About 80% of the egg rolls sold in the u. s. grocery stores are made in houston, texas. a skilled wrapper can make 4000 egg roles in an 8 hour day. betty said this is about one egg role a minute. is her claim reasonable? explain.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables