1- Claim: A minority of adults would erase all of their personal information online if they could. A software firm survey of 445 randomly selected adults showed that 42% of them would erase all of their personal information online if they could. Complete parts(a) and(b) below.

2- Claim: The mean pulse rate(in beats perminute) of adult males is equal to 69 bpm. For a random sample of 165 adultmales, the mean pulse rate is 70.1 bpm and the standard deviation is 11.4 bpm. Find the value of the test statistic.

3- In a study of the accuracy of fast fooddrive-through orders, one restaurant had 38 orders that were not accurate among 316 orders observed. Use a 0.10 significance level to test the claim that the rate of inaccurate orders is equal to10%. Does the accuracy rate appear to beacceptable?

4-Consider a drug that is used to help prevent blood clots in certain patients. In clinicaltrials, among 6166 patients treated with thisdrug, 164 developed the adverse reaction of nausea. Use a 0.05 significance level to test the claim that 3% of users develop nausea. Does nausea appear to be a problematic adversereaction?

5- A certain drug is used to treat asthma. In a clinical trial of thedrug, 16 of 265 treated subjects experienced headaches(based on data from themanufacturer). The accompanying calculator display shows results from a test of the claim that less than 9% of treated subjects experienced headaches. Use the normal distribution as an approximation to the binomial distribution and assume a 0.05 significance level to complete parts(a) through(e) below.

1-PropZTest

prop<0.09

z=1.685018871

p=0.0459924653

p=0.0603773585

n=265

6- The overhead reach distances of adult females are normally distributed with a mean of 205.5cm and a standard deviation of 8.9cm.

a. Find the probability that an individual distance is greater than 214.80 cm.

b. Find the probability that the mean for 15 randomly selected distances is greater than 204.20cm.

c. Why can the normal distribution be used in part(b), even though the sample size does not exceed30?