Company a packages roofing nails and boxes that are normally distributed with a mean of 272 nails and a standard deviation of 5.4 nails.
company b packages roofing nails in boxes that are normally distributed with a mean of 249 nails and a standard deviation of 3.8 nails

which company is more likely to produce a box of 260 roofing nails?
explain your answer using z

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