hello i need help with these statistic questions please and thank you all information is below in order thank you

question 4

Some governments have set a safety limit for cadmium in dry vegetables at 0.5 part per million (ppm). Researchers measured the cadmium levels in a random sample of a certain type of edible mushroom. The accompanying table shows the data obtained by the researchers. Find and interpret a 99% confidence interval for the mean cadmium level ofall mushrooms of this type. Assume a population standard deviation of cadmium levels in mushrooms of this type of 0.34 ppm. (Note: The sum of the data is 5.36 ppm.) Click here to view the data. Click here to view page 'i of the table of areas under the standard normal curve. Click here to view page 2 of the table of areas under the standard normal curve. The 99% condence interval is from ppm to ppm. (Round to three decimal places as needed.) Interpret the 99% confidence interva . Select all that apply. 99% of all possible random samples of 12 mushrooms of this type have mean cadmium levels that are between the interval's bounds. There is a 99% chance that the mean cadmium level of all mushrooms of this type is between the interval's bounds. 99% of all mushrooms of this type have cadmium levels that are between the interval's bounds. POP\"? With 99% condence, the mean cadmium level of all mushrooms ofthis type is between the interval's bounds. Mushroom Cadmium Levels - X 0.16 0.57 0.53 0.13 0.70 1.04 0.83 0.12 0.30 0.18 0.54 0.26 Print DoneArandom sample of 29 recent weddings in a country yielded a mean wedding cost of $25,335.25. Assume that recent wedding costs in this country are normally distributed with a standard deviation of $1999. Complete parts {a} through {c} below. 3. Determine a 95% confidence interval for the mean cost, p. of all recent weddings in this country. The 95% confidence interval is from SE to $|:|. [Round to the nearest cent as needed .]i b. Interpret your result in part {a}. Choose the correct answer below. [:1 A. The mean cost, p. of all recent weddings in this country is somewhere within the confidence interval. [:1 B. We can be 95% condent that the sample cost of recent weddings in this country is somewhere within the confidence interval. [J C. We can be 95% condent that any randomly selected recent wedding cost in this country is somewhere within the condence interval. [:1 D. We can be 95% condent that the mean cost. p, of all recent weddings in this country is somewhere within the confidence interval. c. Does the mean cost of all recent weddings in this country lie in the condence interval obtained in part {a}? Explain your answer. [:1 A. The population mean may or may not lie in this interval, but we can be 95% confident that it does. [:1 B. No. since there is a 5% chance that the population mean does not lie in the confidence interval. [:1 C. Yes, since the confidence interval must contain the sample and population means. [:1 D. The sample mean may or may not lie in this interval, but we can be 95% confident that it does. An issue with legalization of medical marijuana is "diversion". the process in which medical marijuana prescribed for one person is given, traded, or sold to someone who is not registered for medical marijuana use. The mean number of days that 113 adolescents in substance abuse treatment used medical marijuana in the last six months was 104.34. Assume the population standard deviation is 34 days. Complete parts (a) through Ed) below. a. Find a 99% condence interval for the mean number of days, p, of diverted medical marijuana use in the last 6 months of all adolescents in substance abuse treatment. The 99% condence interval for u is from days to days (Round to two decimal places as needed. b. Find a 90% confidence interval for the mean number of days. u. of diverted medical marijuana use in the last 6 months of all adolescents in substance abuse treatment. The 90% condence interval for u is from days to days. (Round to two decimal places as needed. 1:. Draw a graph to display both confidence intervals. Choose the correct graph below. [:1 A. [:1 B. I m on I Q I gas cu Q I ra u ' Q I ':r I. ' Q m C 93% C :4 r0. u. "i i1 .,, III |\": IIi-I-I-I-I-I-I-I-Il-I-I-I-I-I-I-I-I-LII /' Ii-I-I-I-I-I-I-i--I-I-I-I-I-I-I-I-l-III /' 95 1 i 5 95 1 i 5 [:1 C. Q [:1 D. Q I m on I I gas cu I ra u I ':r I. ' Q inl Q :4 93? "i i1 93: Cl |\"i