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Dave the jogger runs the same route every day (about 2.2 miles). On 18 consecutive days, he recorded the number of steps on his Fitbit. The results are shown below. Construct a 90 percent confidence interval for the true mean number of steps Dave takes on his run. Steps 3450 3363 3228 3360 3304 3407 3324 3365 3290 3289

Dave the jogger runs the same route every day (about 2.2 miles). On 18 consecutive days, he recorded the number of steps on his Fitbit. The results are shown below. Construct a 90 percent confidence interval for the true mean number of steps Dave takes on his run. Steps 3450 3363 3228 3360 3304 3407 3324 3365 3290 3289

MATLAB: An Introduction with Applications
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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Dave the jogger runs the same route every day (about 2.2 miles). On 18 consecutive days, he
recorded the number of steps on his Fitbit. The results are shown below.
Construct a 90 percent confidence interval for the true mean number of steps Dave takes on his
run.
Steps
3450
3363
3228
3360
3304
3407
3324
3365
3290
3289
3346
3252
3237
3210
3140
3220
3103
3129

Expert Solution
Step 1: Introduce the given information

Here the given data values are:-

3450

3363

3228

3360

3304

3407

3324

3365

3290

3289

3346

3252

3237

3210

3140

3220

3103

3129

We have to calculate 90% confidence interval.

Using Formula,

c o n f i d e n c e space i n t e r v a l space equals x with bar on top plus-or-minus t subscript c cross times fraction numerator s over denominator square root of n end fraction

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