Mathematics, 11.12.2019 22:31, thisisalegand
Cadmium, a heavy metal, is toxic to animals. mushrooms, however, are able to absorb and accumulate cadmium at high concentrations. the czech and slovac governments have set a safety limit for cadmium in dry vegetables at 0.5 part per million (ppm). m. melgar et al. measured the cadmium levels in a random sample size 12 of the edible mushroom boletus pinicola and published the results in the paper "influence of some factors in toxicity and accumulation of cd from edible wild macrofungi in nw spain". here are the data: 0.24, 0.59, 0.62, 0.16, 0.77, 1.33, 0.92, 0.19, 0.33, 0.25, 0.59, 0.32 at the 5% significance level, do the data provide sufficient evidence to conclude that the mean cadmium level in boletus pinicola mushrooms differ from the government’s limit of 0.5 ppm? 1) assume that the population standard deviation is known and equal to 0.37 ppm and so apply one mean-z test using r. 2) assume that the population standard deviation is unknown and sample standard deviation must be used as an estimate to population standard deviation and so apply one mean-t test using r.
Answers: 3
Mathematics, 21.06.2019 17:00, burritomadness
If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?
Answers: 2
Mathematics, 21.06.2019 19:10, iziyahh902
How many solutions does the nonlinear system of equations graphed below have?
Answers: 2
Mathematics, 22.06.2019 02:30, katlynsellars7750
Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.
Answers: 1
Mathematics, 22.06.2019 05:00, travisalier4171
Does y+x=1 show direct variation. yes or no.
Answers: 1
Cadmium, a heavy metal, is toxic to animals. mushrooms, however, are able to absorb and accumulate c...
Mathematics, 24.11.2019 00:31
Mathematics, 24.11.2019 00:31
Mathematics, 24.11.2019 00:31
Mathematics, 24.11.2019 00:31
Mathematics, 24.11.2019 00:31