The data describe promotional spending by a pharmaceutical company. The share is the market share of their product in a certain region. The detail voice is the ratio of promotional visits to doctor's offices for their product to the total number of visits for similar drugs. The sample voice is the share of samples in the market that are from this company. Formulate the multiple regression model with y given by the market share and x given by the detail voice and sample voice.
Share Detail (x1) Sample (x2)
0.206 0.103 0.618
0.226 0.098 0.685
0.219 0.108 0.62
0.224 0.108 0.893
0.211 0.101 0.428
0.212 0.03 0.231
0.22 0.082 0.572
0.21 0.085 0.426
0.221 0.103 0.632
0.213 0.085 0.511
0.216 0.081 0.459
0.205 0.103 0.468
0.216 0.092 0.35
0.215 0.07 0.268
0.217 0.106 0.5
0.214 0.111 0.411
0.215 0.097 0.556
0.208 0.066 0.309
0.222 0.115 0.662
0.221 0.135 0.626
At a fixed level of sampling, do periods with increased detailing show significantly larger market share? Use α=0.05 and explain using p-value and the t-statistic.
What are the null and alternative hypotheses?
H0=
a) \beta _{1}= 0
b)1 0
c)1 0
HA=
a) 31关0 丰
b) B1 > 0
c) 61 <0
Find the t-statistic. (Round to two decimal places asneeded.)
t= __
Find the p-value.
p= ___

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

What value of x is in the solution set of 4x – 12 s 16 + 8x?

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.