Question

Using the data below perform a one-way ANOVA test. Be sure to give the hypotheses, the value of F, the p-value, and the conclusion. Copy and paste the software output into your Word document.

An appliance manufacturing company want to test microwave ovens being sold. The researcher has identified three different types based on the number of watts of the ovens. Three random samples are taken and the data is given below:

Watts 800 900 1000

180 235 225

175 135 225

200 160 190

170 230 215

190 250 250

180 200 230

185 200 170

160 210 179

195 199 200

Answer #1

Watts | ||||||||||

800 | 900 | 1000 | Anova: Single Factor | |||||||

180 | 235 | 225 | ||||||||

175 | 135 | 225 | SUMMARY | |||||||

200 | 160 | 190 |
Groups |
Count |
Sum |
Average |
Variance |
|||

170 | 230 | 215 | 800 Watts | 9 | 1635 | 181.6667 | 156.25 | |||

190 | 250 | 250 | 900 Watts | 9 | 1819 | 202.1111 | 1313.861 | |||

180 | 200 | 230 | 1000 Watts | 9 | 1884 | 209.3333 | 691.5 | |||

185 | 200 | 170 | ||||||||

160 | 210 | 179 | ||||||||

195 | 199 | 200 | ANOVA | |||||||

Source of Variation |
SS |
df |
MS |
F |
P-value |
F crit |
||||

Between Groups | 3706.741 | 2 | 1853.37 | 2.572207 | 0.0972458 | 3.402826 | ||||

Within Groups | 17292.89 | 24 | 720.537 | |||||||

Total | 20999.63 | 26 |

Value of F=2.572207

p-value=0.0972458

Since p-value>0.05 so we fail to reject H_{0} at 5%
level of significance and conclude that there is no significant
difference between three different types microwave ovens based on
the number of watts of the ovens.

Complete the following for each problem below (this should all
be calculated by hand, show work to receive full credit): a) State
the null and alternative hypotheses (2 pts) b) Choose the
appropriate statistical procedure (independent or paired t-test) (2
pt) c) Identify the level of significance and corresponding
critical value (2 pts) d) Calculate t (5 pts) e) Express your
results in terms of p-values (p < or p > α) (1 pt) f)
Determine whether your results are...

A.J. Murray
200
Francisco Rodriguez
185
Juan Padilla
200
Royce Clayton
185
Aaron Cook
205
Freddie Bynum
180
Juan Perez
170
Ryan Doumit
200
Adrian Beltre
220
Geoff Blum
200
Juan Salas
190
Ryan Garko
225
Alex Gonzalez
202
Guillermo Quiroz
202
Justin Morneau
228
Ryan Howard
230
Ben Johnson
200
Heath Bell
244
Kendry Morales
220
Ryan Madson
190
Bengie Molina
220
Hideki Okajima
194
Kenny Lofton
180
Ryan Theriot
175
Bobby Jenks
270
J.C. Romero
198
Kevin Thompson...

The data below represents height in inches/weight in pounds.
Clearly identify the dependent and independent variables as well as
the domain and range. Choose any two points from the data using
different independent variables and use those two points to
determine the rate of change (slope). Then, using the dependent
data value of -500 as your initial value, write an equation for the
linear function model. Predict what you expect at a height of
75".
inches/pounds
60" - 105, 110...

Repeated data on individuals who
participated in a randomized experiment are presented below.
Participants
1
2
3
4
5
6
7
8
Assessment I
160
180
200
190
210
180
210
190
Assessment II
200
230
210
235
240
195
230
200
Is the mean difference from this experiment statistically
significant? Assume the level of significance is 5%. Use the steps
for hypothesis testing and show all your work.

The school principal wants to test whether a new work schedule
had changed the student performance. The scores before and after
the schedule was implemented are given below and it is measured .
You want to test if the work schedule was effective in increasing
the performance.
what are your null and alternate hypotheses? (0.5 Point)
What test do you use here? (0.5 Point)
Was the work schedule effective in increasing the performance
rating significantly? (1 Point)
Before
After
170...

The heights (in inches) and weights (in pounds) of 25 baseball
players are given below. Use Excel to find the best fit linear
regression equation, where height is the explanatory variable.
Round the slope and intercept to two decimal places.
Height Weight
71 186
72 211
73 220
70 165
72 180
72 195
70 175
74 202
78 240
71 170
74 180
73 185
76 257
77 215
76 287
77 220
73 200
76 223
76 200...

A survey on men and women’s shopping behavior collected data
from a sample of 50 men and 50 women. The following data on online
shopping spending every month.
Men
Women
148
272
211
176
256
251
309
235
190
145
205
179
203
30
208
135
231
200
125
270
149
174
205
123
195
199
178
195
196
192
198
102
110
110
199
184
181
228
168
316
218
170
222
234
206
163
168
245
239
174...

The following data values are scores on a recent 250-point final
given in one of my classes.
225 170 230 180 205 239 217 212 217 161 221 199 240 181 176 234
227 231 220 183 145 175 237 234 221 110 213 217 239 241
what percent of the values (to the nearest tenth of a percent)
are within 1.8 standard deviation of the mean?

A weight-lifting coach claims that weight-lifters can increase
their strength by taking a certain supplement. To test the theory,
the coach randomly selects 9 athletes and gives them a strength
test using a bench press. Thirty days later, after
regular training using the supplement, they are tested again.
The
results before and after taking the supplement are shown below:
Athlete Before 215 240 188 212 175 260 225 200 185 After 225 245
188 210 282 275 230 195...

The weights of 52 randomly selected NFL football players are
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deviation is 46.68. A 92% confidence interval for the mean weight
of football players will be conducted by answering the questions
below.
305
265
287
285
290
235
300
230
195
236
244
194
190
307
218
315
265
210
194
216
255
300
315
190
185
183
313
246
212
201
308
270
241
242
306
237
315...

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