject O do not reject (9) O do not reject O reject (10) O sufficient O insufficient (6) O sufficient (7) O less than (8) O greater than O less than (4) O upper critical value, O insufficient O critical value, O crtical values, O lower critical value, O greater than O not equal to O equal to Os (11) O not equal to
Print Refrigerator manufacturers design their freezer units to maintain temperatures within a certain range. Suppose a major refrigerator manufacturer wants the temperature of a particular model to have a standard deviation equal to 5°F. The company tested the freezer under normal operation conditions. The table to the right shows the freezer temperature readings in degrees Fahrenheit. Use these readings to complete parts a and b. - 1.5 -5.6 -4.1 - 5.4 -2.6 - 4.2 - 54 -5.0 - 5.5 0.2 2.1 1.8 2.1 -2.9 -6.5 a. Using a = 0.10, test to determine if the company has achieved its goal. Identify the null and alternative hypotheses. Họ o? (1). H: o² (2). (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is(are) . (Round to three decimal places as needed. Use a comma to separate answers as needed.) State your conclusion. evidence that the standard deviation is (7). 5°F. Since the test statistic is (3). b. Use technology to find the p-value and interpret the result. The p-value is the (4) . (5) the null hypothesis. There is (6). - . (Round to three decimal places as needed.) Since the p-value is (8)- a, (9) the null hypothesis. There is (10). evidence to conclude that the standard deviation is (11). 5°F. (1) O 2 (2) O < O> (3) O between O less than O greater than (5) O reject O do not reject (9) O do not reject O reject (10) O sufficient O insufficient (6) O sufficient (7) O less than (8) O greater than O less than (4) O upper critical value, O insufficient O critical value, O crtical values, O lower critical value, O greater than O not equal to O equal to Os (11) O not equal to
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:Print
2. Refrigerator manufacturers design their freezer units to maintain temperatures within a certain range. Suppose a major refrigerator manufacturer wants the temperature of a particular model to have a standard deviation equal to
5°F. The company tested the freezer under normal operation conditions. The table to the right shows the freezer temperature readings in degrees Fahrenheit. Use these readings to complete parts a and b.
- 1.5
- 4.2
- 5.6
- 5.4
- 2.6
- 4.1
- 5.4
5.0
0.2
5.5
2.1
1.8
2.1
- 2.9
- 6.5
a. Using a = 0.10, test to determine if the company has achieved its goal.
Identify the null and alternative hypotheses.
Ho:
(1)
H1:0° (2)
(Type integers or decimals.)
Calculate the appropriate test statistic.
The test statistic is
(Round to two decimal places as needed.)
Determine the appropriate critical value(s).
The critical value(s) is(are)
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
State your conclusion.
Since the test statistic is (3)
the (4)
the null hypothesis. There is (6)
evidence that the standard deviation is (7)
5°F.
b. Use technology to find the p-value and interpret the result.
The p-value is
(Round to three decimal places as needed.)
Since the p-value is (8)
a, (9)
the null hypothesis. There is (10)
evidence to conclude that the standard deviation is (11)
5°F.
O reject
O do not reject
(6) O sufficient
O insufficient
O less than
(4) O upper critical value,
O critical value,
O critical values,
(8) O greater than
O less than
(10) O sufficient
O insufficient
(1) O 2
(2)
(3)
between
(5)
(7)
(9) O do not reject
O greater than
O not equal to
O equal to
less than
O reject
O greater than
critical value,
(11) O not equal to
areater than
000
Expert Solution
Step 1
a.
Consider that σ2 is the true variance of temperatures of refrigerator.
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