Questions 14–17. Suppose a market study for a new product indicates that the firm should launch the product only if the mean number of units purchased per customer in the first solicitation is significantly more than 2.0. Past experience indicates that the standard deviation of the number of units purchased in the first solicitation is 1.6 units. The null and alternative hypotheses are Ho:µ = 2 and H1:µ> 2. A random sample of 100 customers is selected. 14. If the sample shows that the mean number of units purchased is over 2.25, the firm will launch the product. Otherwise they will not launch the product. The probability of making a Type I error is closest to (a) 0.0015 (b) 0.01 (c) 0.025 (d) 0.0375 V(e) 0.0594 15. The firm wishes to control the probability of a Type I error at 0.01. The firm will launch the product if the average number of units in the sample is (a) over 2.0 (b) over 2.1975 (c) over 2.2632 (d) over 2.3136 V(e) over 2.3728 16. Suppose the sample shows that on the average, a customer purchases 2.4 units in the first solicitation. The p-value is closest to V(a) 0.0062 (b) 0.01 (c) 0.025 (d) 0.05 (e) 0.1
Questions 14–17. Suppose a market study for a new product indicates that the firm should launch the product only if the mean number of units purchased per customer in the first solicitation is significantly more than 2.0. Past experience indicates that the standard deviation of the number of units purchased in the first solicitation is 1.6 units. The null and alternative hypotheses are Ho:µ = 2 and H1:µ> 2. A random sample of 100 customers is selected. 14. If the sample shows that the mean number of units purchased is over 2.25, the firm will launch the product. Otherwise they will not launch the product. The probability of making a Type I error is closest to (a) 0.0015 (b) 0.01 (c) 0.025 (d) 0.0375 V(e) 0.0594 15. The firm wishes to control the probability of a Type I error at 0.01. The firm will launch the product if the average number of units in the sample is (a) over 2.0 (b) over 2.1975 (c) over 2.2632 (d) over 2.3136 V(e) over 2.3728 16. Suppose the sample shows that on the average, a customer purchases 2.4 units in the first solicitation. The p-value is closest to V(a) 0.0062 (b) 0.01 (c) 0.025 (d) 0.05 (e) 0.1
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Transcribed Image Text:Оиestions 14-17.
product only if the mean number of units purchased per customer in the first solicitation is
significantly more than 2.0. Past experience indicates that the standard deviation of the number
of units purchased in the first solicitation is 1.6 units. The null and alternative hypotheses are
Ho:µ = 2 and H;:µ > 2. A random sample of 100 customers is selected.
Suppose a market study for a new product indicates that the firm should launch the
14. If the sample shows that the mean number of units purchased is over 2.25, the firm will launch
the product. Otherwise they will not launch the product. The probability of making a Type I error
is closest to
(a) 0.0015
(b) 0.01
(c) 0.025
(d) 0.0375
V(e) 0.0594
15. The firm wishes to control the probability of a Type I error at 0.01. The firm will launch the product
if the average number of units in the sample is
(a) over 2.0
(b) over 2.1975 (c) over 2.2632 (d) over 2.3136 V(e) over 2.3728
16. Suppose the sample shows that on the average, a customer purchases 2.4 units in the first solicitation.
The p-value is closest to
V(a) 0.0062
(b) 0.01
(с) 0.025
(d) 0.05
(e) 0.1
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