Often individuals get numbers stuck in their heads.If someone were accused of check fraud, how might statistics help identify if the digits used on the check values were random or not?

Group of answer choices

A frequency distribution where a random use of digits would result in a normal distribution

A regression with each digit set as an independent variable

A frequency distribution where a random use of digits would result in a uniform distribution

A confidence interval where 5 was the middle

Use a hypothesis test where the null hypothesis was set equal to random

If a time series line graph shows large changes from one period to the next, one place to check to ensure the data are presented most accurately would be:

Group of answer choices

Colors used in the legend

Starting point of y axis

Starting point of x axis

X axis time markers

Major tick marks on the y axis

A shopper wants to determine which grocery store provides the best prices for the products the shopper purchased most often.The purchases made at each grocery store should be selected using which method?

Group of answer choices

Random sample of the items that are on sale at each store

A convenience sample based on the layout of each store

A census of the items purchased most often

A systematic sample from a random list at each store

Random sample of the items the shopper purchases most often

If neighbors wanted to have a speed bump installed on one part of the road, which statistical method would be most effective.

Group of answer choices

Regression with speed as the dependent variable

Use a confidence interval with the posted speed as the mean

Hypothesis testing with a null hypothesis that the speed is less than or equal to the posted speed

Regression with speed as an independent variable

Hypothesis testing with a null hypothesis that the speed is more than the posted speed