Using the t-distribution, it is found that the 95% confidence interval to estimate the mean breaking force for acrylic bone cement, in newtons, is (267.264, 344.876).
We are given the <u>standard deviation for the sample</u>, which is why the t-distribution is used to solve this question.
The information given is:
- Sample mean of .
- Sample standard deviation of .
- Sample size of .
The confidence interval is:
The critical value, using a t-distribution calculator, for a two-tailed <u>95% confidence interval</u>, with 7 - 1 = <u>6 df</u>, is t = 2.4469.
Hence, replacing the values, the interval is:
Then, the 95% confidence interval to estimate the mean breaking force for acrylic bone cement, in newtons, is (267.264, 344.876).
A similar problem is given at brainly.com/question/15180581