40b. Construct a 95% confidence interval of the mean drive-through service times at dinner for Restaurant Y. Restaurant XRestaurant Y81981221271191531491192661751851381281151561281641302131283351353101381762261112121552921521311019924014123623918614415214220120217015011613860133201147175155112130138166175137189242196233230249192233351232310174209851921011845618817210778146143175142158101170125158149164129120181135148308125 Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 95%confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Comparethe results.Click the icon to view the data on drive-through service times.Construct a 95% confidence interval of the mean drive-through service times at dinner for Restaurant X.sec<μ )

The data shows the mean drive-through service times at dinner in seconds at two fast food…

Answered: Refer to the accompanying data set of…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 11PPS

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b. Construct a 95% confidence interval of the mean drive-through service times at dinner for Restaurant Y.

Restaurant X	Restaurant Y
81	98
122	127
119	153
149	119
266	175
185	138
128	115
156	128
164	130
213	128
335	135
310	138
176	226
111	212
155	292
152	131
101	99
240	141
236	239
186	144
152	142
201	202
170	150
116	138
60	133
201	147
175	155
112	130
138	166
175	137
189	242
196	233
230	249
192	233
351	232
310	174
209	85
192	101
184	56
188	172
107	78
146	143
175	142
158	101
170	125
158	149
164	129
120	181
135	148
308	125

Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a 95%
confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do the same for Restaurant Y. Compare
the results.
Click the icon to view the data on drive-through service times.
Construct a 95% confidence interval of the mean drive-through service times at dinner for Restaurant X.
sec<μ </ sec
(Round to one decimal place as needed.)

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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