Statistics students believe that the mean soore on a first statistics test is 65. The instructor thinks that themean score is higher. She samples 10 statistics students and obtains the scores:Grades96 6983.2696585.574.46585.566.5Test grades are believed to be normally distributed.Use a significance level of 5%.A. State the alternative hypothesis: H:Ομ< 65Ou + 65Ομ> 65B. State the mean of the sample:(Round to two decimal places.)C. State the standard error of the sample means:(Round to fourdecimal places.)D. State the test statistic: t =(Round to four decimal places.)E. State the D-value;(Round to four decimal places.)F. Decision:O Do not reject the null hypothesis.O Reject the null hypothesis.Submit Question

Answered: Image /qna-images/answer/c0cc5f01-c16f-4e45-8fcb-8698cb307f49.jpg

Answered: stude Believe that the mean score on a…

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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Alan Baker interested in the number of chairs per household people have. Please finish the calculation below using data he collected here Number of Chairs Frequency 1 12 2 8 3 7 4 10 5 14 6 5 The mean (¯xx¯): chairs (Please show your answer to 1 decimal place.)The median: chairsThe mode: chairs (Please separate your answers by ',' in bimodal situation. Enter DNE if there is no mode.)
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A knewton.com Question The following data was calculated during a study on customer experience. Use the following information to find the test statistic and p-value at a 10% level of significance: • The claim is that the percent of companies that view customer experience as the most vital component of a growing business is different than 50%. Sample size = 50 companies • Sample proportion = 0.40 Use the table or the curve below to find the test statistic and p-value. For the curve select the appropriate test by dragging the blue point to a right-, left- or two-tailed diagram, then set the sliders. Use the purple slider to set the significance level. Use the black sliders to set the information from the study described above. z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 |-1.5 0.067 0.0660.064 0.063 0.062 0.061 0.059 o.058 0.057 0.056 -1.40.081 0.0790.078 0.076 0.075 0.074 0.072 0.071 0.069 0.068 |-1.3 0.097 0.095 0.093 0.092 0.090 0.089 0.087 0.085 0.084 0.082 -1.2 0.115…

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