Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p=0.7 versus H₁: p > 0.7 n = 250; x = 190; α = 0.1 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, ZO. Zo (Round to two decimal places as needed.)

find the p-value for the test statistic z=2.14 H0: the population mean is 20  H1: the population mean is less than 20

use z table  thanks

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.11. You would like to be 98% confident that your esimate is within 2% of the true population proportion. How large of a sample size is required?      n =

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=68.5σ=68.5. You would like to be 90% confident that your estimate is within 4 of the true population mean. How large of a sample size is required?n =

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 0.66. You would like to be 97% confident that your esimate is within 1.5% of the true population proportion. How large of a sample size is required?    n =

In the population of senior students at Shermer High School, the proportion who plan to attend college is 0.64. In a random sample of 100 students from this population, the proportion who plan to attend college is 0.75.  We would call the value 0.64 a   P-value. z-score. parameter statistic significance level.

Calculate the standard score (z-score) of the given sample mean. Round your answer to two decimal places. μ=29μ=29 and σ=8σ=8; n=66n=66; x¯=28

You are performing a left-tailed test with test statistic z = - 2.23, find the p-value to 4 decimal places Question Help: Message instructor Submit Question

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=71.8σ=71.8. You would like to be 99% confident that your estimate is within 2.5 of the true population mean. How large of a sample size is required?     n =