A local bank claims that the waiting time for itscustomers to be served is the lowest in the area. Acompetitor bank checks the waiting times at bothbanks. The sample statistics are listed below. Test thelocal bank's claim. Use the information given below. Usea significance level of .05 and assume the variances areequal. Local Bank (n = 46, avg wait time x = 2.3, samplestandard deviation s = 1.1) Competitor Bank (n = 50,avg wait time x = 2.6, sample standard deviation s= 1.0) Are the samples dependent or independent?State your Null/Alternative hypotheses What is the test- statistic? What is the p-value? What are the criticalvalues? Does the test - statistic lie in the rejectionregion? Interpret the Result? Does the result change fora different value of alpha? Explain? FORMULAS to getanswers MUST BE SHOWN with figures

The customer waiting time is said to be low in the area based on the local bank claim. The waiting…

Answered: A local bank claims that the waiting…

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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Identify the range, variance and standard deviation. show complete solutions
Does Hypnotism Relieve Pain? The table shows the pain levels of patients before and after hypnotism. Pain level is measured on a cm scale. Assume that the two samples are randomly selected. At the 0.05 significance level, test the claim that the mean difference has increased after hypnotism.(Be sure to subtract in the same direction).
Ms. Wall administered a push-up test to her adapted PE class. There were 6 students in the class. What would be the standard deviation for the class if: Mean = 3 Median = 2.5 Mode = 2 ∑x=18 ∑x² =62 Group of answer choices 0.6 1.3 1.7 2.6 There is not enough information to calculate standard deviation
The Gidget Company makes widgets. If the production process is working properly, it turns out that the widgets are normally distributed with a hean length of at least 2.6 feet. Larger widgets can be used or altered but shorter widgets must be scrapped. You select a sample of 25 widgets, and the mean length is 2.46 feet and the sample standard deviation is 0.16 foot. Do you need to adjust the production equipment? Complete parts (a) through (d). Click here to view page 1 of the critical values for the t Distribution. Click here to view page 2 of the critical values for the t Distribution. a. If you test the null hypothesis at the 0.05 level of significance, what decision do you make using the critical value approach to hypothesis testing? What are the null and alternative hypotheses for this test? 'Α. H μ22.6 H4: µ 2.6 O C. Ho:H22.46 H,:H2.6 H,: µs2.6 O E. Ho: us2.46 H,:µ>2.46 OF. Ho:H<2.6 H1:µ22.6 What is the test statistic for this test? - 4.3750 (Round to four decimal places as…
The height of women ages 20-29 is normally distributed, with a mean of 64.2 inches. Assume σ=2.8 inches. Are you more likely to randomly select 1 woman with a height less than 64.9 inches or are you more likely to select a sample of 20 women with a mean height less than 64.9 inches? Explain. LOADING... Click the icon to view page 1 of the standard normal table. LOADING... Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 64.9 inches? enter your response here (Round to four decimal places as needed.)
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Incorrect An engineer designed a valve that will regulate water pressure on an automobile engine. The engineer designed the valve such that it would produce a mean pressure of 6.6 pounds/square inch. It is believed that the valve performs above the specifications. The valve was tested on 120 engines and the mean pressure was 6.8 pounds/square inch. Assume the variance is known to be 1.00. A level of significance of 0.05 will be used. Determine the decision rule. Enter the decision rule. Answer E Tables E Keypad How to enter your answer Keyboard Shortcuts Reject Ho if z> Tutor Skip Try Similar Submit Ansgr O 2020 Hawkes Learning MacBook Air 888 esc F1 #3 %23 & + 1 5 8 delete Q W R T Y U tab A S D G H K return caps lock C V B N M shift shift control option command command option
Does the sample size ? affect the standard deviation of all possible samplemeans? Explain your answer.
The height of women ages 20-29 is normally distributed, with a mean of 64.4 inches. Assume o = 2.4 inches. Are you more likely to randomly select 1 woman with a height less than 65.3 inches or are you more likely to select a sample of 26 women with a mean height less than 65.3 inches? Explain. Click the icon to view page 1 of the standard normal table. Click the icon to view page 2 of the standard normal table. What is the probability of randomly selecting 1 woman with a height less than 65.3 inches? (Round to four decimal places as needed.) 4 What is the probability of selecting a sample of 26 women with a mean height less than 65.3 inches? (Round to four decimal places as needed.) ... Are you more likely to randomly select 1 woman with a height less than 65.3 inches or are you more likely to select a sample of 26 women with a mean height less than 65.3 inches? Choose the correct answer below. O A. It is more likely to select a sample of 26 women with a mean height less than 65.3…
Segments - Clementines are a type of hybrid orange introduced into Florida by the United States Department of Agriculture in 1909. Historically, on average, a clementine has 10.25 segments. A fruit lover bought 100 clementines and found a mean number of 10.66 segments and a standard deviation of 2.0712 segments. The fruit lover wonders if the actual mean number of segments is more than the historic value and wants to carry out a hypothesis test. What is the test statistic for this hypothesis test? Give your answer to 4 decimal places. Your Answer: Ancwor
Do rats take less time on average than hamsters to travel through a maze? The table below shows the times in seconds that the rats and hamsters took. Rats: 36, 35, 22, 42, 25, 14, 31, 14 Hamsters: 41, 37, 12, 46, 39, 46, 38, 45, 27, 29 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.05 level of significance level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer v Select an answer v (please enter a decimal) H: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? ♥ a e. Based on this, we should Select an answer f. Thus, the final conclusion is that ... the null hypothesis. O The results are statistically insignificant at a = 0.05, so there is statistically…

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