In a 4-week study about the effectiveness of using magnetic insoles to treat plantar heel pain, 54 randomly chosen subjects
wore magnetic insoles and 41 randomly chosen subjects wore
nonmagnetic soles. When asked if they felt better, 17 of the
magnetic sole wearers said yes, and 18 of the nonmagnetic sole
wearers said yes also. Construct and interpret a 95% confidence
interval for the difference in proportion of subjects who said they
feel better after wearing magnetic or nonmagnetic insoles.
Fill in the appropriate blanks to complete the confidence interval.
I am 95% confident that the interval from Select]
& to
гу
[Select)
captures the true difference of the
proportions. There is
convincing evidence of a
significant difference in the proportions.
р

Anull hypothesis states that the difference between 8 hours of sleep and 3 hours of sleep has no effect on the number of pictures a student will remember during a picture memory interface test (pmit). examining the mit database, an extremely small t-value of 0.1611 is found. this t-value is much smaller than the smallest t-value on the chart for p-value reference. from this information we can: select one: a. accept the null hypothesis because the p-value obtained shows that the difference between the two groups being tested is not statistically significant b. accept the null hypothesis because the p-value obtained was statistically significant c. reject the null hypothesis because of the p-value obtained d. reject the null hypothesis because the data obtained is statistically significant