A pizza delivery chain advertises that it will deliver your pizza in 20 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery time is actually more than 20 minutes. For the simple random sample of 11 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 22.5 minutes with a standard deviation of 4.9 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a 0.005 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho : μ = 20 Ha P 20 Tables Keypad

A pizza delivery chain advertises that it will deliver your pizza in 20 minutes from when the order is placed. Being a skeptic, you decide to test and see if the mean delivery time is actually more than 20 minutes. For the simple random sample of 11 customers who record the amount of time it takes for each of their pizzas to be delivered, the mean is 22.5 minutes with a standard deviation of 4.9 minutes. Assume that the population distribution is approximately normal. Perform a hypothesis test using a 0.005 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho : μ = 20 Ha P 20 Tables Keypad

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Pp# 4: can you help me solve and understand this practice problem please? A step by step explanation would be appreciated. Thank you!
section 10.3 Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Do we reject the null hypothesis? Is there sufficient or insufficient data?
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9B: A publisher reports that 36% of their readers own a laptop. A marketing executive wants to test the claim that the percentage is actually less than the reported percentage. A random sample of 320 found that 30% of the readers owned a laptop. Is there sufficient evidence at the 0.01 level to support the executive's claim? Step 5: Identify the value of the level of significance. Step 6: Make the decision to reject or fail to reject the null hypothesis. Step 7:
Hi can u answer the wrong ones
SECTION 10.2 Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. Step 2 of 3 : Compute the value of the test statistic. Round your answer to three decimal places. Step 3 of 3: Do we reject the null hypothesis? Is there sufficient or insufficient data?
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