Question
In: Statistics and Probability
A dentist wants to find the average time taken by one of her hygienists to take...
A dentist wants to find the average time taken by one of her hygienists to take X-ray and clean the tooth for her patients. She recorded the time to serve 24 randomly selected patients by the hygienist. The data of this experiment are save in the column “Time” of the SPSS file Ass_2Q1.sav.
|
Time |
|
38 33 38 40 37 37 37 39 36 33 36 38 34 38 36 36 34 33 32 35 33 35 35 32 |
- Compute the appropriate point estimate for population (true) mean time taken by this hygienist.
- Construct a 98% confidence interval for the true average time taken by this hygienist.
- The standard average for all the hygienists for this type of job is 34 minutes. Do the sample data provides evidence that the average time taken by the hygienist is longer than standard average for this job type? Use 1% significance level.
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orchestra answered 11 months agoRelated Solutions
A dentist wants to find the average time taken by one of her hygienists to take...
A dentist wants to find the average
time taken by one of her hygienists to take X-ray and clean the
tooth for her patients. She recorded the time to serve 24 randomly
selected patients by the hygienist. The data of this experiment are
save in the column “Time” of the SPSS file .
Time
36.80
39.80
38.60
38.30
35.80
32.60
38.70
34.50
37.00
32.00
40.90
33.80
37.10
31.00
35.10
38.20
36.60
38.80
39.60
39.70
35.10
38.20
32.70
40.50
Compute the...
a dentist wants to find out the average time taken by her hygienist for x rays...
a dentist wants to find out the average time taken by her
hygienist for x rays and clean teeth for patients. she recorded the
time to serve 24 randomly selected patients . construct a 99%
confidence interval for the average time taken
Time
36.80
39.80
38.60
38.30
35.80
32.60
38.70
34.50
37.00
32.00
40.90
33.80
37.10
31.00
35.10
38.20
36.60
38.80
39.60
39.70
35.10
38.20
32.70
40.50
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18
24
23
34
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19
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A research council wants to estimate the mean length of time (in minutes) that the average...
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minutes) that the average U.S. adult spends watching television
using digital video recorders (DVR’s) each day. To determine the
estimate, the research council takes random samples of 35 U.S.
adults and obtains the following times in minutes.
24
27
26
29
33
21
18
24
23
34
17
15
19
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18
22
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