A hairdresser believes that she is more profitable on Tuesdays, her lucky day of the week. She knows that, on average, she has a daily revenue of $250. She randomly samples the revenue from eight Tuesdays and finds she takes in $260, $245, $270, $260, $295, $235, $270, and $265. Assume that daily revenue is normally distributed. 1. Compute the value of the appropriate test statistic. 2. At the 10% significance level, calculate the p-value. 3. At the 10% significance level, is the hairdresser's claim supported by the data?
A hairdresser believes that she is more profitable on Tuesdays, her lucky day of the week. She knows that, on average, she has a daily revenue of $250. She randomly samples the revenue from eight Tuesdays and finds she takes in $260, $245, $270, $260, $295, $235, $270, and $265. Assume that daily revenue is normally distributed. 1. Compute the value of the appropriate test statistic. 2. At the 10% significance level, calculate the p-value. 3. At the 10% significance level, is the hairdresser's claim supported by the data?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A hairdresser believes that she is more profitable on Tuesdays, her lucky day of the week. She knows that, on average, she has a daily revenue of $250. She randomly samples the revenue from eight Tuesdays and finds she takes in $260, $245, $270, $260, $295, $235, $270, and $265. Assume that daily revenue is
1. Compute the value of the appropriate test statistic.
2. At the 10% significance level, calculate the p-value.
3. At the 10% significance level, is the hairdresser's claim supported by the data?
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