Provide the probability in terms of a decimal or percent. [7 Points Each] 1) Assume that blood pressure readings are normally distributed with a mean of 120 and a standard deviation of 8. If 100 people are randomly selected, find the probability that their mean blood pressure will be greater than 122.   2) Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $32,000 and a standard deviation of $3000. If 100 teachers are randomly selected, find the probability that their mean salary is less than $32,500.

Match each of the following compounds (note all the number in the formula are subscripts) to their molecular shape name. (hint: draw the Lewis dot structure for each)

Determine the formula mass for Copper (VI) sulfide an imaginary compound. (Enter your answer with 4  sig figs and no units).  

Construct the appropriate confidence interval. [8 Points Each] 14) Construct the indicated confidence interval for the population mean

Explain. [2 Points] 8) Given the same sample statistics, which level of confidence will produce the narrowest confidence interval: 75%, 85%, 90%, or 95%? Explain your reasoning.

Find the minimum sample size. [6 Points] 18) A researcher wishes to estimate the number of households with two cars. How large a sample is needed in order to be 95 % confident that the sample proportion will not differ from the true proportion by more than 5 %? A previous study indicates that the proportion of households with two cars is 22%.

Use the Central Limit Theorem to find the mean and standard error of the mean of the indicated sampling distribution. [4 Points] 3) The amounts of time employees of a telecommunications company have worked for the company are normally distributed with a mean of 5.4 years and a standard deviation of 2.1 years. Random samples of size 12 are drawn from the population and the mean of each sample is determined.

Provide the continuity correction. [2 Points] 6) Ten percent of the population is left-handed. A class of 5350 students is selected. Convert the binomial probability P(x ≤ 22) to a normal probability by using the correction for continuity.

Determine the formula mass for Tin (III) oxide an imaginary compound. (Enter your answer with 4  sig figs and no units).

What’s the name of the equipment shown below?