7.5)Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a95%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.Construct a95%confidence interval of the mean drive-through service times at dinner for Restaurant X. --- sec<μ<---sec(Round to one decimal place as needed.) Service Times (seconds)Restaurant XRestaurant Y8811911514827010212015711917318212414916621413610812613112233330717311715413813723121329014597233243185127891362431391501991731166013920214714014020517211714517114716113816713419019922919335324123224623722830821120017718617484105581731031511791551677915014394131153165126136307147134189146130

Name: 7.5)Refer to the accompanying data set of mean drive-through service
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Description: 7.5)Refer to the accompanying data set of mean drive-through service times at dinner in seconds at two fast food restaurants. Construct a95%confidence interval estimate of the mean drive-through service time for Restaurant X at dinner; then do th

Testing of Hypothesis: Testing of hypothesis is a rule which, when the sample values have been…

Answered: 7.5) Refer to the accompanying data set…

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7.5)

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.

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.)

Service Times (seconds)
Restaurant X
Restaurant Y
88
119
115
148
270
102
120
157
119
173
182
124
149
166
214
136
108
126
131
122
333
307
173
117
154
138
137
231
213
290
145
97
233
243
185
127
89
136
243
139
150
199
173
116
60
139
202
147
140
140
205
172
117
145
171
147
161
138
167
134
190
199
229
193
353
241
232
246
237
228
308
211
200
177
186
174
84
105
58
173
103
151
179
155
167
79
150
143
94
131
153
165
126
136
307
147
134
189
146
130

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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