Identify the type I error and the type II error that correspond to the given hypothesis.   The percentage of households with more than 1 pet is equal to 65%.

Find the critical value tc for a 95% confidence level when the sample size is 13.   A. 1.753   B. 2.179   C. 2.160   D. 1.96

In a random sample of six ​people, the mean driving distance to work was 24.3 miles and the standard deviation was 4.7 miles. Assume the population is normally distributed. Find the margin of error and construct a 99​% confidence interval for the population mean μ. Interpret the results.

It is estimated that 80% of people with type 2 diabetes are overweight. You want to do a study on type 2 diabetics. What is the minimum sample size you will need to estimate the true proportion of people with type 2 diabetes who are overweight to be 85% confident with a margin of error of at most 4.63%? (Use a table or SALT.)

Use the given confidence interval to find the margin of error and the sample proportion. (0.640,0.670) E= (Type an integer or a decimal.)

Refer to diagram and apply to multiple choice.

you compute a two-sample z statistic and it comes out to equal 1.6. What is the p-value if you are doing a two-tailed test? Enter a value between 0 and 100 corresponding to the percentage, e.g. if your p-value equals 2.4%, enter 2.4. Any correctly rounded version will receive full credit.

Assume that you have a normally distributed variable with known standard variance. How many standard errors do you need to add and subtract from the sample mean to obtain a 95% confidence interval?

Because population parameters are typically unknown, we use the ______ to estimate the value of the standard error.

What value of z would you use to calculate the 98% confidence interval for a population mean, given that you know the population standard deviation, the sample size and the sample mean of your sample?