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height of all the trees in the orchard is 120 inches cious that her uncle incorrectly recorded the mean ts of 40 trees in the orchard and finds a mean of = evel. What conclusion can Cheri draw at the end Here are some symbols you may wish to copy w

height of all the trees in the orchard is 120 inches cious that her uncle incorrectly recorded the mean ts of 40 trees in the orchard and finds a mean of = evel. What conclusion can Cheri draw at the end Here are some symbols you may wish to copy w

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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QUESTION 16 Cheri has just inherited a cherry orchard from her uncle. In his record books Cheri's uncle has recorded that the mean height of all the trees in the orchard is 120 inches with a standard deviation of 20.5 inches. Cheri is suspicious that her uncle incorrectly recorded the mean height of the cherry trees in the orchard. She samples the heights of 40 trees in the orchard and finds a mean of = 112.3 inches. She conducts a two-tailed test at the a = 0.01 level. What conclusion can Cheri draw at the end of her test? Note: Here are some symbols you may wish to copy when writing the null and alternate hypotheses: = Но: O = H1: X = h = Ox Work for ox : nearest thousandth Z = Work for z: nearest hundredth
Transcribed Image Text:QUESTION 16 Cheri has just inherited a cherry orchard from her uncle. In his record books Cheri's uncle has recorded that the mean height of all the trees in the orchard is 120 inches with a standard deviation of 20.5 inches. Cheri is suspicious that her uncle incorrectly recorded the mean height of the cherry trees in the orchard. She samples the heights of 40 trees in the orchard and finds a mean of = 112.3 inches. She conducts a two-tailed test at the a = 0.01 level. What conclusion can Cheri draw at the end of her test? Note: Here are some symbols you may wish to copy when writing the null and alternate hypotheses: = Но: O = H1: X = h = Ox Work for ox : nearest thousandth Z = Work for z: nearest hundredth
Which image below (A, B, or C) looks most similar to the curve you drew? A B C p-value = Work for p-value: %3D We the null hypothesis. This means that the trees statistically significantly different from 120 inches at the a = level of significance. Based on these results, is there evidence to support Cheri's suspicion?
Transcribed Image Text:Which image below (A, B, or C) looks most similar to the curve you drew? A B C p-value = Work for p-value: %3D We the null hypothesis. This means that the trees statistically significantly different from 120 inches at the a = level of significance. Based on these results, is there evidence to support Cheri's suspicion?
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