Quiz 1
the state department of transportation wants to know about out-of-state vehicles that pass over a toll bridge
with several lanes. a camera installed over one lane of the bridge photographs the license plate of every tenth
vehicle that passes through that lane.
identify the population and sample in this setting.
choose 1

Arectangle has a perimeter of 24 inches. if the width is 5 more than twice the length, what are the dimensions of the rectangle?

According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.

How many dollars more is the price of a pie than the price of a doughnut at erik’s store